M4.0 earthquake 110 km W of Illapel, Chile
A magnitude 4.0 earthquake struck 110 km W of Illapel, Chile on Mon, Aug 8, 2016, 12:19 AM GMT-4 (04:19 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.0 46 km W of Illapel, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mwr), light
- Local time
- UTC
- 2016-08-08 04:19:42 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 31.717° S, 72.328° 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
- 4.0 Mwr
- Nodal plane 1
- Strike 358°, dip 57°, rake 92°
- Nodal plane 2
- Strike 175°, dip 33°, rake 88°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.3 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 187°, poorly surrounded by stations
- Stations used
- 40
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 5 in the 30 days before it.
After
- 5.046 km W of Illapel, Chile · 3699 days ago · 30 km deep · 65 km away
- 4.599 km W of Illapel, Chile · 3698 days ago · 18 km deep · 11 km away
- 4.558 km SW of Illapel, Chile · 3697 days ago · 32 km deep · 69 km away
- 3.854 km W of La Ligua, Chile · 3694 days ago · 35 km deep · 91 km away
- 4.388 km WNW of La Ligua, Chile · 3674 days ago · 8 km deep · 50 km away
- 4.255 km SW of Illapel, Chile · 3670 days ago · 67 km deep · 72 km away
- 4.939 km WNW of La Ligua, Chile · 3669 days ago · 30 km deep · 95 km away · felt by 4
- 3.879 km W of Illapel, Chile · 3663 days ago · 35 km deep · 35 km away
- 4.078 km NW of La Ligua, Chile · 3651 days ago · 42 km deep · 54 km away
- 4.661 km NW of La Ligua, Chile · 3645 days ago · 16 km deep · 71 km away
Before
- 4.3104 km W of Illapel, Chile · 3701 days ago · 10 km deep · 8 km away
- 4.637 km WNW of Illapel, Chile · 3709 days ago · 42 km deep · 76 km away
- 4.366 km W of Illapel, Chile · 3709 days ago · 32 km deep · 44 km away
- 4.187 km NW of Illapel, Chile · 3715 days ago · 35 km deep · 72 km away
- 4.329 km WSW of Illapel, Chile · 3724 days ago · 43 km deep · 83 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006c05. Read Thu, Sep 24, 2026, 2:14 PM UTC.