Earthquake information presentation device and earthquake information presentation program

Abstract

To obtain an earthquake information presentation device and an earthquake information presentation program capable of supporting the selection of a construction location for disaster base buildings to be backup during an occurrence of an earthquake for buildings provided at a main base.SOLUTION: An earthquake information presentation device 10 includes an acquisition part 11A for acquiring location information showing a location site for a main building being a building to be main, and earthquake motion index information showing an earthquake motion index assumed to occur at the location site, a derivation part 11B for deriving distribution information showing a distribution of earthquake motion indexes of earthquake motion that occur at a plurality of locations predetermined to be candidates for construction locations of secondary buildings to be backup for the main building within a predetermined area including the location site in the case that earthquake motion of the earthquake motion indexes shown by the earthquake motion index information occurs at the location site shown by the location information, and a presentation part 11C for presenting the distribution information.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an earthquake information presentation device and an earthquake information presentation program.

Background Art

[0002] Conventionally, the following technologies have existed as technologies that can contribute to damage to buildings caused by seismic motion.

[0003] Patent Document 1 aims to enable storing or processing a necessary and sufficient amount of data (information) effective for disaster prevention at the time of earthquake occurrence, including data such as aftershocks, without making the amount of data related to earthquakes enormous. An earthquake information collection system is disclosed.

[0004] This earthquake information collection system includes an earthquake remote monitoring device having seismic motion detection means for detecting information on seismic motion caused by an earthquake when the earthquake occurs, earthquake information collection means for collecting the information on seismic motion detected by the earthquake remote monitoring device, and earthquake information storage means for collectively storing the information on seismic motion detected over a predetermined time from the occurrence of the earthquake as a series of information on seismic motion related to one earthquake. It is characterized by comprising an earthquake information collection device.

[0005] Patent Document 2 discloses an earthquake information network system aimed at enabling implementation of earthquake countermeasures in a wider range and more quickly beyond earthquake countermeasures within individual seismographs and countermeasure systems.

[0006] This earthquake information network system includes a plurality of seismograph devices each having a seismograph computer that detects seismic wave data, which is vibration waveform data of an earthquake, together with elapsed time data that is data of the time corresponding to each part of the waveform, and estimates and calculates earthquake information including a source distance that is the distance to the earthquake's hypocenter and a magnitude that is an index value representing the scale of the earthquake based on the seismic wave data and the elapsed time data. The plurality of seismograph devices are connected to a central processing unit having a central computer via a wired or wireless first line, and an earthquake countermeasure control device that performs control corresponding to the earthquake is connected to each of the plurality of seismograph devices via a wired or wireless second line. When an earthquake occurs, the seismograph computer of any one of the plurality of seismograph devices estimates and calculates an earthquake damage index value indicating the degree of earthquake damage that the earthquake exerts on the seismograph device and its vicinity based on the source distance between the seismograph device and the earthquake's hypocenter obtained by the estimation calculation and the magnitude of the earthquake.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0008] By the way, since the Great East Japan Earthquake, there has been an increasing demand for buildings (hereinafter also referred to as "disaster base buildings") that serve as disaster bases at locations different from the normal main bases in order to play an alternative role during earthquakes for business continuity. In selecting the location of this disaster base building, there is a trade-off relationship between the convenience of being close to the main base and the possibility of being damaged simultaneously with the main base.

[0009] The former can be evaluated based on the distance and the status of transportation network development, but it is difficult to make a quantitative evaluation regarding the latter. For example, although the earthquake hazard map is publicly available on the Earthquake Hazard Station J-SHIS (Internet <URL:https: / / www.j-shis.bosai.go.jp / >) provided by the National Research and Development Agency for Disaster Prevention Science and Technology, as shown in FIG. 9, for example, most areas in the Kanto region have a seismic intensity of 7, and it is unclear which area should be selected to build disaster prevention base buildings for the major bases in the central part of the city.

[0010] In addition, since disaster prevention base buildings need to serve as backup bases for continuing business when areas where major bases such as head office buildings are located are hit by disasters such as floods and earthquakes, it is necessary to avoid being damaged simultaneously with the major bases. Regarding floods, there are methods such as building on high ground in the vicinity based on the flood hazard map, but for earthquakes, since the location and scale of the earthquake source are unclear until an earthquake actually occurs, there is a problem that it is difficult to select an area with a low possibility of being damaged simultaneously.

