4.0

M4.0 Earthquake 53 km N of Isangel, VanuatuAugust 3, 2022

2022-08-03 22:39:09 UTC (2022-08-03) · approx. 9:39 AM UTC+11 local

MagnitudeM4.0(mb)
Time22:39 UTC9:39 AM UTC+11
Depth236.6 kmintermediate depth
Coordinates-19.068°, 169.374°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 3, 2022 at 22:39 UTC, a magnitude 4.0 intermediate depth earthquake struck 53 km N of Isangel, Vanuatu, at a depth of 236.6 km and coordinates -19.0683°, 169.3736°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -19.07°, 169.37°

Earthquake Details

Magnitude
4.0 mb
Depth
236.6 km
intermediate depth
Location
-19.0683°N
169.3736°E

Technical Information

Event ID
us6000iaa3
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
19
Azimuthal Gap
135.0°
Min Station Distance
3.961°
RMS Residual
0.34 sec
Last Updated
2022-10-12 14:51:37 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Isangel, Vanuatu?

The magnitude 4.0 earthquake that struck 53 km N of Isangel, Vanuatu on August 3, 2022 at 22:39 UTC had a depth of 236.6 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 4.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000iaa3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, August 3, 2022). M4.0 Earthquake 53 km N of Isangel, VanuatuAugust 3, 2022. Retrieved October 12, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iaa3/