M4.0 Earthquake 262 km WNW of Houma, Tonga — September 25, 2024
2024-09-25 15:57:57 UTC (2024-09-25) · approx. 3:57 AM UTC-12 local
On September 25, 2024 at 15:57 UTC, a magnitude 4.0 deep-focus earthquake struck 262 km WNW of Houma, Tonga, at a depth of 526.4 km and coordinates -20.0324°, -177.5122°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-177.5122°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Houma, Tonga?
The magnitude 4.0 earthquake that struck 262 km WNW of Houma, Tonga on September 25, 2024 at 15:57 UTC had a depth of 526.4 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000nz3z). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, September 25, 2024). M4.0 Earthquake 262 km WNW of Houma, Tonga — September 25, 2024. Retrieved December 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nz3z/