EarthquakeModerate

M4.9 earthquake - South Sandwich Islands region

Name: M4.9 earthquake - South Sandwich Islands region
Start: 2021-08-21T00:14:23.619+00:00
Location: South Sandwich Islands region

1884 d ago · 21 Aug 2021, 00:14 UTC South Sandwich Islands region

What happened

A magnitude 4.9 earthquake struck South Sandwich Islands region on 21 Aug 2021, 00:14 UTC at a depth of 74 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.

Timeline

First reported by USGS
17 Oct 2026, 10:21 UTC

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