M4.6 earthquake 166 km W of Copiapó, Chile
A magnitude 4.6 earthquake struck 166 km W of Copiapó, Chile on Sat, Jan 25, 1986, 6:29 AM GMT-3 (09:29 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.0 161 km NW of Vallenar, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1986-01-25 09:29:27 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 27.207° S, 72.006° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002qdn. Read Sat, Sep 26, 2026, 12:18 PM UTC.