Open AccessSeismic cycle before the main earthquake and the end of time after shocks in West Sumatra
Author(s) -
F. A. Savitri,
S Syafriani,
F. Anggriani
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1481/1/012035
Subject(s) - aftershock , geology , seismology , intraplate earthquake , earthquake swarm , magnitude (astronomy) , archipelago , foreshock , induced seismicity , tectonics , oceanography , physics , astronomy
Indonesian archipelago is one of the areas that often experiences earthquakes, this is because Indonesia is located between four plates that move together. One area in Indonesia that is prone to earthquakes is West Sumatra, because West Sumatra is in the vicinity of the active zone. The earthquake that occurred in West Sumatra in the period 2000-2019 had the smallest magnitude of 4.5 SR and the largest magnitude was 7.6 SR. The earthquake in West Sumatra has a Mainshock-Aftershock seismic cycle, an earthquake that begins with a preliminary earthquake and is followed by aftershocks. The suitable method to estimate the end time of aftershocks in West Sumatra is the Utsu method.