M4.4 earthquake 27 km SW of Coquimbo, Chile
A magnitude 4.4 earthquake struck 27 km SW of Coquimbo, Chile on Mon, Sep 25, 2017, 4:27 AM GMT-3 (07:27 UTC), 37 km (23 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
- 4.4 (mwr), light
- Local time
- UTC
- 2017-09-25 07:27:12 UTC
- Depth
- 37.5 km (23.3 mi), shallow
- Epicenter
- 30.100° S, 71.563° W
- Region
- Chile
- Felt reports
- 5
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
5 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

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
- 4.4 Mwr
- Nodal plane 1
- Strike 10°, dip 39°, rake 111°
- Nodal plane 2
- Strike 164°, dip 54°, rake 74°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.7 km horizontally, 5.4 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 87°
- Stations used
- 75
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.250 km N of La Serena, Chile · 3286 days ago · 39 km deep · 76 km away · felt by 8
- 4.435 km W of Coquimbo, Chile · 3284 days ago · 24 km deep · 22 km away
- 4.221 km WSW of Ovalle, Chile · 3280 days ago · 43 km deep · 68 km away
- 3.98 km NNW of Coquimbo, Chile · 3278 days ago · 51 km deep · 31 km away
- 4.46 km SSW of Coquimbo, Chile · 3274 days ago · 51 km deep · 22 km away · felt by 8
- 4.411 km WSW of Ovalle, Chile · 3264 days ago · 50 km deep · 66 km away
- 4.3101 km WSW of Coquimbo, Chile · 3261 days ago · 8 km deep · 75 km away · felt by 2
- 4.093 km WSW of Coquimbo, Chile · 3258 days ago · 10 km deep · 67 km away
- 4.271 km W of Ovalle, Chile · 3256 days ago · 18 km deep · 62 km away
- 4.236 km WSW of Ovalle, Chile · 3252 days ago · 43 km deep · 68 km away
- 4.467 km WSW of Coquimbo, Chile · 3246 days ago · 13 km deep · 44 km away
- 4.552 km NNW of La Serena, Chile · 3245 days ago · 37 km deep · 75 km away · felt by 14
- 4.923 km WSW of Ovalle, Chile · 3244 days ago · 45 km deep · 68 km away · felt by 27
- 4.2103 km WNW of Coquimbo, Chile · 3235 days ago · 25 km deep · 94 km away
- 4.144 km SW of Coquimbo, Chile · 3232 days ago · 36 km deep · 21 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000au5p. Read Sat, Sep 26, 2026, 8:01 PM UTC.