[0011] Note that the technologies disclosed in Patent Document 1 and Patent Document 2 above are for accumulating earthquake-related data and estimating the damage situation after an earthquake occurs, and cannot solve the above problems.

[0012] The present disclosure has been made in view of the above circumstances, and an object thereof is to provide an earthquake information presentation device and an earthquake information presentation program that can assist in selecting the construction site of a disaster prevention base building that serves as a backup when an earthquake occurs in a building provided at a major base.

Means for Solving the Problems

[0013] The earthquake information presentation device according to the present invention described in claim 1 includes an acquisition unit that acquires location information indicating the location of a main building, which is the main building, and seismic motion index information indicating a seismic motion index assumed to occur at the location; and, when seismic motion corresponding to the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the location information, a derivation unit that derives distribution information indicating the distribution of the seismic motion index of seismic motion occurring at a plurality of predetermined locations that are candidates for the construction site of a sub-building that serves as a backup for the main building within a predetermined area including the location; and a presentation unit that presents the distribution information.

[0014] According to the earthquake information presentation device according to the present invention described in claim 1, location information indicating the location of a main building, which is the main building, and seismic motion index information indicating a seismic motion index assumed to occur at the location are acquired, and when seismic motion corresponding to the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the location information, distribution information indicating the distribution of the seismic motion index of seismic motion occurring at a plurality of predetermined locations that are candidates for the construction site of a sub-building that serves as a backup for the main building within a predetermined area including the location is derived, and by presenting the distribution information, it is possible to assist in selecting the construction site of a disaster relief base building that serves as a backup when an earthquake occurs in a building provided at a main base.

[0015] The earthquake information presentation device according to the present invention described in claim 2 is the earthquake information presentation device according to claim 1, wherein the derivation unit performs re-decomposition on the evaluation result of the seismic hazard corresponding to the location indicated by the location information, re-evaluates the seismic hazard at the plurality of locations using the result of the re-decomposition, and derives the distribution information using the result of the re-evaluation.

[0016] According to the earthquake information presentation device according to the present invention described in claim 2, re-decomposition is performed on the evaluation result of the seismic hazard corresponding to the location indicated by the above location information, and using the result of the re-decomposition, re-evaluation of the seismic hazard at the above plurality of locations is performed, and using the result of the re-evaluation, by deriving the above distribution information, compared with the case where the above re-decomposition and re-evaluation are not performed, the distribution information can be derived with higher accuracy.

[0017] The earthquake information presentation device according to the present invention described in claim 3 is the earthquake information presentation device described in claim 1 or claim 2, wherein the presentation unit performs the presentation by displaying the above distribution information in the form of a seismic hazard map.

[0018] According to the earthquake information presentation device according to the present invention described in claim 3, by displaying the distribution information in the form of a seismic hazard map, compared with the case where the distribution information is presented by information other than a map such as character information or numerical information, the overall image of the seismic hazard can be grasped more easily.

[0019] The earthquake information presentation device according to the present invention described in claim 4 is the earthquake information presentation device described in claim 1 or claim 2, wherein the seismic motion index is at least one of seismic intensity, long-period seismic motion class, maximum acceleration of seismic motion, maximum velocity of seismic motion, and response spectrum of seismic motion.

[0020] According to the earthquake information presentation device according to the present invention described in claim 4, by setting the seismic motion index to at least one of seismic intensity, long-period seismic motion class, maximum acceleration of seismic motion, maximum velocity of seismic motion, and response spectrum of seismic motion, distribution information can be presented for the applied seismic motion index.

[0021] The earthquake information presentation program according to the present invention described in claim 5 acquires site information indicating the location of the main building, which is the main building, and seismic motion index information indicating a seismic motion index assumed to occur at the location, and when seismic motion of the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the site information, a distribution information indicating the distribution of the seismic motion index of the seismic motion occurring at a plurality of predetermined points that are candidates for the construction site of the sub-building that backs up the main building within a predetermined area including the location is derived, and the computer is caused to execute a process of presenting the distribution information.

[0022] According to the earthquake information presentation program according to the present invention described in claim 5, site information indicating the location of the main building, which is the main building, and seismic motion index information indicating a seismic motion index assumed to occur at the location are acquired, and when seismic motion of the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the site information, a distribution information indicating the distribution of the seismic motion index of the seismic motion occurring at a plurality of predetermined points that are candidates for the construction site of the sub-building that backs up the main building within a predetermined area including the location is derived, and by presenting the distribution information, it is possible to assist in selecting the construction site of the disaster base building that serves as a backup when an earthquake occurs in the building provided at the main base.

