M 4.9 earthquake: Philippine Sea (Keelung, Taiwan) — May 31, 1991

M 4.9 earthquake: Philippine Sea (Keelung, Taiwan) — May 31, 1991. Epicenter 164 km SE of Keelung, depth 42 km, 05:35 Local (1991-05-30 21:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (164 km SE of Keelung, Taiwan) — 24.086, 122.872

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