4.9

M4.9 Earthquake in the Vanuatu regionFebruary 17, 2024

2024-02-17 02:42:39 UTC (2024-02-17) · approx. 2:42 PM UTC+12 local

MagnitudeM4.9(mb)
Time02:42 UTC2:42 PM UTC+12
Depth10.0 kmshallow crustal
Coordinates-19.690°, 173.377°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 17, 2024 at 02:42 UTC, a magnitude 4.9 shallow crustal earthquake struck in the Vanuatu region, at a depth of 10.0 km and coordinates -19.6897°, 173.3766°. This earthquake was detected by 37 seismic stations with good 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 -19.69°, 173.38°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
-19.6897°N
173.3766°E

Technical Information

Event ID
us7000lzt2
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
37
Azimuthal Gap
103.0°
Min Station Distance
4.835°
RMS Residual
1.06 sec
Last Updated
2024-04-24 14:42:04 UTC

Nearby Earthquakes (Last 7 Days)

Common Questions

How strong was the magnitude 4.9 earthquake in the Vanuatu region?

The magnitude 4.9 earthquake that struck in the Vanuatu region on February 17, 2024 at 02:42 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 -19.6897°, 173.3766°, which is in the Vanuatu region. 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.

Authoritative source: USGS event page (event ID: us7000lzt2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 17, 2024). M4.9 Earthquake in the Vanuatu regionFebruary 17, 2024. Retrieved April 24, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000lzt2/