4.5

M4.5 Earthquake 131 km S of Isangel, VanuatuFebruary 26, 2024

2024-02-26 21:35:56 UTC (2024-02-26) · approx. 8:35 AM UTC+11 local

MagnitudeM4.5(mb)
Time21:35 UTC8:35 AM UTC+11
Depth49.6 kmshallow crustal
Coordinates-20.719°, 169.452°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 26, 2024 at 21:35 UTC, a magnitude 4.5 shallow crustal earthquake struck 131 km S of Isangel, Vanuatu, at a depth of 49.6 km and coordinates -20.7191°, 169.4523°. This earthquake was detected by 23 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — 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 -20.72°, 169.45°

Earthquake Details

Magnitude
4.5 mb
Depth
49.6 km
shallow crustal
Location
-20.7191°N
169.4523°E

Technical Information

Event ID
us6000mg3n
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
23
Azimuthal Gap
144.0°
Min Station Distance
2.652°
RMS Residual
0.76 sec
Last Updated
2024-05-10 21:25:57 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Isangel, Vanuatu?

The magnitude 4.5 earthquake that struck 131 km S of Isangel, Vanuatu on February 26, 2024 at 21:35 UTC had a depth of 49.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -20.7191°, 169.4523°, which is 131 km S of Isangel, Vanuatu. View all earthquakes in Vanuatu.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 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 4.5 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000mg3n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 26, 2024). M4.5 Earthquake 131 km S of Isangel, VanuatuFebruary 26, 2024. Retrieved May 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mg3n/