Real-time array-based seismic source location

An apparatus for analyzing a seismic source, the apparatus comprising:

• an array of sensors configured to detect waveform data;
• and
• at least one computer processor configured to identify an arrival of a first arriving S-wave emitted from the seismic source at the array of sensors in real-time, by:
• continuously analyzing waveforms received by the sensors,
• continuously monitoring back-azimuth and slowness data within the waveforms,
• identifying an arrival of a first arriving P-wave of the waveforms based upon the back azimuth and slowness data,
• based upon the monitored slowness of the identified first arriving P-wave, identifying the arrival of the first arriving S-wave at the array of sensors,
• calculating an epicentral distance of the seismic source with respect to the array of sensors, based upon a time difference between the arrival of the first arriving S-wave and the arrival of the first arriving P-wave,
• locating an epicenter of the seismic source based on the epicentral distance and the back-azimuth of the first arriving P-wave, and
• generating a warning regarding an earthquake based on the detected located epicenter of the seismic source.