M 4.5 earthquake: Philippine Sea (Hualien, Taiwan) — April 22, 1983

M 4.5 earthquake: Philippine Sea (Hualien, Taiwan) — April 22, 1983. Epicenter 83 km E of Hualien, depth 33 km, 14:49 Local (1983-04-22 06:49 UTC). Shaking felt by ~1.8M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (83 km E of Hualien, Taiwan) — 23.997, 122.414

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