M4.3 Earthquake 119 km SE of Pangai, Tonga — November 10, 2025
2025-11-10 18:22:29 UTC (2025-11-10) · approx. 6:22 AM UTC-12 local
On November 10, 2025 at 18:22 UTC, a magnitude 4.3 shallow crustal earthquake struck 119 km SE of Pangai, Tonga, at a depth of 10.0 km and coordinates -20.6644°, -173.6545°.
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.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.4 mainshock that occurred 22 days ago 99 km SSE of Pangai, Tonga. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
-173.6545°E
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Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Pangai, Tonga?
The magnitude 4.3 earthquake that struck 119 km SE of Pangai, Tonga on November 10, 2025 at 18:22 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.
Is this the same earthquake as the M5.4 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.4 mainshock that occurred earlier 99 km SSE of Pangai, Tonga. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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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: us7000refw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, November 10, 2025). M4.3 Earthquake 119 km SE of Pangai, Tonga — November 10, 2025. Retrieved January 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000refw/