M4.1 earthquake 54 km SE of Arica, Chile
A magnitude 4.1 earthquake struck 54 km SE of Arica, Chile on Sun, Sep 16, 2018, 4:01 AM GMT-3 (07:01 UTC), 86 km (54 mi) below the surface.
A larger quake followed: M4.7 14 km S of Palca, Peru. 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
- 2018-09-16 07:01:12 UTC
- Depth
- 86.3 km (53.6 mi), intermediate-depth
- Epicenter
- 18.764° S, 69.878° 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 5.4 km horizontally, 6.9 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 123°
- Stations used
- 37
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.293 km SE of Palca, Peru · 2925 days ago · 135 km deep · 74 km away
- 4.391 km SE of Arica, Chile · 2925 days ago · 99 km deep · 37 km away · felt by 1
- 4.199 km SE of Arica, Chile · 2914 days ago · 138 km deep · 45 km away
- 4.714 km S of Palca, Peru · 2906 days ago · 114 km deep · 96 km away · felt by 4
- 4.421 km NW of Arica, Chile · 2905 days ago · 66 km deep · 76 km away · felt by 1
- 4.230 km SE of Tacna, Peru · 2891 days ago · 102 km deep · 63 km away
- 4.035 km WSW of Arica, Chile · 2885 days ago · 45 km deep · 81 km away
- 4.163 km E of Arica, Chile · 2878 days ago · 149 km deep · 47 km away · felt by 2
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000hfde. Read Fri, Oct 2, 2026, 11:14 AM UTC.