M 4.6 earthquake near Bío-Bío, Chile — 1981-07-17

Magnitude 4.6 earthquake near 73 km SW of Concepción (Chile), depth 33 km, 02:58 Local (1981-07-17 06:58 UTC). Shaking felt by ~405K people. Readings from every reporting agency, affected towns, aftershock sequence.

73 km SW of Concepción (Chile) — -37.411, -73.425