M5.6 Earthquake 271 km ESE of Tadine, New Caledonia — March 31, 2022
2022-03-31 06:12:24 UTC (2022-03-31) · approx. 5:12 PM UTC+11 local
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On March 31, 2022 at 06:12 UTC, a magnitude 5.6 shallow crustal earthquake struck 271 km ESE of Tadine, New Caledonia, at a depth of 10.0 km and coordinates -22.3751°, 170.3502°.0 The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected.
Physical scale: An earthquake of magnitude 5.6 releases seismic energy equivalent to roughly 4 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 4.4 km — a useful intuition for the size of the slip patch on the fault.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from submitted citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 6 |
Earthquake Details
170.3502°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.6 earthquake near Tadine, New Caledonia?
The magnitude 5.6 earthquake that struck 271 km ESE of Tadine, New Caledonia on March 31, 2022 at 06:12 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 -22.3751°, 170.3502°, which is 271 km ESE of Tadine, New Caledonia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.6 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000gymz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, March 31, 2022). M5.6 Earthquake 271 km ESE of Tadine, New Caledonia — March 31, 2022. Retrieved June 4, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gymz/