M 6.1 earthquake: Caribbean Sea (San Juan, Puerto Rico) — July 8, 1970

M 6.1 earthquake: Caribbean Sea (San Juan, Puerto Rico) — July 8, 1970. Epicenter 169 km E of San Juan, depth 143 km, 00:49 Local (1970-07-08 04:49 UTC). Shaking felt by ~2.3M people. Readings from every reporting agency, affected towns, aftershock sequence.

Caribbean Sea (169 km E of San Juan, Puerto Rico) — 17.901, -64.638

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