M 4.6 earthquake near Bío-Bío, Chile — 1981-07-31

Magnitude 4.6 earthquake near 198 km E of Concepción (Chile), depth 144 km, 09:27 Local (1981-07-31 12:27 UTC). Shaking felt by ~63K people. Readings from every reporting agency, affected towns, aftershock sequence.

198 km E of Concepción (Chile) — -37.094, -70.842