Chile earthquakes

M4.1 earthquake 83 km NNE of Calama, Chile

A magnitude 4.1 earthquake struck 83 km NNE of Calama, Chile on Thu, Apr 22, 2021, 6:29 PM GMT-4 (22:29 UTC), 118 km (73 mi) below the surface.

A larger quake followed: M5.2 49 km ENE of Calama, Chile. This one was a foreshock.

Calama forecastMore in Chile

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-04-22 22:29:26 UTC
Depth
117.6 km (73.1 mi), intermediate-depth
Epicenter
21.764° S, 68.616° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 6.5 km horizontally, 6.0 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
91°
Stations used
27

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.2158 km ESE of Iquique, Chile · 1983 days ago · 104 km deep · 97 km away · felt by 2
  2. 4.448 km NE of Calama, Chile · 1976 days ago · 117 km deep · 43 km away
  3. 4.4140 km NNE of Calama, Chile · 1975 days ago · 106 km deep · 58 km away · felt by 1
  4. 4.661 km NNE of Calama, Chile · 1974 days ago · 113 km deep · 22 km away · felt by 1
  5. 4.3108 km NNE of Calama, Chile · 1970 days ago · 143 km deep · 25 km away · felt by 1
  6. 4.449 km NE of Calama, Chile · 1970 days ago · 113 km deep · 43 km away · felt by 1
  7. 4.296 km NNE of Calama, Chile · 1968 days ago · 138 km deep · 14 km away · felt by 1
  8. 4.7130 km N of Calama, Chile · 1964 days ago · 119 km deep · 58 km away · felt by 11
  9. 4.1144 km N of Calama, Chile · 1964 days ago · 123 km deep · 70 km away
  10. 4.011 km NNE of Calama, Chile · 1961 days ago · 113 km deep · 72 km away
  11. 5.249 km ENE of Calama, Chile · 1961 days ago · 115 km deep · 51 km away · felt by 2
  12. 4.2159 km ESE of Iquique, Chile · 1960 days ago · 104 km deep · 94 km away · felt by 1
  13. 4.2101 km NNE of Calama, Chile · 1953 days ago · 149 km deep · 23 km away
  14. 4.083 km NNE of Calama, Chile · 1949 days ago · 139 km deep · 6 km away
  15. 4.3134 km N of Calama, Chile · 1948 days ago · 111 km deep · 60 km away
  16. 4.1130 km N of Calama, Chile · 1945 days ago · 129 km deep · 61 km away
  17. 4.031 km ENE of Calama, Chile · 1945 days ago · 114 km deep · 64 km away
  18. 4.2Chile-Bolivia border region · 1931 days ago · 135 km deep · 26 km away

Before

  1. 4.4131 km N of Calama, Chile · 1992 days ago · 117 km deep · 60 km away
  2. 4.247 km NNE of Calama, Chile · 1993 days ago · 137 km deep · 36 km away
  3. 4.181 km NNE of Calama, Chile · 1994 days ago · 118 km deep · 10 km away
  4. 4.3142 km N of Calama, Chile · 1998 days ago · 137 km deep · 65 km away
  5. 4.5144 km SW of Uyuni, Bolivia · 2000 days ago · 176 km deep · 92 km away · felt by 1
  6. 3.9151 km N of Calama, Chile · 2006 days ago · 120 km deep · 83 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000e3sm. Read Fri, Oct 2, 2026, 4:02 PM UTC.