EarthquakeMajor

M6.6 earthquake - South Sandwich Islands region

Name: M6.6 earthquake - South Sandwich Islands region
Start: 1991-12-28T00:52:10.16+00:00
Location: South Sandwich Islands region

12712 d ago · 28 Dec 1991, 00:52 UTC South Sandwich Islands region

What happened

A magnitude 6.6 earthquake struck South Sandwich Islands region on 28 Dec 1991, 00:52 UTC at a depth of 10 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.

Timeline

First reported by USGS
16 Oct 2026, 20:46 UTC

Community

Did you feel it?

Nearby in the last 30 days

4.5
M4.5 earthquake - South Sandwich Islands region
4 d ago140 km deep
Moderate
4.9
M4.9 earthquake - South Sandwich Islands region
13 d ago10 km deep
Moderate
4.8
M4.8 earthquake - South Sandwich Islands region
17 d ago114 km deep
Moderate
4.8
M4.8 earthquake - South Sandwich Islands region
18 d ago93 km deep
Moderate
4.9
M4.9 earthquake - South Sandwich Islands region
19 d ago35 km deep
Moderate
5.2
M5.2 earthquake - South Sandwich Islands region
19 d ago35 km deep
Strong
4.5
M4.5 earthquake - South Sandwich Islands region
23 d ago155 km deep
Moderate
4.6
M4.6 earthquake - South Sandwich Islands region
24 d ago29 km deep
Moderate
4.5
M4.5 earthquake - South Sandwich Islands region
24 d ago84 km deep
Moderate
5.0
M5.0 earthquake - South Sandwich Islands region
25 d ago10 km deep
Strong