M 4.6 earthquake: Ionian Sea (Pirgos, Greece) — September 18, 1975

M 4.6 earthquake: Ionian Sea (Pirgos, Greece) — September 18, 1975. Epicenter 111 km NW of Pirgos, depth 43 km, 02:44 Local (1975-09-17 23:44 UTC). Shaking felt by ~69K people. Readings from every reporting agency, affected towns, aftershock sequence.

Ionian Sea (111 km NW of Pirgos, Greece) — 38.168, 20.337

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