Mechanisms of Faulting in the 24 October 2020 Mn 5.4 Avaj Earthquake
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کد مقاله : 2104-NIGS
نویسندگان
1دانشجوی دکتری-دانشکده علوم زمین-دانشگاه تحصیلات تکمیلی زنجان-زنجان-ایران
2دانشگاه تحصیلات تکمیلی علوم پایه زنجان زنجان - ایران
3Institute of Geophysics, University of Tehran, Tehran, Iran.
چکیده
On 2020 October 24, at 11:34:15.4 UTC an earthquake occurred in the Avaj area with a magnitude of Mn=5.4. Based on the report of Iranian Seismological Center (IRSC) this event located near the Avaj city with the focal depth of 10 km. So far there are no report of focal mechanism for this event by any seismological agencies. Here using broadband seismic waveform modeling, we report the focal mechanism of this event and 8 other events (ML≥3.5) in the region. Our results show the northeast 81° dipping, NW-striking fault plane (movement by a small dextral strike-slip component) was responsible for the Avaj 2020 main event at centroid depth of 12 km.
کلیدواژه ها
Title
Mechanisms of Faulting in the 24 October 2020 Mn 5.4 Avaj Earthquake
Authors
Mir Ali Hassanzadeh, Shiva Arvin, Mohammadreza Jamalreyhani
Abstract
On 2020 October 24, at 11:34:15.4 UTC an earthquake occurred in the Avaj area with a magnitude of Mn=5.4. Based on the report of Iranian Seismological Center (IRSC) this event located near the Avaj city with the focal depth of 10 km. So far there are no report of focal mechanism for this event by any seismological agencies. Here using broadband seismic waveform modeling, we report the focal mechanism of this event and 8 other events (ML≥3.5) in the region. Our results show the northeast 81° dipping, NW-striking fault plane (movement by a small dextral strike-slip component) was responsible for the Avaj 2020 main event at centroid depth of 12 km.
Keywords
Earthquake Focal Mechanism, Avaj, strike-slip movement, Waveform Modeling