M4.0 earthquake 61 km SW of Constitución, Chile
A magnitude 4.0 earthquake struck 61 km SW of Constitución, Chile on Sun, Feb 21, 2021, 8:56 AM GMT-3 (11:56 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M4.2 4 km ESE of Constitución, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-02-21 11:56:47 UTC
- Depth
- 23.6 km (14.7 mi), shallow
- Epicenter
- 35.700° S, 72.923° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.6 km horizontally, 10.5 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- From location
- Station coverage gap
- 168°
- Stations used
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 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 us6000djvs. Read Sun, Oct 4, 2026, 8:58 AM UTC.