Source mechanism identification of 2019/02/02 Southern Sumatra earthquake from regional waveform inversion

Sumatra subduction zone is one of the most seismically active region in the world. In recent years, several large earthquakes occurred along this subduction zone. In February 2, 2019 09.27 (UTC), an earthquake with magnitude Mw ~6.0 occurred in Mentawai islands, western coast of Sumatra island. We i...

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Main Authors: Anggono, T., Syuhada, S., Febriani, F., Soedjatmiko, B., Amran, A., Prasetio, A. D., Dewi, C. N.
Format: Conference Proceeding
Language:English
Subjects:
Earthquakes
Frequencies
Seismic surveys
Subduction (geology)
Waveforms
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creator Anggono, T.
Syuhada, S.
Febriani, F.
Soedjatmiko, B.
Amran, A.
Prasetio, A. D.
Dewi, C. N.
description Sumatra subduction zone is one of the most seismically active region in the world. In recent years, several large earthquakes occurred along this subduction zone. In February 2, 2019 09.27 (UTC), an earthquake with magnitude Mw ~6.0 occurred in Mentawai islands, western coast of Sumatra island. We investigated source mechanism of this earthquake using regional waveform inversion from IA-net seismic network. The frequency band used for the inversion was selected at 0.01-0.025 Hz. We inferred that the mechanism is estimated to be thrust type mechanism.
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subjects Earthquakes
Frequencies
Seismic surveys
Subduction (geology)
Waveforms
title Source mechanism identification of 2019/02/02 Southern Sumatra earthquake from regional waveform inversion
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