Local seismotectonic analysis of the July 2019 Molucca Sea earthquake sequence based on moment tensor solutions

Local seismotectonic analysis of the July 2019 Molucca Sea earthquake sequence based on moment tensor solutions

We investigate the local seismotectonic of the Molucca Sea area using moment tensor calculations for the earthquakes that occurred in July 2019 at a depth of 10–55 km. The mainshock of Mw 6.8 occurred on July 7, followed by aftershocks until July 18, with magnitudes ranging from Mw 4.6 to Mw 5.8. Mo...

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Veröffentlicht in:Geoscience Letters 2021-10, Vol.8 (1), p.1-13, Article 33
Hauptverfasser: Prasetio, Aditya Dwi, Hasib, Mohammad, Amran, Andi, Syuhada, Febriani, Febty, Dewi, Cinantya Nirmala, Anggono, Titi
Format: Artikel
Sprache:eng
Schlagworte:
Atmospheric Sciences
Biogeosciences
Earth and Environmental Science
Earth Sciences
Earthquake sequences
Earthquakes
Frequencies
Frequency analysis
Geological faults
Geophysics/Geodesy
Indonesia
Local seismotectonic
Mathematical analysis
Molucca Sea
Moment tensor
Oceanography
Planetology
Research Letter
Seismic activity
Seismology
Sequencing
Subduction
Subduction (geology)
Tectonics
Tectonics (Geology)
Tensors
Waveforms
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Zusammenfassung:We investigate the local seismotectonic of the Molucca Sea area using moment tensor calculations for the earthquakes that occurred in July 2019 at a depth of 10–55 km. The mainshock of Mw 6.8 occurred on July 7, followed by aftershocks until July 18, with magnitudes ranging from Mw 4.6 to Mw 5.8. Moment tensor solutions are calculated by applying Isolated Asperities (ISOLA) software using the full waveform data recorded at regional seismic stations. The analyzed frequency bands used in this study are 0.01–0.03 Hz and 0.04–0.05 Hz for the event with Mw ≥ 5 and Mw 
ISSN:2196-4092
2196-4092
DOI:10.1186/s40562-021-00200-z