Chile earthquakes

M4.3 earthquake 114 km NNE of Calama, Chile

A magnitude 4.3 earthquake struck 114 km NNE of Calama, Chile on Mon, Apr 23, 2018, 9:57 AM GMT-3 (12:57 UTC), 136 km (85 mi) below the surface.

A larger quake followed: M4.7 135 km NNE 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-04-23 12:57:51 UTC
Depth
136.3 km (84.7 mi), intermediate-depth
Epicenter
21.501° S, 68.509° 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 7.6 km horizontally, 8.4 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
60°
Stations used
21

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 4 in the 30 days before it.

After

  1. 4.4153 km NNE of Calama, Chile · 3082 days ago · 135 km deep · 44 km away
  2. 4.495 km NE of Calama, Chile · 3082 days ago · 130 km deep · 33 km away
  3. 4.288 km NNE of Calama, Chile · 3079 days ago · 120 km deep · 29 km away
  4. 4.059 km NNE of Calama, Chile · 3071 days ago · 102 km deep · 56 km away
  5. 4.3100 km NNE of Calama, Chile · 3067 days ago · 119 km deep · 23 km away
  6. 4.5100 km NE of Calama, Chile · 3065 days ago · 147 km deep · 28 km away
  7. 4.054 km NE of Calama, Chile · 3064 days ago · 120 km deep · 62 km away
  8. 4.7135 km NNE of Calama, Chile · 3054 days ago · 114 km deep · 30 km away
  9. 4.6111 km NNE of Calama, Chile · 3053 days ago · 124 km deep · 16 km away
  10. 4.2130 km WSW of Colchani, Bolivia · 3051 days ago · 195 km deep · 84 km away
  11. 4.255 km NNE of Calama, Chile · 3043 days ago · 128 km deep · 61 km away
  12. 4.1120 km N of Calama, Chile · 3042 days ago · 123 km deep · 44 km away
  13. 4.566 km NNE of Calama, Chile · 3042 days ago · 106 km deep · 49 km away
  14. 4.2103 km NNE of Calama, Chile · 3040 days ago · 126 km deep · 12 km away
  15. 4.4131 km ESE of Iquique, Chile · 3038 days ago · 102 km deep · 94 km away
  16. 4.0108 km NNE of Calama, Chile · 3035 days ago · 139 km deep · 10 km away
  17. 4.2131 km N of Calama, Chile · 3035 days ago · 133 km deep · 45 km away
  18. 4.2123 km N of Calama, Chile · 3034 days ago · 138 km deep · 33 km away

Before

  1. 4.358 km NE of Calama, Chile · 3085 days ago · 116 km deep · 59 km away
  2. 5.0114 km N of Calama, Chile · 3089 days ago · 104 km deep · 37 km away · felt by 2
  3. 4.4106 km NNE of Calama, Chile · 3092 days ago · 135 km deep · 10 km away
  4. 4.3153 km N of Calama, Chile · 3095 days ago · 155 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000dvyx. Read Thu, Oct 1, 2026, 6:28 AM UTC.