M5.1 Earthquake 158 km E of Tadine, New Caledonia — July 21, 2022
2022-07-21 09:46:13 UTC (2022-07-21) · approx. 8:46 PM UTC+11 local
On July 21, 2022 at 09:46 UTC, a magnitude 5.1 shallow crustal earthquake struck 158 km E of Tadine, New Caledonia, at a depth of 10.0 km and coordinates -21.7711°, 169.3958°. This earthquake was detected by 59 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
169.3958°E
Technical Information
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Common Questions
How strong was the magnitude 5.1 earthquake near Tadine, New Caledonia?
The magnitude 5.1 earthquake that struck 158 km E of Tadine, New Caledonia on July 21, 2022 at 09:46 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -21.7711°, 169.3958°, which is 158 km E of Tadine, New Caledonia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000hscu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 21, 2022). M5.1 Earthquake 158 km E of Tadine, New Caledonia — July 21, 2022. Retrieved September 27, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hscu/