M4.3 Earthquake 264 km ENE of Samarai, Papua New Guinea — June 1, 2025
2025-06-01 23:54:25 UTC (2025-06-01) · approx. 9:54 AM UTC+10 local
On June 1, 2025 at 23:54 UTC, a magnitude 4.3 shallow crustal earthquake struck 264 km ENE of Samarai, Papua New Guinea, at a depth of 10.0 km and coordinates -9.4187°, 152.7580°.
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
152.7580°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Samarai, Papua New Guinea?
The magnitude 4.3 earthquake that struck 264 km ENE of Samarai, Papua New Guinea on June 1, 2025 at 23:54 UTC had a depth of 10.0 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.
Actions
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000qkuv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, June 1, 2025). M4.3 Earthquake 264 km ENE of Samarai, Papua New Guinea — June 1, 2025. Retrieved August 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qkuv/