M 4.5 earthquake in Argentina (San Luis) — February 28, 1977

M 4.5 earthquake in Argentina (San Luis) — February 28, 1977. Epicenter 58 km NW of San Luis, depth 188 km, 06:37 Local (1977-02-28 09:37 UTC). Shaking felt by ~105K people. Readings from every reporting agency, affected towns, aftershock sequence.

58 km NW of San Luis (Argentina) — -32.968, -66.824