M 4.9 earthquake: Indian Ocean (Yemen) — April 20, 1975

M 4.9 earthquake: Indian Ocean (Yemen) — April 20, 1975. Epicenter 300 km NE of Hadiboh, depth 33 km, 01:29 Local (1975-04-19 21:29 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Indian Ocean (300 km NE, Yemen) — 14.389, 56.148

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