M4.0 earthquake 93 km WSW of Coquimbo, Chile
A magnitude 4.0 earthquake struck 93 km WSW of Coquimbo, Chile on Wed, Oct 25, 2017, 5:48 AM GMT-3 (08:48 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 23 km WSW 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
- 4.0 (mwr), light
- Local time
- UTC
- 2017-10-25 08:48:25 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 30.353° S, 72.196° 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 13°, dip 34°, rake 101°
- Nodal plane 2
- Strike 180°, dip 57°, rake 83°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.9 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 193°, poorly surrounded by stations
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.271 km W of Ovalle, Chile · 3260 days ago · 18 km deep · 33 km away
- 4.2138 km WSW of Coquimbo, Chile · 3258 days ago · 10 km deep · 48 km away
- 4.236 km WSW of Ovalle, Chile · 3256 days ago · 43 km deep · 73 km away
- 4.257 km SW of Ovalle, Chile · 3254 days ago · 56 km deep · 96 km away
- 4.467 km WSW of Coquimbo, Chile · 3250 days ago · 13 km deep · 31 km away
- 4.923 km WSW of Ovalle, Chile · 3247 days ago · 45 km deep · 84 km away · felt by 27
- 4.2103 km WNW of Coquimbo, Chile · 3239 days ago · 25 km deep · 89 km away
- 4.144 km SW of Coquimbo, Chile · 3236 days ago · 36 km deep · 57 km away
- 4.368 km W of Coquimbo, Chile · 3219 days ago · 22 km deep · 55 km away
- 4.470 km W of Coquimbo, Chile · 3218 days ago · 27 km deep · 54 km away
- 4.249 km W of Ovalle, Chile · 3210 days ago · 36 km deep · 57 km away
Before
- 4.3101 km WSW of Coquimbo, Chile · 3265 days ago · 8 km deep · 9 km away · felt by 2
- 4.411 km WSW of Ovalle, Chile · 3268 days ago · 50 km deep · 92 km away
- 4.178 km SW of Ovalle, Chile · 3275 days ago · 21 km deep · 90 km away · felt by 3
- 4.46 km SSW of Coquimbo, Chile · 3278 days ago · 51 km deep · 89 km away · felt by 8
- 3.98 km NNW of Coquimbo, Chile · 3282 days ago · 51 km deep · 96 km away
- 4.221 km WSW of Ovalle, Chile · 3283 days ago · 43 km deep · 86 km away
- 4.435 km W of Coquimbo, Chile · 3288 days ago · 24 km deep · 66 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000awl2. Read Wed, Sep 30, 2026, 6:24 PM UTC.