4.1

M4.1 Earthquake 244 km E of Levuka, FijiDecember 1, 2025

2025-12-01 17:25:37 UTC (2025-12-01) · approx. 5:25 AM UTC-12 local

MagnitudeM4.1(mb)
Time17:25 UTC5:25 AM UTC-12
Depth596.9 kmdeep-focus
Coordinates-18.007°, -178.371°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 1, 2025 at 17:25 UTC, a magnitude 4.1 deep-focus earthquake struck 244 km E of Levuka, Fiji, at a depth of 596.9 km and coordinates -18.0067°, -178.3713°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -18.01°, -178.37°

Earthquake Details

Magnitude
4.1 mb
Depth
596.9 km
deep-focus
Location
-18.0067°N
-178.3713°E

Technical Information

Event ID
us7000rewg
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
24
Azimuthal Gap
121.0°
Min Station Distance
2.640°
RMS Residual
0.86 sec
Last Updated
2026-02-25 16:18:41 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Levuka, Fiji?

The magnitude 4.1 earthquake that struck 244 km E of Levuka, Fiji on December 1, 2025 at 17:25 UTC had a depth of 596.9 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 4.1 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.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000rewg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, December 1, 2025). M4.1 Earthquake 244 km E of Levuka, FijiDecember 1, 2025. Retrieved February 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rewg/