4.7

M4.7 Earthquake 285 km SSE of Alo, Wallis and FutunaApril 11, 2022

2022-04-11 19:01:54 UTC (2022-04-11) · approx. 7:01 AM UTC-12 local

MagnitudeM4.7(mb)
Time19:01 UTC7:01 AM UTC-12
Depth10.0 kmshallow crustal
Coordinates-16.739°, -177.223°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 11, 2022 at 19:01 UTC, a magnitude 4.7 shallow crustal earthquake struck 285 km SSE of Alo, Wallis and Futuna, at a depth of 10.0 km and coordinates -16.7392°, -177.2226°.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -16.74°, -177.22°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
-16.7392°N
-177.2226°E

Technical Information

Event ID
us7000h28b
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Azimuthal Gap
123.0°
Min Station Distance
2.568°
RMS Residual
1.09 sec
Last Updated
2022-06-20 22:08:18 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Alo, Wallis and Futuna?

The magnitude 4.7 earthquake that struck 285 km SSE of Alo, Wallis and Futuna on April 11, 2022 at 19:01 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 -16.7392°, -177.2226°, which is 285 km SSE of Alo, Wallis and Futuna.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000h28b). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, April 11, 2022). M4.7 Earthquake 285 km SSE of Alo, Wallis and FutunaApril 11, 2022. Retrieved June 20, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000h28b/