M 4.7 earthquake: Caribbean Sea (San Juan, Puerto Rico) — April 1, 1973

M 4.7 earthquake: Caribbean Sea (San Juan, Puerto Rico) — April 1, 1973. Epicenter 226 km NE of San Juan, depth 34 km, 14:25 Local (1973-04-01 18:25 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Caribbean Sea (226 km NE of San Juan, Puerto Rico) — 19.282, -64.171

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