4.5

M4.5 Earthquake 265 km SSE of Alo, Wallis and FutunaJune 23, 2026

2026-06-23 21:53:19 UTC (2026-06-23) · approx. 9:53 AM UTC-12 local

MagnitudeM4.5(mb)
Time21:53 UTC9:53 AM UTC-12
Depth417.2 kmdeep-focus
Coordinates-16.549°, -177.224°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 23, 2026 at 21:53 UTC, a magnitude 4.5 deep-focus earthquake struck 265 km SSE of Alo, Wallis and Futuna, at a depth of 417.2 km and coordinates -16.5490°, -177.2242°. This earthquake was detected by 70 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -16.55°, -177.22°

Earthquake Details

Magnitude
4.5 mb
Depth
417.2 km
deep-focus
Location
-16.5490°N
-177.2242°E

Technical Information

Event ID
us6000t7qk
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
70
Azimuthal Gap
46.0°
Min Station Distance
2.390°
RMS Residual
0.88 sec
Last Updated
2026-06-29 22:56:30 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Alo, Wallis and Futuna?

The magnitude 4.5 earthquake that struck 265 km SSE of Alo, Wallis and Futuna on June 23, 2026 at 21:53 UTC had a depth of 417.2 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -16.5490°, -177.2242°, which is 265 km SSE of Alo, Wallis and Futuna.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000t7qk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 23, 2026). M4.5 Earthquake 265 km SSE of Alo, Wallis and FutunaJune 23, 2026. Retrieved June 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t7qk/