M4.0 Earthquake near Kepulauan Barat Daya, Indonesia — March 29, 2023
2023-03-29 23:38:38 UTC (2023-03-29) · approx. 8:38 AM UTC+9 local
On March 29, 2023 at 23:38 UTC, a magnitude 4.0 intermediate depth earthquake struck near Kepulauan Barat Daya, Indonesia, at a depth of 148.3 km and coordinates -7.3196°, 128.5809°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
128.5809°E
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Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Kepulauan Barat Daya, Indonesia?
The magnitude 4.0 earthquake that struck near Kepulauan Barat Daya, Indonesia on March 29, 2023 at 23:38 UTC had a depth of 148.3 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000k1rv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, March 29, 2023). M4.0 Earthquake near Kepulauan Barat Daya, Indonesia — March 29, 2023. Retrieved June 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k1rv/