M 4.6 earthquake: Indian Ocean (Indonesia) — August 20, 1977

M 4.6 earthquake: Indian Ocean (Indonesia) — August 20, 1977. Epicenter 341 km SW of Waingapu, depth 33 km, 23:39 Local (1977-08-20 15:39 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (341 km SW, Indonesia) — -11.671, 117.901

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