4.9

M4.9 Earthquake 53 km ESE of Lakatoro, VanuatuFebruary 23, 2026

2026-02-23 03:12:34 UTC (2026-02-23) · approx. 2:12 PM UTC+11 local

MagnitudeM4.9(mb)
Time03:12 UTC2:12 PM UTC+11
Depth182.4 kmintermediate depth
Coordinates-16.207°, 167.903°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 23, 2026 at 03:12 UTC, a magnitude 4.9 intermediate depth earthquake struck 53 km ESE of Lakatoro, Vanuatu, at a depth of 182.4 km and coordinates -16.2069°, 167.9025°. This earthquake was detected by 47 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, 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.

The epicenter is located in Vanuatu, a region characterized by the New Hebrides subduction zone, where the Australian Plate subducts eastward at approximately 90 mm per year. View all earthquakes in Vanuatu.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -16.21°, 167.90°

Earthquake Details

Magnitude
4.9 mb
Depth
182.4 km
intermediate depth
Location
-16.2069°N
167.9025°E

Technical Information

Event ID
us6000say0
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
47
Azimuthal Gap
40.0°
Min Station Distance
1.012°
RMS Residual
0.67 sec
Last Updated
2026-05-12 17:28:09 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Lakatoro, Vanuatu?

The magnitude 4.9 earthquake that struck 53 km ESE of Lakatoro, Vanuatu on February 23, 2026 at 03:12 UTC had a depth of 182.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -16.2069°, 167.9025°, which is 53 km ESE of Lakatoro, Vanuatu. View all earthquakes in Vanuatu.

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.

Has Vanuatu had earthquakes this big before?

The largest recorded earthquake in Vanuatu was the M7.9 Vanuatu earthquake of October 7, 2009. Today's magnitude 4.9 event is significantly smaller than that historical record.

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: us6000say0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, February 23, 2026). M4.9 Earthquake 53 km ESE of Lakatoro, VanuatuFebruary 23, 2026. Retrieved May 14, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000say0/