M4.4 Earthquake 294 km WSW of Haveluloto, Tonga — April 9, 2022
2022-04-09 22:53:23 UTC (2022-04-09) · approx. 10:53 AM UTC-12 local
On April 9, 2022 at 22:53 UTC, a magnitude 4.4 deep-focus earthquake struck 294 km WSW of Haveluloto, Tonga, at a depth of 349.3 km and coordinates -22.3178°, -177.7678°.
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.
Earthquake Details
-177.7678°E
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Common Questions
How strong was the magnitude 4.4 earthquake near Haveluloto, Tonga?
The magnitude 4.4 earthquake that struck 294 km WSW of Haveluloto, Tonga on April 9, 2022 at 22:53 UTC had a depth of 349.3 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.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000h0zi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, April 9, 2022). M4.4 Earthquake 294 km WSW of Haveluloto, Tonga — April 9, 2022. Retrieved June 20, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000h0zi/