The invention relates to the field of
seismology,
signal processing and
artificial intelligence, namely to automated methods and systems for
early detection of earthquakes based on the analysis of seismic data, and can be used to recognize and classify longitudinal
waves (P-
waves) preceding the main seismic shocks, using
deep learning and
computer vision methods. The aim of the present invention is to create an automated early
earthquake detection system using the classification of seismic
signal spectrograms generated by the complex Morlet wave CWT using the YOLO deep
neural network architecture. The technical result is an increase in the accuracy and speed of early
earthquake detection by analyzing the time-frequency characteristics of seismic signals and automatically localizing P-wave signatures using a neural
network model. The device includes a seismic sensor, an analog-to-
digital converter, and a
microprocessor implementing time-
frequency analysis and neural network detection algorithms. The seismic
signal is recorded in real time, digitized, segmented into time intervals, and subjected to preliminary digital
processing, including
noise filtering and amplitude normalization. Each time interval is converted into a time-frequency representation using a
continuous wavelet transform, generating a two-dimensional distribution of signal energy over time and frequency. Based on the obtained data, a
spectrogram is generated and fed to the YOLO neural network detection model, which is capable of automatically detecting and localizing longitudinal P-wave signatures. Based on the
neural network analysis, a determination is made regarding the presence of a P-wave and its
arrival time is determined. If a predetermined threshold is exceeded, an early warning signal is generated. The
system provides for data accumulation and the possibility of subsequent retraining of the neural
network model.