M4.0 Earthquake 255 km W of Haveluloto, Tonga — July 11, 2022
2022-07-11 18:04:05 UTC (2022-07-11) · approx. 6:04 AM UTC-12 local
On July 11, 2022 at 18:04 UTC, a magnitude 4.0 deep-focus earthquake struck 255 km W of Haveluloto, Tonga, at a depth of 371.5 km and coordinates -21.3322°, -177.6654°.
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
-177.6654°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Haveluloto, Tonga?
The magnitude 4.0 earthquake that struck 255 km W of Haveluloto, Tonga on July 11, 2022 at 18:04 UTC had a depth of 371.5 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: us6000i3p0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 11, 2022). M4.0 Earthquake 255 km W of Haveluloto, Tonga — July 11, 2022. Retrieved September 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i3p0/