EarthquakeModerategreen alert

M4.6 earthquake - 153 km W of Neiafu, Tonga

Name: M4.6 earthquake - 153 km W of Neiafu, Tonga
Start: 2026-10-16T15:06:34.084+00:00
Location: 153 km W of Neiafu, Tonga

6 h ago · 16 Oct 2026, 15:06 UTC 153 km W of Neiafu, Tonga

What happened

A magnitude 4.6 earthquake struck 153 km W of Neiafu, Tonga on 16 Oct 2026, 15:06 UTC at a depth of 248 km.

Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.

Green alert: limited impact expected.

Timeline

First reported by USGS
16 Oct 2026, 18:30 UTC
Also reported by GDACS
16 Oct 2026, 18:31 UTC
GDACS alert level Green
16 Oct 2026, 18:31 UTC

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