M4.3 Earthquake near Kepulauan Babar, Indonesia — August 9, 2021
2021-08-09 21:50:06 UTC (2021-08-09) · approx. 6:50 AM UTC+9 local
On August 9, 2021 at 21:50 UTC, a magnitude 4.3 intermediate depth earthquake struck near Kepulauan Babar, Indonesia, at a depth of 131.6 km and coordinates -7.0879°, 129.7926°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
129.7926°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Kepulauan Babar, Indonesia?
The magnitude 4.3 earthquake that struck near Kepulauan Babar, Indonesia on August 9, 2021 at 21:50 UTC had a depth of 131.6 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000f3pz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, August 9, 2021). M4.3 Earthquake near Kepulauan Babar, Indonesia — August 9, 2021. Retrieved October 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000f3pz/