Chile earthquakes

M4.0 earthquake 161 km NNE of Calama, Chile

A magnitude 4.0 earthquake struck 161 km NNE of Calama, Chile on Sat, Aug 12, 2017, 6:34 PM GMT-4 (22:34 UTC), 136 km (85 mi) below the surface.

A larger quake followed: M4.7 131 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
4.0 (mb), light
Local time
UTC
2017-08-12 22:34:58 UTC
Depth
136.4 km (84.8 mi), intermediate-depth
Epicenter
21.062° S, 68.469° 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 6.4 km horizontally, 6.9 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
45°
Stations used
39

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.2100 km NNE of Calama, Chile · 3334 days ago · 127 km deep · 66 km away
  2. 4.1138 km NNE of Calama, Chile · 3329 days ago · 122 km deep · 23 km away
  3. 4.3132 km E of Iquique, Chile · 3328 days ago · 97 km deep · 94 km away
  4. 4.5132 km N of Calama, Chile · 3320 days ago · 121 km deep · 41 km away
  5. 4.1153 km N of Calama, Chile · 3314 days ago · 114 km deep · 33 km away
  6. 4.4130 km ESE of Iquique, Chile · 3311 days ago · 111 km deep · 70 km away
  7. 3.8124 km ESE of Iquique, Chile · 3298 days ago · 108 km deep · 78 km away
  8. 4.7131 km NNE of Calama, Chile · 3291 days ago · 116 km deep · 37 km away
  9. 4.2128 km E of Iquique, Chile · 3279 days ago · 102 km deep · 86 km away
  10. 4.7139 km N of Calama, Chile · 3279 days ago · 123 km deep · 33 km away

Before

  1. 4.4107 km NNE of Calama, Chile · 3336 days ago · 117 km deep · 55 km away
  2. 4.0123 km ESE of Iquique, Chile · 3338 days ago · 93 km deep · 76 km away
  3. 4.3137 km NNE of Calama, Chile · 3342 days ago · 128 km deep · 26 km away
  4. 4.0130 km N of Calama, Chile · 3342 days ago · 123 km deep · 39 km away
  5. 4.1116 km NNE of Calama, Chile · 3344 days ago · 144 km deep · 47 km away · felt by 1
  6. 4.280 km NNE of Calama, Chile · 3347 days ago · 120 km deep · 87 km away
  7. 4.676 km NE of Calama, Chile · 3356 days ago · 114 km deep · 93 km away
  8. 5.3142 km NE of Tocopilla, Chile · 3358 days ago · 39 km deep · 81 km away · felt by 6
  9. 3.9121 km NNE of Calama, Chile · 3358 days ago · 146 km deep · 42 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000a7pa. Read Wed, Sep 30, 2026, 10:18 PM UTC.