M4.2 earthquake 66 km WNW of Taltal, Chile
A magnitude 4.2 earthquake struck 66 km WNW of Taltal, Chile on Wed, Feb 17, 2021, 12:25 AM GMT-3 (03:25 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.3 43 km WNW of Taltal, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-02-17 03:25:29 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 25.094° S, 71.051° 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.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 4.2 Mwr
- Nodal plane 1
- Strike 356°, dip 62°, rake 91°
- Nodal plane 2
- Strike 175°, dip 28°, rake 89°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.8 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 144°
- Stations used
- 61
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 3 in the 30 days before it.
After
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000diaa. Read Sat, Oct 3, 2026, 11:06 PM UTC.