M4.2 Earthquake 245 km ESE of Tadine, New Caledonia — December 27, 2021
2021-12-27 21:29:14 UTC (2021-12-27) · approx. 8:29 AM UTC+11 local
On December 27, 2021 at 21:29 UTC, a magnitude 4.2 shallow crustal earthquake struck 245 km ESE of Tadine, New Caledonia, at a depth of 10.0 km and coordinates -22.6870°, 169.9268°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
169.9268°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Tadine, New Caledonia?
The magnitude 4.2 earthquake that struck 245 km ESE of Tadine, New Caledonia on December 27, 2021 at 21:29 UTC had a depth of 10.0 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000g9xc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 27, 2021). M4.2 Earthquake 245 km ESE of Tadine, New Caledonia — December 27, 2021. Retrieved March 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000g9xc/