M 4.8 earthquake: Caribbean Sea (San José, Costa Rica) — April 23, 1983

M 4.8 earthquake: Caribbean Sea (San José, Costa Rica) — April 23, 1983. Epicenter 83 km S of San José, depth 33 km, 12:25 Local (1983-04-23 18:25 UTC). Shaking felt by ~2.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Caribbean Sea (83 km S of San José, Costa Rica) — 9.212, -83.9

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