An application of coherence-based method for earthquake detection and microseismic monitoring (Irpinia fault system, Southern Italy)
| Autor: | Sebastian Heimann, Matteo Picozzi, Simone Cesca, Aldo Zollo, Guido Maria Adinolfi |
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| Přispěvatelé: | Adinolfi, G. M., Picozzi, M., Cesca, S., Heimann, S., Zollo, A. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Irpinia Fault System
Earthquake Detection Hydrogeology Microseism 010504 meteorology & atmospheric sciences Induced seismicity Earthquake Location 010502 geochemistry & geophysics Microseismicity 01 natural sciences Geophysics Earthquake detection Induced Seismicity Geochemistry and Petrology Waveform Seismic Monitoring Performance improvement 1980 Irpinia Earthquake Seismology Geology 0105 earth and related environmental sciences Earthquake location |
| Zdroj: | Journal of Seismology |
| Popis: | A coherence-based earthquake detection technique was applied to continuous (1 year) waveform data recorded along the Irpinia fault system (Southern Italy). The earthquake detection was performed using coherent P- and S-wave arrivals recorded by the dense seismic network operating in Irpinia and assuming a local velocity model. We applied a strategy to simultaneously detect and locate earthquakes and to discriminate among true and false detections using an automated and fast procedure, able to process 1 year of data in ~ 1.75 days. The final catalogue of automatically retrieved earthquakes shows a performance improvement with respect to the standard monitoring practices, with an increase in the number of detected small events of about a factor three with respect to the automatic Earth-worm Binder implemented in ISNet and decreases in completeness magnitude of almost half unit magnitude. |
| Databáze: | OpenAIRE |
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