Effect of the Invention

[0023] As described above, according to the present invention, it is possible to assist in selecting the construction site of the disaster base building that serves as a backup when an earthquake occurs in the building provided at the main base.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0025] Hereinafter, with reference to the drawings, embodiments for carrying out the present invention will be described in detail.

[0026] First, with reference to FIG. 1, the configuration of the earthquake information presentation device 10 according to the present embodiment will be described. FIG. 1 is a block diagram showing an example of the hardware configuration of the earthquake information presentation device 10 according to the present embodiment. Examples of the earthquake information presentation device 10 include information processing devices such as personal computers and server computers.

[0027] As shown in FIG. 1, the earthquake information presentation device 10 according to the present embodiment includes a CPU (Central Processing Unit) 11 as a processor, a memory 12 as a temporary storage area, a non-volatile storage unit 13, an input unit 14 such as a keyboard and a mouse, a display unit 15 such as a liquid crystal display, a medium reading / writing device (R / W) 16, and a communication interface (I / F) unit 18. The CPU 11, the memory 12, the storage unit 13, the input unit 14, the display unit 15, the medium reading / writing device 16, and the communication I / F unit 18 are connected to each other via a bus B. The medium reading / writing device 16 reads information written on the recording medium 17 and writes information to the recording medium 17.

[0028] The storage unit 13 is realized by an HDD (Hard Disk Drive), an SSD (Solid State Drive), a flash memory, or the like. In the storage unit 13 as a storage medium, an earthquake information presentation program 13A is stored. The earthquake information presentation program 13A is stored (installed) in the storage unit 13 when the recording medium 17 on which the program 13A is written is set in the medium reading / writing device 16 and the medium reading / writing device 16 reads the program 13A from the recording medium 17. The CPU 11 appropriately reads the earthquake information presentation program 13A from the storage unit 13, expands it in the memory 12, and sequentially executes the processes included in the program 13A.

[0029] In addition, an earthquake hazard curve database 13B is stored in the storage unit 13. Details of the earthquake hazard curve database 13B will be described later.

[0030] Next, with reference to FIG. 2, the functional configuration of the earthquake information presentation device 10 according to the present embodiment will be described. FIG. 2 is a block diagram showing an example of the functional configuration of the earthquake information presentation device 10 according to the present embodiment.

[0031] As shown in FIG. 2, the earthquake information presentation device 10 according to the present embodiment includes an acquisition unit 11A, a derivation unit 11B, and a presentation unit 11C. When the CPU 11 of the earthquake information presentation device 10 executes the earthquake information presentation program 13A, it functions as the acquisition unit 11A, the derivation unit 11B, and the presentation unit 11C.

[0032] The acquisition unit 11A according to the present embodiment acquires site information indicating the location of the main building, which is the main building (hereinafter simply referred to as the "site location"), and seismic motion index information indicating a seismic motion index assumed to occur at the site location. In the present embodiment, the acquisition of the site information and the seismic motion index information by the acquisition unit 11A is performed by input through the input unit 14 by the user of the earthquake information presentation device 10 (hereinafter simply referred to as the "user"), but it is not limited to this form. For example, the site information and the seismic motion index information may be stored in advance in the storage unit 13, and may be acquired by reading these information from the storage unit 13.

[0033] Further, the derivation unit 11B according to the present embodiment derives distribution information (hereinafter simply referred to as "distribution information") indicating the distribution of seismic motion indices of seismic motions occurring at a plurality of predetermined points that are candidates for the construction sites of the sub-buildings that back up the main building within a predetermined area including the site location when the seismic motion of the seismic motion index indicated by the seismic motion index information occurs at the site location indicated by the site information.

[0034] Then, the presentation unit 11C according to the present embodiment presents the distribution information. In the present embodiment, as the presentation of the distribution information by the presentation unit 11C, presentation by display using the display unit 15 is applied, but it is not limited to this form. For example, presentation by voice using an audio playback device or presentation by printing using an image forming device may be applied as the presentation of the distribution information by the presentation unit 11C.

