M 6.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — March 11, 1931

M 6.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — March 11, 1931. Epicenter 930 km N of Capitol Hill, depth 35 km, 22:26 Local (1931-03-11 12:26 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (930 km N of Capitol Hill, Northern Mariana Islands) — 23.324, 143.583

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