M4.4 Earthquake 150 km W of Hihifo, Tonga — September 7, 2025
2025-09-07 19:03:36 UTC (2025-09-07) · approx. 7:03 AM UTC-12 local
On September 7, 2025 at 19:03 UTC, a magnitude 4.4 intermediate depth earthquake struck 150 km W of Hihifo, Tonga, at a depth of 272.0 km and coordinates -15.9833°, -175.2045°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-175.2045°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Hihifo, Tonga?
The magnitude 4.4 earthquake that struck 150 km W of Hihifo, Tonga on September 7, 2025 at 19:03 UTC had a depth of 272.0 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 4.4 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000qulg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, September 7, 2025). M4.4 Earthquake 150 km W of Hihifo, Tonga — September 7, 2025. Retrieved November 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qulg/