M4.3 earthquake 40 km W of Santa Cruz, Chile
A magnitude 4.3 earthquake struck 40 km W of Santa Cruz, Chile on Sun, Jan 10, 2021, 5:15 AM GMT-3 (08:15 UTC), 42 km (26 mi) below the surface.
A larger quake followed: M4.7 12 km SE of Teno, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-01-10 08:15:19 UTC
- Depth
- 41.5 km (25.8 mi), shallow
- Epicenter
- 34.679° S, 71.810° W
- Region
- Chile
- Felt reports
- 6
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
6 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique reverse
- Moment magnitude
- 4.3 Mwr
- Nodal plane 1
- Strike 31°, dip 27°, rake 128°
- Nodal plane 2
- Strike 170°, dip 69°, rake 73°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.9 km horizontally, 5.2 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 70°
- Stations used
- 67
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.712 km SE of Teno, Chile · 2086 days ago · 94 km deep · 74 km away · felt by 4
- 4.24 km ESE of Constitución, Chile · 2049 days ago · 35 km deep · 91 km away · felt by 4
- 3.9Off the coast of Valparaiso, Chile · 2047 days ago · 22 km deep · 96 km away · felt by 1
- 4.49 km SSE of Curicó, Chile · 2040 days ago · 102 km deep · 70 km away · felt by 3
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000d77g. Read Sun, Oct 4, 2026, 12:21 AM UTC.