M4.1 earthquake 44 km WSW of Arica, Chile
A magnitude 4.1 earthquake struck 44 km WSW of Arica, Chile on Fri, Jul 14, 2017, 7:01 AM GMT-4 (11:01 UTC), 38 km (24 mi) below the surface.
A larger quake followed: M5.2 92 km SSE of Arica, 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 (mwr), light
- Local time
- UTC
- 2017-07-14 11:01:23 UTC
- Depth
- 38.0 km (23.6 mi), shallow
- Epicenter
- 18.643° S, 70.676° 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
- 4.1 Mwr
- Nodal plane 1
- Strike 170°, dip 71°, rake 106°
- Nodal plane 2
- Strike 308°, dip 24°, rake 51°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.0 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 144°
- Stations used
- 35
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 1 in the 30 days before it.
After
- 4.136 km E of Arica, Chile · 3348 days ago · 97 km deep · 79 km away
- 4.291 km S of Pacocha, Peru · 3322 days ago · 10 km deep · 78 km away
- 5.292 km SSE of Arica, Chile · 3313 days ago · 61 km deep · 98 km away · felt by 13
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20009wak. Read Wed, Sep 30, 2026, 8:35 PM UTC.