[0035] Here, the derivation unit 11B according to the present embodiment performs re-decomposition on the evaluation result of the seismic hazard corresponding to the location indicated by the location information (in this embodiment, the seismic hazard curve described later), and uses the result of the re-decomposition to re-evaluate the seismic hazard at the above-mentioned plurality of locations, and further derives distribution information using the result of the re-evaluation.

[0036] In addition, the presentation unit 11C according to the present embodiment performs the above presentation by displaying the distribution information in the form of a seismic hazard map.

[0037] In this embodiment, the maximum acceleration of ground motion is applied as the ground motion index, but it is not limited to this form. For example, any one of seismic intensity, long-period ground motion class, maximum velocity of ground motion, and response spectrum of ground motion, or a plurality of combinations of seismic intensity, long-period ground motion class, maximum acceleration of ground motion, maximum velocity of ground motion, and response spectrum of ground motion may be applied as the ground motion index.

[0038] Here, the method for deriving the seismic hazard curve according to the present embodiment will be described.

[0039] In the seismic information presentation device 10 according to the present embodiment, in order to derive a seismic hazard curve, information indicating conditions related to the earthquake source in the area including the locations that can be applied as the main bases, which are the locations of the main buildings described above, targeted by the seismic information presentation device 10 (in this embodiment, the whole of Japan, hereinafter referred to as the "target area") (hereinafter referred to as "earthquake source information"), the position, shape, magnitude, and earthquake occurrence probability of active faults are used.

[0040] In addition, in the seismic information presentation device 10 according to the present embodiment, in order to derive a seismic hazard curve, information indicating the statistical characteristics of past earthquakes (hereinafter referred to as "statistical characteristic information"), an earthquake motion prediction formula from the earthquake source to the engineering base, and an evaluation formula for the influence of the surface ground on the earthquake motion (ground amplification factor) are used.

[0041] In the earthquake information presentation device 10 according to this embodiment, as the earthquake source information, the information by the above-described J-SHIS is used, and as the statistical characteristic information, the Gutenberg-Richter formula is used.

[0042] Also, in the earthquake information presentation device 10 according to this embodiment, as the ground motion prediction formula, the evaluation formula proposed in "Proposal of Maximum Ground Motion and Response Spectrum Estimation Formula Using Meteorological Agency 87-Type Strong Motion Meter Records" (Masanao Yasuda, Fumio Yamazaki, Fuyuki Katahira), Proceedings of the Earthquake Engineering Research Symposium, Vol. 24, 1997. is used. Further, in the earthquake information presentation device 10 according to this embodiment, as the evaluation formula for the influence of the surface ground on the ground motion, the evaluation formula proposed in "Relationship between Ground Amplification Factor and Average S-Wave Velocity of Ground Based on Strong Motion Records of Proximity Observation Point Pairs" (Kazuo Fujimoto, Saburo Midorikawa), Transactions of the Japan Society of Earthquake Engineering, Vol. 6, 2006 is used.

[0043] That is, in the earthquake information presentation device 10 according to this embodiment, among the evaluation conditions of the earthquake hazard curve for the main bases, the conditions regarding the earthquake source indicated by the earthquake source information are the same as those of J-SHIS, a specific earthquake model is used for major active faults and trench-type earthquakes, and other earthquakes are modeled as regional earthquake sources. For the specific earthquake model, the position, shape, and occurrence probability of the earthquake source are set using the publicly available data by J-SHIS, and for the regional earthquake source, its shape and the parameters regarding the Gutenberg-Richter formula are set using the publicly available data by J-SHIS.

[0044] The ground motion prediction formula adopts the above-described evaluation formula by Yasuda, Yamazaki, and Katahira for evaluating the maximum acceleration in the engineering basis, and its variation range is limited to ±3σ, and the probability for the range deviating from it is set to 0 (zero). The ground amplification factor is calculated using the above-described evaluation formula by Fujimoto and Midorikawa from the average S-wave velocity (AVS30) publicly available from J-SHIS.

[0045] Note that since the method for deriving the earthquake hazard curve is already known in the prior art, further explanation is omitted.

[0046] Next, referring to FIG. 3, the earthquake hazard curve database 13B according to this embodiment will be described. FIG. 3 is a schematic diagram showing an example of the configuration of the earthquake hazard curve database 13B according to this embodiment.

[0047] As shown in FIG. 3, in the earthquake hazard curve database 13B according to this embodiment, each piece of information on the main base point and the earthquake hazard curve is stored in an associated manner.

