Chile earthquakes

M4.2 earthquake 91 km NNE of Calama, Chile

A magnitude 4.2 earthquake struck 91 km NNE of Calama, Chile on Sat, Sep 12, 2015, 11:43 PM GMT-3 (02:43 UTC), 138 km (86 mi) below the surface.

A larger quake followed: M5.3 33 km NE 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
4.2 (mb), light
Local time
UTC
2015-09-13 02:43:05 UTC
Depth
138.3 km (85.9 mi), intermediate-depth
Epicenter
21.715° S, 68.531° 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.

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 6.9 km horizontally, 5.7 km in depth
Magnitude uncertainty
±0.21
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.060 km NNE of Calama, Chile · 4034 days ago · 102 km deep · 32 km away
  2. 4.4107 km NNE of Calama, Chile · 4030 days ago · 127 km deep · 16 km away
  3. 4.1138 km N of Calama, Chile · 4023 days ago · 114 km deep · 58 km away
  4. 4.325 km ESE of Calama, Chile · 4003 days ago · 109 km deep · 97 km away
  5. 4.3Chile-Bolivia border region · 3998 days ago · 125 km deep · 60 km away
  6. 4.164 km NNE of Calama, Chile · 3992 days ago · 114 km deep · 27 km away
  7. 5.333 km NE of Calama, Chile · 3976 days ago · 109 km deep · 60 km away · felt by 3
  8. 4.031 km NNE of Calama, Chile · 3976 days ago · 113 km deep · 60 km away
  9. 4.1150 km NNE of Calama, Chile · 3975 days ago · 139 km deep · 65 km away

Before

  1. 4.475 km NE of Calama, Chile · 4047 days ago · 120 km deep · 21 km away
  2. 4.152 km NNE of Calama, Chile · 4047 days ago · 137 km deep · 42 km away
  3. 4.483 km NNE of Calama, Chile · 4048 days ago · 126 km deep · 8 km away
  4. 4.693 km NNE of Calama, Chile · 4054 days ago · 120 km deep · 3 km away
  5. 4.068 km NNE of Calama, Chile · 4055 days ago · 115 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20003j5e. Read Tue, Sep 29, 2026, 1:52 PM UTC.