4.6

M4.6 Earthquake 111 km SSE of Alo, Wallis and FutunaFebruary 7, 2022

2022-02-07 19:06:31 UTC (2022-02-07) · approx. 7:06 AM UTC-12 local

MagnitudeM4.6(mb)
Time19:06 UTC7:06 AM UTC-12
Depth409.9 kmdeep-focus
Coordinates-15.219°, -177.670°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 7, 2022 at 19:06 UTC, a magnitude 4.6 deep-focus earthquake struck 111 km SSE of Alo, Wallis and Futuna, at a depth of 409.9 km and coordinates -15.2186°, -177.6697°.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -15.22°, -177.67°

Earthquake Details

Magnitude
4.6 mb
Depth
409.9 km
deep-focus
Location
-15.2186°N
-177.6697°E

Technical Information

Event ID
us7000giws
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Azimuthal Gap
55.0°
Min Station Distance
4.811°
RMS Residual
0.98 sec
Last Updated
2022-04-19 17:39:00 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Alo, Wallis and Futuna?

The magnitude 4.6 earthquake that struck 111 km SSE of Alo, Wallis and Futuna on February 7, 2022 at 19:06 UTC had a depth of 409.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -15.2186°, -177.6697°, which is 111 km SSE of Alo, Wallis and Futuna.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000giws). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, February 7, 2022). M4.6 Earthquake 111 km SSE of Alo, Wallis and FutunaFebruary 7, 2022. Retrieved April 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000giws/