[0048] The above main base point is information indicating the name of the main base point, and the above earthquake hazard curve is information indicating the exceedance probability for each predetermined time interval of the ground motion index (in this embodiment, the maximum acceleration) at the corresponding main base point.

[0049] Next, referring to FIGS. 4 to 8, the operation of the earthquake information presentation device 10 according to this embodiment will be described. When an instruction input to start the execution of the earthquake information presentation program 13A is input via the input unit 14 by the user, the CPU 11 of the earthquake information presentation device 10 executes the program 13A, and the earthquake information presentation process shown in FIG. 4 is executed. Here, for the sake of avoiding complication, the case where the earthquake hazard curve database 13B has been constructed will be described.

[0050] In step 100 of FIG. 4, the CPU 11 controls the display unit 15 to display an initial information input screen having a predetermined configuration, and in step 102, the CPU 11 waits until predetermined information is input.

[0051] FIG. 5 shows an example of the initial information input screen according to this embodiment. As shown in FIG. 5, in the initial information input screen according to this embodiment, a message prompting the input of information is displayed. Further, in this initial information input screen, a first input area 15A for inputting location information indicating the location of the main base point (hereinafter referred to as the "target main base point") to be processed and a second input area 15B for inputting ground motion index information indicating the maximum acceleration of the target ground motion (hereinafter referred to as the "target maximum acceleration") are displayed.

[0052] When the initial information input screen shown in FIG. 5 is displayed on the display unit 15 as an example, the user inputs the location information and the seismic motion index information in the corresponding input areas via the input unit 14, and then selects the end button 15E. In response to this, step 102 is judged as positive, and the process proceeds to step 104. In this embodiment, the location information is applied as the latitude and longitude information corresponding to the target major base, but this is not limited to this. For example, the location information of the target major base may be acquired by having the user input information indicating the name of the target major base, or a map indicating the target area (all of Japan in this embodiment) may be displayed on the display unit 15, and the location information of the target major base may be acquired by having the user specify the position of the target major base on the map.

[0053] In step 104, the CPU 11 reads out the earthquake hazard curve corresponding to the main base indicated by the location information input on the initial information input screen (hereinafter referred to as the "target earthquake hazard curve") from the earthquake hazard curve database 13B.

[0054] In step 106, the CPU 11 executes a re-resolve process for re-resolved the target earthquake hazard curve. Note that the "re-resolve" here means extracting only the target main bases and the hypocenters that can generate the target maximum acceleration designated by the user from the hypocenter information and statistical characteristic information set for the target earthquake hazard curve.

[0055] In the re-decomposition according to this embodiment, epicenters are extracted whose epicenter distance is 200 km or less and whose +3σ value for the seismic motion prediction formula expressed by the following formula (1) is equal to or greater than the reference value y of the seismic motion index assumed for the target major base stations.

[0056]

number

[0057] Here, the seismic motion index Y mApply the maximum acceleration of ground motion on the ground surface as the seismic motion index Y m For the assumed reference value y for Y, use 401 (cm / s 2 ), which corresponds to a weak seismic intensity of 6, and extract the earthquake sources that meet or exceed this reference value y.

[0058] Thus, here the maximum acceleration is used as the seismic motion index Y m However, when applying it to super high-rise buildings, etc., it is desirable to use the long-period ground motion class as the seismic motion index. Thus, different indices can be used as the seismic motion index according to this embodiment. For this purpose, each formula should be changed in the seismic motion prediction formula and the evaluation formula of the ground amplification factor corresponding to the applied seismic motion index.

[0059] The conditions for extracting earthquake sources in the above form are to simultaneously satisfy equations (1) and (2).

[0060]

Equation

[0061] Here, for the seismic motion index Y m assumed at the target main base, when considering the earthquake source group E ~ for which Y m > y is possible, M ~ and X ~ are variables representing the earthquake source scale and the earthquake source distance for the earthquake source group E ~ respectively. f1 represents the above-mentioned seismic motion prediction formula, σ represents the variation (accuracy) of the seismic motion prediction formula, amp represents the ground amplification factor, and is calculated by the above-mentioned evaluation formula of the ground amplification factor.

[0062] In step 108, the CPU 11 executes a re-evaluation process for re-evaluating the processing target seismic hazard curve. Here, the "re-evaluation" means re-evaluating the seismic hazard for the earthquake source group E ~ extracted by re-decomposition.

