M4.3 Earthquake 261 km WNW of Houma, Tonga — July 11, 2026
2026-07-11 06:32:14 UTC (2 hours ago) · approx. 6:32 PM UTC-12 local
On July 11, 2026 at 06:32 UTC, a magnitude 4.3 deep-focus earthquake struck 261 km WNW of Houma, Tonga, at a depth of 541.9 km and coordinates -20.2023°, -177.5969°.
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
-177.5969°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Houma, Tonga?
The magnitude 4.3 earthquake that struck 261 km WNW of Houma, Tonga on July 11, 2026 at 06:32 UTC had a depth of 541.9 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.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks.
Actions
Location
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000szn7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 11, 2026). M4.3 Earthquake 261 km WNW of Houma, Tonga — July 11, 2026. Retrieved July 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000szn7/