Chile earthquakes

M4.1 earthquake 47 km ESE of Arica, Chile

A magnitude 4.1 earthquake struck 47 km ESE of Arica, Chile on Thu, Oct 12, 2017, 10:45 AM GMT-3 (13:45 UTC), 102 km (64 mi) below the surface.

A larger quake followed: M4.7 84 km S of Arica, Chile. This one was a foreshock.

Arica 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), light
Local time
UTC
2017-10-12 13:45:12 UTC
Depth
102.3 km (63.6 mi), intermediate-depth
Epicenter
18.605° S, 69.871° 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 7.5 km horizontally, 7.9 km in depth
Magnitude uncertainty
±0.20
Depth from
From location
Station coverage gap
80°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 3.938 km ESE of Arica, Chile · 3272 days ago · 89 km deep · 10 km away
  2. 4.312 km E of Palca, Peru · 3240 days ago · 153 km deep · 95 km away
  3. 4.784 km S of Arica, Chile · 3216 days ago · 62 km deep · 81 km away · felt by 3

Before

  1. 4.856 km ESE of Arica, Chile · 3278 days ago · 94 km deep · 10 km away
  2. 4.459 km ESE of Arica, Chile · 3278 days ago · 91 km deep · 13 km away
  3. 6.358 km E of Arica, Chile · 3278 days ago · 85 km deep · 13 km away · felt by 82
  4. 3.977 km ESE of Palca, Peru · 3294 days ago · 147 km deep · 90 km away
  5. 4.723 km SE of Tacna, Peru · 3297 days ago · 98 km deep · 56 km away · felt by 1
  6. 4.1114 km NE of Iquique, Chile · 3299 days ago · 98 km deep · 95 km away
  7. 4.363 km ESE of Palca, Peru · 3304 days ago · 143 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000aqph. Read Thu, Oct 1, 2026, 12:44 AM UTC.