[0063] Generally, earthquake source group E ~ Since a plurality of earthquake sources are extracted, in the re-evaluation according to the present embodiment, each earthquake source is denoted as E k (k = 1, 2, 3, ···, n). The re-evaluation result of seismic hazard, P(Y S > y; t|Y m > y; t) is evaluated by the formula (3) for each candidate location of the disaster base building. Here, P Ck is the contribution rate of the earthquake source E ~ k , and P(Y S > y; t|E ~ k ) is the probability that the ground motion index Y ~ k generated by the earthquake source E S exceeds the reference value y (here, 401 cm / s corresponding to seismic intensity 6 - weak 2 ) assumed for the ground motion index in the disaster base building. The re-evaluation result of this ground motion hazard, P(Y S > y; t|Y m > y; t) is calculated for each location (for example, every 500 m mesh).

[0064]

Equation

[0065] In the formula (3), P Ck means the contribution rate of the earthquake source E ~ k as described above. In the present embodiment, when the ground motion index at the target main base is equal to or greater than the reference value y, it is defined as the ratio of the exceedance probability by the earthquake source E ~ k to the total exceedance probability by all earthquakes, and is calculated by the formula (4).

[0066]

Equation

[0067] In step 110, the CPU 11 uses P(Y S > y; t|Ym The display unit 15 is controlled to display an earthquake hazard map presentation screen having a predetermined configuration, using >y;t) as a map. In step 112, the CPU 11 waits until predetermined information is input.

[0068] FIG. 6 shows an example of an earthquake hazard map presentation screen according to the present embodiment when Chiyoda Ward, Tokyo is applied as the target main base.

[0069] In the example shown in FIG. 6, when the seismic intensity in Chiyoda Ward, Tokyo is 6- or higher, an earthquake hazard map showing the probability of the seismic intensity being 6- or higher at the same time is illustrated. Different from the map shown in FIG. 9 where the whole Kanto region had almost the same result, in the example shown in FIG. 6, in the area within a 10 km radius from Chiyoda Ward, Nerima Ward has a relatively low probability, and while it is cited as a candidate for the construction site of disaster prevention base buildings, it can be confirmed that areas along the Arakawa River and the Edogawa River such as Edogawa Ward are likely to be affected simultaneously because of poor ground conditions.

[0070] Note that FIG. 7 shows an example of an earthquake hazard map presentation screen according to the present embodiment when Osaka City, Osaka Prefecture is applied as the target main base, and FIG. 8 shows an example of an earthquake hazard map presentation screen according to the present embodiment when Nagoya City, Aichi Prefecture is applied as the target main base.

[0071] When the earthquake hazard map presentation screen is displayed on the display unit 15, after the user checks the displayed earthquake hazard map, the user designates the end button 15E via the input unit 14. In response to this, step 112 becomes an affirmative determination, and this earthquake information presentation process ends.

[0072] As described above, according to the present embodiment, site information indicating the location of the main building, which is the main structure, and seismic motion index information indicating a seismic motion index assumed to occur at the location are acquired. When seismic motion corresponding to the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the site information, distribution information indicating the distribution of the seismic motion indices of the seismic motions occurring at a plurality of predetermined locations that are candidates for the construction site of the sub-building that serves as a backup for the main building within a predetermined area including the location is derived and the distribution information is presented. Therefore, it is possible to assist in selecting the construction site of the disaster base building that serves as a backup when an earthquake occurs in the building provided at the main base.

[0073] Also, according to the present embodiment, re-decomposition of the evaluation result of the seismic hazard corresponding to the location indicated by the site information is performed, and using the result of the re-decomposition, re-evaluation of the seismic hazard at the plurality of locations is performed, and using the result of the re-evaluation, the distribution information is derived. Therefore, the distribution information can be derived with higher accuracy compared to the case where the re-decomposition and re-evaluation are not performed.

[0074] Also, according to the present embodiment, the distribution information is displayed in the form of a seismic hazard map. Therefore, the overall picture of the seismic hazard can be grasped more easily compared to the case where the distribution information is presented by information other than a map such as character information or numerical information.

[0075] Furthermore, according to the present embodiment, the seismic motion index is set to at least one of seismic intensity, long-period seismic motion class, maximum acceleration of seismic motion, maximum velocity of seismic motion, and response spectrum of seismic motion. Therefore, the distribution information can be presented for the applied seismic motion index.

