M 4.6 earthquake: Caribbean Sea (San Juan, Puerto Rico) — August 29, 1974

M 4.6 earthquake: Caribbean Sea (San Juan, Puerto Rico) — August 29, 1974. Epicenter 97 km SE of San Juan, depth 33 km, 09:18 Local (1974-08-29 13:18 UTC). Shaking felt by ~581K people. Readings from every reporting agency, affected towns, aftershock sequence.

Caribbean Sea (97 km SE of San Juan, Puerto Rico) — 17.825, -65.485

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