M4.1 earthquake 88 km NW of Vallenar, Chile
A magnitude 4.1 earthquake struck 88 km NW of Vallenar, Chile on Wed, Aug 17, 2016, 10:00 AM GMT-3 (13:00 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M4.6 94 km WSW of Copiapó, 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
- 2016-08-17 13:00:21 UTC
- Depth
- 24.2 km (15.0 mi), shallow
- Epicenter
- 27.918° S, 71.265° 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 158°, dip 48°, rake 67°
- Nodal plane 2
- Strike 10°, dip 47°, rake 113°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.7 km horizontally, 5.1 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 156°
- Stations used
- 47
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.342 km WSW of Copiapó, Chile · 3693 days ago · 55 km deep · 69 km away
- 4.694 km WSW of Copiapó, Chile · 3682 days ago · 35 km deep · 27 km away
- 4.192 km NW of Vallenar, Chile · 3657 days ago · 23 km deep · 5 km away
- 4.550 km NW of Vallenar, Chile · 3650 days ago · 52 km deep · 44 km away · felt by 1
- 4.426 km NNE of Vallenar, Chile · 3639 days ago · 99 km deep · 73 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006eer. Read Mon, Sep 28, 2026, 2:51 AM UTC.