4.9

M4.9 Earthquake 82 km NE of Tadine, New CaledoniaDecember 1, 2025

2025-12-01 21:12:19 UTC (2025-12-01) · approx. 8:12 AM UTC+11 local

Felt by 1 person across nearby locations.

MagnitudeM4.9(mb)
Time21:12 UTC8:12 AM UTC+11
Depth10.0 kmshallow crustal
Coordinates-21.113°, 168.522°
Felt by1DYFI response
Status✓ Reviewed by USGS

On December 1, 2025 at 21:12 UTC, a magnitude 4.9 shallow crustal earthquake struck 82 km NE of Tadine, New Caledonia, at a depth of 10.0 km and coordinates -21.1132°, 168.5224°. This earthquake was detected by 40 seismic stations with good location accuracy and was assigned a USGS significance rating of 370, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -21.11°, 168.52°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.9 earthquake near 82 km NE of Tadine, New Caledonia

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
-21.1132°N
168.5224°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
us7000reyi
Event Type
earthquake
Status
✓ Reviewed
Significance
370
Stations Used
40
Azimuthal Gap
90.0°
Min Station Distance
1.796°
RMS Residual
0.84 sec
Last Updated
2026-02-25 16:18:41 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Tadine, New Caledonia?

The magnitude 4.9 earthquake that struck 82 km NE of Tadine, New Caledonia on December 1, 2025 at 21:12 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -21.1132°, 168.5224°, which is 82 km NE of Tadine, New Caledonia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000reyi). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, December 1, 2025). M4.9 Earthquake 82 km NE of Tadine, New CaledoniaDecember 1, 2025. Retrieved May 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000reyi/