M4.5 earthquake 79 km W of Coquimbo, Chile
A magnitude 4.5 earthquake struck 79 km W of Coquimbo, Chile on Mon, Oct 31, 2016, 6:04 PM GMT-3 (21:04 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M5.2 44 km WNW of Ovalle, 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
- 2016-10-31 21:04:52 UTC
- Depth
- 7.7 km (4.8 mi), shallow
- Epicenter
- 29.848° S, 72.152° 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 13°, dip 38°, rake 108°
- Nodal plane 2
- Strike 170°, dip 54°, rake 76°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.1 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 94°
- Stations used
- 71
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.077 km WSW of Coquimbo, Chile · 3603 days ago · 31 km deep · 30 km away
- 4.4Near the coast of Coquimbo, Chile · 3600 days ago · 29 km deep · 47 km away
- 4.2Near the coast of Coquimbo, Chile · 3590 days ago · 48 km deep · 66 km away
- 4.395 km WSW of Coquimbo, Chile · 3587 days ago · 11 km deep · 53 km away
- 4.5100 km WSW of Coquimbo, Chile · 3587 days ago · 10 km deep · 54 km away · felt by 1
- 3.930 km NW of La Serena, Chile · 3572 days ago · 43 km deep · 70 km away
- 4.144 km WNW of Ovalle, Chile · 3570 days ago · 31 km deep · 83 km away
- 5.244 km WNW of Ovalle, Chile · 3567 days ago · 36 km deep · 82 km away · felt by 5
- 4.053 km WNW of Ovalle, Chile · 3567 days ago · 35 km deep · 74 km away
- 4.140 km SSW of Coquimbo, Chile · 3567 days ago · 34 km deep · 72 km away
- 3.845 km W of Coquimbo, Chile · 3565 days ago · 22 km deep · 34 km away
- 4.150 km NW of Coquimbo, Chile · 3560 days ago · 35 km deep · 48 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100073b4. Read Wed, Sep 23, 2026, 3:33 AM UTC.