1983 Chagos Archipelago earthquake

1983 Chagos Archipelago earthquake
Date 30 November 1983 (1983-11-30)
Magnitude Ms 7.7
Depth 10 km
Epicenter 6°51′S 72°07′E / 6.85°S 72.11°E / -6.85; 72.11

The 1983 Chagos Archipelago earthquake occurred on November 30 at 17:46 UTC in the region of the Chagos Archipelago, British Indian Ocean Territory. This earthquake had a magnitude of Ms 7.7. This earthquake occurred in the Indian Plate near the Central Indian Ridge. The Central Indian Ridge is unusually active in near-ridge earthquakes. The intense seismic activity in this region may indicate an early stage of converging plate boundary, which is responsible for the N-S extension near Chagos. There was a 40 cm tsunami reported in Victoria, Seychelles.[1][2]

References

  1. ↑ http://www.gps.caltech.edu/uploads/File/People/kanamori/HKjgr88b.pdf
  2. ↑ http://earthquake.usgs.gov/earthquakes/eqarchives/significant/sig_1983.php
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