M4.1 Earthquake near Near the south coast of Papua, Indonesia — March 21, 2023
2023-03-21 19:06:10 UTC (2023-03-21) · approx. 4:06 AM UTC+9 local
On March 21, 2023 at 19:06 UTC, a magnitude 4.1 shallow crustal earthquake struck near Near the south coast of Papua, Indonesia, at a depth of 21.4 km and coordinates -4.0941°, 133.5606°.
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
133.5606°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Near the south coast of Papua, Indonesia?
The magnitude 4.1 earthquake that struck near Near the south coast of Papua, Indonesia on March 21, 2023 at 19:06 UTC had a depth of 21.4 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: us7000jmid). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, March 21, 2023). M4.1 Earthquake near Near the south coast of Papua, Indonesia — March 21, 2023. Retrieved May 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jmid/