4.4

M4.4 Earthquake 51 km SE of Port-Vila, VanuatuSeptember 7, 2022

2022-09-07 19:59:15 UTC (2022-09-07) · approx. 6:59 AM UTC+11 local

MagnitudeM4.4(mb)
Time19:59 UTC6:59 AM UTC+11
Depth160.5 kmintermediate depth
Coordinates-18.042°, 168.676°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 7, 2022 at 19:59 UTC, a magnitude 4.4 intermediate depth earthquake struck 51 km SE of Port-Vila, Vanuatu, at a depth of 160.5 km and coordinates -18.0416°, 168.6764°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -18.04°, 168.68°

Earthquake Details

Magnitude
4.4 mb
Depth
160.5 km
intermediate depth
Location
-18.0416°N
168.6764°E

Technical Information

Event ID
us6000ihyy
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
38
Azimuthal Gap
67.0°
Min Station Distance
2.941°
RMS Residual
0.72 sec
Last Updated
2022-11-15 19:05:46 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Port-Vila, Vanuatu?

The magnitude 4.4 earthquake that struck 51 km SE of Port-Vila, Vanuatu on September 7, 2022 at 19:59 UTC had a depth of 160.5 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000ihyy). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, September 7, 2022). M4.4 Earthquake 51 km SE of Port-Vila, VanuatuSeptember 7, 2022. Retrieved November 15, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000ihyy/