An Automated Method for Developing a Catalog of Small Earthquakes Using Data of a Dense Seismic Array and Nearby Stations
| Autor: | Pierre Boué, Yifang Cheng, P. E. Share, Frank L. Vernon, Florent Brenguier, Chris Johnson, Aurélien Mordret, Yehuda Ben-Zion, Zefeng Li |
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| Rok vydání: | 2020 |
| Předmět: |
Similarity (geometry)
010504 meteorology & atmospheric sciences Magnitude (mathematics) Time shifting 010502 geochemistry & geophysics Geodesy 01 natural sciences Geophysics Seismic array Range (statistics) Waveform Slowness Sensitivity (electronics) Geology 0105 earth and related environmental sciences |
| Zdroj: | Seismological Research Letters. 91:2862-2871 |
| ISSN: | 1938-2057 0895-0695 |
| Popis: | We propose a new automated procedure for using continuous seismic waveforms recorded by a dense array and its nearby regional stations for P-wave arrival identification, location, and magnitude estimation of small earthquakes. The method is illustrated with a one-day waveform dataset recorded by a dense array with 99 sensors near Anza, California, and 24 surrounding regional stations within 50 km of the dense array. We search a wide range of epicentral locations and apparent horizontal slowness values (0–15 s/km) in the 15–25 Hz range and time shift the dense array waveforms accordingly. For each location–slowness combination, the average neighboring station waveform similarity (avgCC) of station pairs |
| Databáze: | OpenAIRE |
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