Mechanical responses and earthquake activities on tectonic setting of Banda block (case study: Ambon earthquake occurred on September 26, 2019)

Jaya Murjaya, Dwikorita Karnawati, Supriyanto, Rahmat S. Yuliatmoko, Thomas Hardy, Supriyanto Rohadi, Aditya Rahman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ambon earthquake (Mw 6.5) occurred on September 26, 2019, has an almost identical location with the earthquake which occurred on September 09, 1932. Accordingly, the authors considered that the return period (Tr) of the earthquake takes 87 years. Along the interseismic period, there were stress accumulation processes related to the earthquake (Mw 6.5). Based on the passing through of scaling law relation of the earthquake, the authors calculated the fault length (L), fault width (W), and displacement rate (d), as well as the seismic moment (M0), are about 19 km, 15 km, 46-47 cm, and 6.185x1025 dyne-cm, respectively. By using the values off M0, L, W, and Tr, the authors have estimated other parameters, such as the static stress drop (9.21 bars), slip rate (8-9 mm/y), strain rate 6x10-15/s, and static stress Coulomb (more than 1 Pa). Two earthquakes that triggered the tsunami occurred on January 29, 2004 (Mw 6.7) and March 14, 2006 (Mw 6.7) in a similar tectonic regime and adjacent to the Ambon earthquake occurred on September 26, 2019. By using a passing through physical basic approach, the authors have estimated the return period (Tr) of both earthquakes (i.e. about 93 years and 113 years), respectively.

Original languageEnglish
Title of host publication2nd Science and Mathematics International Conference, SMIC 2020
Subtitle of host publicationTransforming Research and Education of Science and Mathematics in the Digital Age
EditorsMeiliasari Meiliasari, Yuli Rahmawati, Mutia Delina, Ella Fitriani
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440753
DOIs
Publication statusPublished - 2 Apr 2021
Event2nd Science and Mathematics International Conference: Transforming Research and Education of Science and Mathematics in the Digital Age, SMIC 2020 - Jakarta, Indonesia
Duration: 8 Aug 20209 Aug 2020

Publication series

NameAIP Conference Proceedings
Volume2331
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd Science and Mathematics International Conference: Transforming Research and Education of Science and Mathematics in the Digital Age, SMIC 2020
Country/TerritoryIndonesia
CityJakarta
Period8/08/209/08/20

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