M4.3 Earthquake 66 km NW of Finschhafen, Papua New Guinea — March 23, 2025
2025-03-23 20:57:28 UTC (2025-03-23) · approx. 6:57 AM UTC+10 local
On March 23, 2025 at 20:57 UTC, a magnitude 4.3 intermediate depth earthquake struck 66 km NW of Finschhafen, Papua New Guinea, at a depth of 92.2 km and coordinates -6.1212°, 147.4374°.
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
147.4374°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Finschhafen, Papua New Guinea?
The magnitude 4.3 earthquake that struck 66 km NW of Finschhafen, Papua New Guinea on March 23, 2025 at 20:57 UTC had a depth of 92.2 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: us7000pm3v). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 23, 2025). M4.3 Earthquake 66 km NW of Finschhafen, Papua New Guinea — March 23, 2025. Retrieved May 29, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pm3v/