M 4.7 earthquake: Indian Ocean (India) — December 21, 1983

M 4.7 earthquake: Indian Ocean (India) — December 21, 1983. Epicenter 321 km NE of Port Blair, depth 33 km, 03:01 Local (1983-12-20 21:01 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (321 km NE, India) — 12.776, 95.465

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