M4.3 earthquake 144 km N of Calama, Chile
A magnitude 4.3 earthquake struck 144 km N of Calama, Chile on Sat, Feb 20, 2021, 7:07 AM GMT-3 (10:07 UTC), 131 km (82 mi) below the surface.
A larger quake followed: M4.5 150 km N of Calama, 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
- 2021-02-20 10:07:35 UTC
- Depth
- 131.2 km (81.5 mi), intermediate-depth
- Epicenter
- 21.156° S, 68.784° W
- Region
- Chile
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
2 people 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 6.6 km horizontally, 7.4 km in depth
- Depth from
- From location
- Station coverage gap
- 69°
- Stations used
- 32
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.5150 km N of Calama, Chile · 2050 days ago · 145 km deep · 12 km away · felt by 1
- 4.2106 km E of Iquique, Chile · 2044 days ago · 108 km deep · 97 km away · felt by 4
- 4.2119 km SE of Iquique, Chile · 2010 days ago · 84 km deep · 58 km away · felt by 2
- 3.9151 km N of Calama, Chile · 2005 days ago · 120 km deep · 20 km away · felt by 1
- 4.5144 km SW of Uyuni, Bolivia · 2000 days ago · 176 km deep · 84 km away · felt by 1
- 4.3142 km N of Calama, Chile · 1998 days ago · 137 km deep · 8 km away
- 4.181 km NNE of Calama, Chile · 1994 days ago · 118 km deep · 66 km away
- 4.4131 km N of Calama, Chile · 1992 days ago · 117 km deep · 15 km away
Before
- 4.361 km NE of Calama, Chile · 2051 days ago · 135 km deep · 97 km away · felt by 1
- 4.1159 km WSW of Colchani, Bolivia · 2054 days ago · 165 km deep · 59 km away
- 4.2136 km SE of Iquique, Chile · 2063 days ago · 108 km deep · 42 km away · felt by 2
- 4.4139 km WSW of Uyuni, Bolivia · 2067 days ago · 167 km deep · 86 km away
- 4.1149 km N of Calama, Chile · 2070 days ago · 127 km deep · 13 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000djnu. Read Fri, Oct 2, 2026, 3:02 PM UTC.