4.4

M4.4 Earthquake in the Vanuatu regionOctober 1, 2022

2022-10-01 20:03:58 UTC (2022-10-01) · approx. 7:03 AM UTC+11 local

MagnitudeM4.4(mb)
Time20:03 UTC7:03 AM UTC+11
Depth599.9 kmdeep-focus
Coordinates-13.897°, 170.570°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 1, 2022 at 20:03 UTC, a magnitude 4.4 deep-focus earthquake struck in the Vanuatu region, at a depth of 599.9 km and coordinates -13.8968°, 170.5700°.

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 -13.90°, 170.57°

Earthquake Details

Magnitude
4.4 mb
Depth
599.9 km
deep-focus
Location
-13.8968°N
170.5700°E

Technical Information

Event ID
us6000irk6
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
19
Azimuthal Gap
100.0°
Min Station Distance
3.604°
RMS Residual
0.70 sec
Last Updated
2022-12-10 22:53:32 UTC

Common Questions

How strong was the magnitude 4.4 earthquake in the Vanuatu region?

The magnitude 4.4 earthquake that struck in the Vanuatu region on October 1, 2022 at 20:03 UTC had a depth of 599.9 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: us6000irk6). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 1, 2022). M4.4 Earthquake in the Vanuatu regionOctober 1, 2022. Retrieved December 10, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000irk6/