Chile earthquakes

M4.3 earthquake 93 km WSW of Coquimbo, Chile

A magnitude 4.3 earthquake struck 93 km WSW of Coquimbo, Chile on Sat, Aug 12, 2017, 5:31 PM GMT-4 (21:31 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M5.1 79 km W of Coquimbo, Chile. This one was a foreshock.

Coquimbo 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 (mwr), light
Local time
UTC
2017-08-12 21:31:18 UTC
Depth
7.7 km (4.8 mi), shallow
Epicenter
30.306° S, 72.220° 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Reverse (thrust)
Moment magnitude
4.3 Mwr
Nodal plane 1
Strike 10°, dip 39°, rake 103°
Nodal plane 2
Strike 173°, dip 52°, rake 80°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.2 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
93°
Stations used
67

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 3 in the 30 days before it.

After

  1. 5.179 km W of Coquimbo, Chile · 3329 days ago · 10 km deep · 33 km away · felt by 9
  2. 4.085 km W of Coquimbo, Chile · 3328 days ago · 12 km deep · 47 km away
  3. 4.237 km WSW of Ovalle, Chile · 3308 days ago · 49 km deep · 82 km away
  4. 4.486 km WSW of Coquimbo, Chile · 3295 days ago · 17 km deep · 11 km away
  5. 4.427 km SW of Coquimbo, Chile · 3288 days ago · 37 km deep · 67 km away · felt by 5
  6. 4.435 km W of Coquimbo, Chile · 3284 days ago · 24 km deep · 64 km away
  7. 4.221 km WSW of Ovalle, Chile · 3279 days ago · 43 km deep · 90 km away
  8. 3.98 km NNW of Coquimbo, Chile · 3278 days ago · 51 km deep · 95 km away
  9. 4.46 km SSW of Coquimbo, Chile · 3274 days ago · 51 km deep · 89 km away · felt by 8

Before

  1. 5.885 km WSW of Coquimbo, Chile · 3332 days ago · 9 km deep · 9 km away · felt by 6
  2. 4.346 km WNW of Ovalle, Chile · 3332 days ago · 32 km deep · 57 km away
  3. 4.163 km WSW of Ovalle, Chile · 3347 days ago · 17 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000a7ni. Read Sat, Sep 26, 2026, 6:47 PM UTC.