M4.1 earthquake 99 km SE of Arica, Chile
A magnitude 4.1 earthquake struck 99 km SE of Arica, Chile on Wed, Oct 10, 2018, 2:41 PM GMT-3 (17:41 UTC), 138 km (86 mi) below the surface.
A larger quake followed: M6.2 115 km NE of Iquique, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-10-10 17:41:39 UTC
- Depth
- 137.7 km (85.6 mi), intermediate-depth
- Epicenter
- 18.993° S, 69.524° 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 6.3 km horizontally, 6.8 km in depth
- Magnitude uncertainty
- ±0.23
- Depth from
- From location
- Station coverage gap
- 104°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 6.2115 km NE of Iquique, Chile · 2891 days ago · 102 km deep · 71 km away · felt by 69
- 4.794 km NE of Iquique, Chile · 2887 days ago · 87 km deep · 82 km away · felt by 5
- 4.163 km E of Arica, Chile · 2878 days ago · 149 km deep · 71 km away · felt by 2
- 4.5136 km NE of Iquique, Chile · 2866 days ago · 106 km deep · 61 km away
Before
- 4.391 km SE of Arica, Chile · 2925 days ago · 99 km deep · 9 km away · felt by 1
- 4.293 km SE of Palca, Peru · 2925 days ago · 135 km deep · 74 km away
- 4.154 km SE of Arica, Chile · 2938 days ago · 86 km deep · 45 km away
- 4.6144 km SE of Arica, Chile · 2940 days ago · 101 km deep · 45 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000ha51. Read Fri, Oct 2, 2026, 6:01 AM UTC.