M 4.9 earthquake: North Pacific Ocean (Indonesia) — August 23, 1977

M 4.9 earthquake: North Pacific Ocean (Indonesia) — August 23, 1977. Epicenter 253 km N of Gorontalo, depth 546 km, 00:48 Local (1977-08-22 16:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (253 km N, Indonesia) — 2.729, 122.405

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