M4.6 earthquake 82 km WNW of Valparaíso, Chile
A magnitude 4.6 earthquake struck 82 km WNW of Valparaíso, Chile on Fri, Dec 27, 1985, 7:41 PM GMT-3 (22:41 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 26 km W of Valparaíso, 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
- 1985-12-27 22:41:51 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 32.805° S, 72.472° 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: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.826 km W of Valparaíso, Chile · 14877 days ago · 49 km deep · 58 km away
- 4.391 km W of Cartagena, Chile · 14872 days ago · 33 km deep · 83 km away
- 4.352 km NW of Valparaíso, Chile · 14862 days ago · 33 km deep · 43 km away
- 4.577 km W of San Antonio, Chile · 14842 days ago · 18 km deep · 87 km away
- 4.764 km W of Cartagena, Chile · 14833 days ago · 33 km deep · 77 km away
- 4.373 km W of Cartagena, Chile · 14833 days ago · 33 km deep · 76 km away
- 4.546 km NW of Valparaíso, Chile · 14826 days ago · 33 km deep · 43 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002pgc. Read Wed, Sep 23, 2026, 12:44 PM UTC.