M4.0 Earthquake 208 km SW of Hihifo, Tonga — November 27, 2022
2022-11-27 23:50:46 UTC (2022-11-27) · approx. 11:50 AM UTC-12 local
On November 27, 2022 at 23:50 UTC, a magnitude 4.0 intermediate depth earthquake struck 208 km SW of Hihifo, Tonga, at a depth of 250.0 km and coordinates -17.1393°, -175.3160°.
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
-175.3160°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Hihifo, Tonga?
The magnitude 4.0 earthquake that struck 208 km SW of Hihifo, Tonga on November 27, 2022 at 23:50 UTC had a depth of 250.0 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 4.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000j642). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, November 27, 2022). M4.0 Earthquake 208 km SW of Hihifo, Tonga — November 27, 2022. Retrieved February 5, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000j642/