M4.3 Earthquake 180 km NW of Panguna, Papua New Guinea — June 22, 2025
2025-06-22 23:09:00 UTC (2025-06-22) · approx. 9:09 AM UTC+10 local
On June 22, 2025 at 23:09 UTC, a magnitude 4.3 intermediate depth earthquake struck 180 km NW of Panguna, Papua New Guinea, at a depth of 173.5 km and coordinates -5.2184°, 154.2770°.
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
154.2770°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Panguna, Papua New Guinea?
The magnitude 4.3 earthquake that struck 180 km NW of Panguna, Papua New Guinea on June 22, 2025 at 23:09 UTC had a depth of 173.5 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: us7000qany). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, June 22, 2025). M4.3 Earthquake 180 km NW of Panguna, Papua New Guinea — June 22, 2025. Retrieved September 2, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qany/