M 4.6 earthquake near Michoacán, Mexico — 1977-07-31

Magnitude 4.6 earthquake near 46 km SW of Apatzingán (Mexico), depth 103 km, 15:47 Local (1977-07-31 21:47 UTC). Shaking felt by ~545K people. Readings from every reporting agency, affected towns, aftershock sequence.

46 km SW of Apatzingán (Mexico) — 18.9, -102.748

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