M4.1 Earthquake 281 km W of Banda Aceh, Indonesia — October 31, 2023
2023-10-31 20:36:53 UTC (2023-10-31) · approx. 2:36 AM UTC+6 local
On October 31, 2023 at 20:36 UTC, a magnitude 4.1 shallow crustal earthquake struck 281 km W of Banda Aceh, Indonesia, at a depth of 10.0 km and coordinates 5.3796°, 92.8004°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
92.8004°E
Technical Information
Common Questions
How strong was the magnitude 4.1 earthquake near Banda Aceh, Indonesia?
The magnitude 4.1 earthquake that struck 281 km W of Banda Aceh, Indonesia on October 31, 2023 at 20:36 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000l8nr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 31, 2023). M4.1 Earthquake 281 km W of Banda Aceh, Indonesia — October 31, 2023. Retrieved January 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000l8nr/