[0076] In the above-described embodiment, the case where the seismic hazard curve for a point that can be a main base point is derived in advance and registered as a database has been described, but the present invention is not limited to this form. For example, when the target main base point is specified by the user, the seismic hazard curve for the target main base point may be derived.

[0077] Also, in the above-described embodiment, the case where the re-decomposition of the seismic hazard curve is executed when the seismic motion index is input by the user has been described, but the present invention is not limited to this form. For example, the re-decomposition may be performed in advance and registered as a database.

[0078] Also, the configuration of the seismic hazard curve database 13B applied in the above-described embodiment is merely an example, and it goes without saying that the present invention is not limited to the illustrated example.

[0079] Also, the flow of the earthquake information presentation process applied in the above-described embodiment is merely an example, and the present invention is not limited to the illustrated example.

[0080] Furthermore, in the above-described embodiment, for example, as the hardware structure of a processing unit that executes each process of the acquisition unit 11A, the derivation unit 11B, and the presentation unit 11C, various types of processors shown below can be used. As described above, the above-mentioned various types of processors include, in addition to a CPU, which is a general-purpose processor that executes software (program) and functions as a processing unit, a programmable logic device (PLD) such as an FPGA (Field-Programmable Gate Array), which is a processor whose circuit configuration can be changed after manufacture, and a dedicated electric circuit, which is a processor having a circuit configuration designed specifically to execute a specific process, such as an ASIC (Application Specific Integrated Circuit).

[0081] The processing unit may be composed of one of these various processors, or may be composed of a combination of two or more processors of the same or different types (for example, a combination of multiple FPGAs, or a combination of a CPU and an FPGA). Also, the processing unit may be composed of one processor.

[0082] As an example of configuring the processing unit with one processor, first, as represented by computers such as clients and servers, there is a form in which one processor is configured by a combination of one or more CPUs and software, and this processor functions as the processing unit. Second, as represented by a System On Chip (SoC), etc., there is a form in which a processor that realizes the functions of the entire system including the processing unit with one IC (Integrated Circuit) chip is used. Thus, the processing unit is configured using one or more of the above various processors as a hardware structure.

[0083] Furthermore, as a hardware structure of these various processors, more specifically, an electrical circuit (circuitry) combining circuit elements such as semiconductor elements can be used.

Explanation of Signs

[0084] 10 Earthquake information presentation device 11 CPU 11A Acquisition unit 11B Derivation unit 11C Presentation unit 12 Memory 13 Storage unit 13A Earthquake information presentation program 13B Earthquake hazard curve database 14 Input unit 15 Display unit 15A First input area 15B Second input area 15E End button 16 Medium reading / writing device 17 Recording medium 18 Communication I / F unit

Claims

1. An acquisition unit that acquires site information indicating the location of a main building, which is the main structure, and seismic motion index information indicating a seismic motion index assumed to occur at the location; When seismic motion corresponding to the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the site information, a predetermined plurality of locations that are candidates for the construction site of a sub-building that backs up the main building within a predetermined area including the location are derived. A derivation unit that shows the distribution of the seismic motion indices of the seismic motion occurring at the locations; A presentation unit that presents the distribution information; A seismic information presentation device comprising:

2. The derivation unit: Performs re-decomposition on the evaluation result of the seismic hazard corresponding to the location indicated by the site information, Using the result of the re-decomposition, re-evaluate the seismic hazard at the plurality of locations, Using the result of the re-evaluation, derive the distribution information. The seismic information presentation device according to Claim 1.

3. The presentation unit performs the presentation by displaying the distribution information in the form of a seismic hazard map. The seismic information presentation device according to Claim 1 or Claim 2.

4. The seismic motion index is at least one of seismic intensity, long-period seismic motion class, maximum acceleration of seismic motion, maximum velocity of seismic motion, and response spectrum of seismic motion. The seismic information presentation device according to Claim 1 or Claim 2.

5. Acquire site information indicating the location of a main building, which is the main structure, and seismic motion index information indicating a seismic motion index assumed to occur at the location, When seismic motion corresponding to the seismic motion index indicated by the seismic motion index information occurs at the location indicated by the site information, a predetermined plurality of locations that are candidates for the construction site of a sub-building that backs up the main building within a predetermined area including the location are derived. Derive distribution information indicating the distribution of the seismic motion indices of the seismic motion occurring at the locations, Present the distribution information. A seismic information presentation program that causes a computer to execute the process. ​ ​ ​ ​

Images