M 5.5 Earthquake: Caribbean Sea (San José, Costa Rica) — December 20, 1976

M 5.5 Earthquake: Caribbean Sea (San José, Costa Rica) — December 20, 1976. Epicenter 76 km S of San José, depth 66 km, 04:18 Local (1976-12-20 10:18 UTC). Shaking felt by ~4.5M people. Readings from every reporting agency, affected towns, aftershock sequence.

Caribbean Sea (76 km S of San José, Costa Rica) — 9.27, -83.932

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