M4.1 earthquake 41 km NNW of La Serena, Chile
A magnitude 4.1 earthquake struck 41 km NNW of La Serena, Chile on Wed, Dec 22, 2021, 3:20 PM GMT-3 (18:20 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M4.6 73 km W of Coquimbo, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (ML, local (Richter)), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-12-22 18:20:31 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 29.556° S, 71.396° 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 II, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- Operator assigned
- Station coverage gap
- 179°
- Stations used
- 42
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 5 in the 30 days before it.
After
- 4.673 km W of Coquimbo, Chile · 1722 days ago · 10 km deep · 82 km away
- 4.562 km W of Coquimbo, Chile · 1707 days ago · 9 km deep · 68 km away
- 4.238 km NNW of La Serena, Chile · 1699 days ago · 47 km deep · 5 km away
- 4.017 km NE of La Serena, Chile · 1691 days ago · 83 km deep · 39 km away · felt by 3
Before
- 4.631 km WSW of Coquimbo, Chile · 1748 days ago · 25 km deep · 58 km away
- 4.239 km S of Vallenar, Chile · 1750 days ago · 110 km deep · 93 km away
- 5.578 km W of Vallenar, Chile · 1756 days ago · 18 km deep · 98 km away · felt by 22
- 5.742 km N of La Serena, Chile · 1758 days ago · 45 km deep · 10 km away · felt by 47
- 4.449 km WNW of Coquimbo, Chile · 1765 days ago · 46 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000gemg. Read Sun, Oct 4, 2026, 10:45 PM UTC.