M4.1 Earthquake 81 km ESE of Wau, Papua New Guinea — August 22, 2025
2025-08-22 18:13:50 UTC (2025-08-22) · approx. 4:13 AM UTC+10 local
On August 22, 2025 at 18:13 UTC, a magnitude 4.1 intermediate depth earthquake struck 81 km ESE of Wau, Papua New Guinea, at a depth of 105.6 km and coordinates -7.6539°, 147.3831°.
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
147.3831°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Wau, Papua New Guinea?
The magnitude 4.1 earthquake that struck 81 km ESE of Wau, Papua New Guinea on August 22, 2025 at 18:13 UTC had a depth of 105.6 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 4.1 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: us7000qwqv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 22, 2025). M4.1 Earthquake 81 km ESE of Wau, Papua New Guinea — August 22, 2025. Retrieved November 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qwqv/