Chile earthquakes

M4.1 earthquake 81 km NNE of Calama, Chile

A magnitude 4.1 earthquake struck 81 km NNE of Calama, Chile on Sat, Apr 17, 2021, 7:20 PM GMT-4 (23:20 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
2021-04-17 23:20:28 UTC
Depth
117.6 km (73.1 mi), intermediate-depth
Epicenter
21.747° S, 68.708° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.9 km horizontally, 6.5 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
64°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.247 km NNE of Calama, Chile · 1993 days ago · 137 km deep · 36 km away
  2. 4.4131 km N of Calama, Chile · 1992 days ago · 117 km deep · 55 km away
  3. 4.183 km NNE of Calama, Chile · 1989 days ago · 118 km deep · 10 km away · felt by 1
  4. 4.2158 km ESE of Iquique, Chile · 1983 days ago · 104 km deep · 93 km away · felt by 2
  5. 4.448 km NE of Calama, Chile · 1976 days ago · 117 km deep · 47 km away
  6. 4.4140 km NNE of Calama, Chile · 1975 days ago · 106 km deep · 59 km away · felt by 1
  7. 4.661 km NNE of Calama, Chile · 1974 days ago · 113 km deep · 20 km away · felt by 1
  8. 4.3108 km NNE of Calama, Chile · 1970 days ago · 143 km deep · 30 km away · felt by 1
  9. 4.449 km NE of Calama, Chile · 1970 days ago · 113 km deep · 47 km away · felt by 1
  10. 4.296 km NNE of Calama, Chile · 1968 days ago · 138 km deep · 21 km away · felt by 1
  11. 4.7130 km N of Calama, Chile · 1964 days ago · 119 km deep · 54 km away · felt by 11
  12. 4.1144 km N of Calama, Chile · 1964 days ago · 123 km deep · 66 km away
  13. 4.011 km NNE of Calama, Chile · 1961 days ago · 113 km deep · 71 km away
  14. 5.249 km ENE of Calama, Chile · 1961 days ago · 115 km deep · 55 km away · felt by 2
  15. 4.2159 km ESE of Iquique, Chile · 1960 days ago · 104 km deep · 90 km away · felt by 1
  16. 4.2101 km NNE of Calama, Chile · 1953 days ago · 149 km deep · 31 km away
  17. 4.083 km NNE of Calama, Chile · 1949 days ago · 139 km deep · 4 km away
  18. 4.3134 km N of Calama, Chile · 1948 days ago · 111 km deep · 56 km away
  19. 4.1130 km N of Calama, Chile · 1945 days ago · 129 km deep · 55 km away
  20. 4.031 km ENE of Calama, Chile · 1945 days ago · 114 km deep · 67 km away

Before

  1. 4.3142 km N of Calama, Chile · 1998 days ago · 137 km deep · 62 km away
  2. 4.5144 km SW of Uyuni, Bolivia · 2000 days ago · 176 km deep · 98 km away · felt by 1
  3. 3.9151 km N of Calama, Chile · 2006 days ago · 120 km deep · 78 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000e2h1. Read Fri, Oct 2, 2026, 4:02 PM UTC.