M4.5 earthquake 99 km W of Illapel, Chile
A magnitude 4.5 earthquake struck 99 km W of Illapel, Chile on Tue, Aug 9, 2016, 1:56 PM GMT-4 (17:56 UTC), 18 km (11 mi) below the surface.
A larger quake followed: M4.8 41 km N of La Ligua, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mwr), light
- Local time
- UTC
- 2016-08-09 17:56:13 UTC
- Depth
- 17.6 km (10.9 mi), shallow
- Epicenter
- 31.734° S, 72.214° 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
- 4.5 Mwr
- Nodal plane 1
- Strike 357°, dip 46°, rake 92°
- Nodal plane 2
- Strike 175°, dip 44°, rake 88°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.3 km horizontally, 3.9 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 76°
- Stations used
- 81
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.558 km SW of Illapel, Chile · 3696 days ago · 32 km deep · 58 km away
- 4.841 km N of La Ligua, Chile · 3696 days ago · 84 km deep · 98 km away · felt by 9
- 3.854 km W of La Ligua, Chile · 3693 days ago · 35 km deep · 84 km away
- 4.388 km WNW of La Ligua, Chile · 3673 days ago · 8 km deep · 45 km away
- 4.255 km SW of Illapel, Chile · 3669 days ago · 67 km deep · 61 km away
- 4.939 km WNW of La Ligua, Chile · 3668 days ago · 30 km deep · 86 km away · felt by 4
- 3.879 km W of Illapel, Chile · 3662 days ago · 35 km deep · 27 km away
- 4.078 km NW of La Ligua, Chile · 3651 days ago · 42 km deep · 45 km away
- 4.661 km NW of La Ligua, Chile · 3644 days ago · 16 km deep · 61 km away
Before
- 5.046 km W of Illapel, Chile · 3698 days ago · 30 km deep · 56 km away
- 4.0110 km W of Illapel, Chile · 3699 days ago · 10 km deep · 11 km away
- 4.3104 km W of Illapel, Chile · 3700 days ago · 10 km deep · 6 km away
- 4.637 km WNW of Illapel, Chile · 3708 days ago · 42 km deep · 66 km away
- 4.366 km W of Illapel, Chile · 3708 days ago · 32 km deep · 33 km away
- 4.187 km NW of Illapel, Chile · 3714 days ago · 35 km deep · 68 km away
- 4.329 km WSW of Illapel, Chile · 3723 days ago · 43 km deep · 72 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006cds. Read Wed, Sep 23, 2026, 5:47 PM UTC.