World Map › Major Earthquakes Since 1900 › 1983
Historic Earthquake
1983 Chagos Archipelago Earthquake
30 November 1983 · Chagos Archipelago, Diego Garcia · Uk Territory
On 30 November 1983 at 17:46 UTC, a magnitude 7.6 earthquake struck Uk Territory (Chagos Archipelago, Diego Garcia), at a depth of 10 km. It occurred on the Australian Plate, 27 km from its boundary with the Indian Plate (mid-ocean ridge). It triggered a tsunami.
- Date
- 30 November 1983
- Time
- 17:46 UTC
- Magnitude
- 7.6
- Depth
- 10 km
- Maximum Intensity
- VI (Mercalli)
- Tsunami
- Yes
- Plate
- Australian Plate
- Country
- Uk Territory
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth