M4.0 earthquake 60 km SW of Coquimbo, Chile
A magnitude 4.0 earthquake struck 60 km SW of Coquimbo, Chile on Sat, Sep 1, 2018, 5:51 PM GMT-3 (20:51 UTC), 28 km (18 mi) below the surface.
A larger quake followed: M4.7 49 km W 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
- 2018-09-01 20:51:38 UTC
- Depth
- 28.5 km (17.7 mi), shallow
- Epicenter
- 30.312° S, 71.815° 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
- Oblique reverse
- Moment magnitude
- 4.0 Mwr
- Nodal plane 1
- Strike 24°, dip 48°, rake 130°
- Nodal plane 2
- Strike 152°, dip 55°, rake 54°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.6 km horizontally, 4.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 134°
- Stations used
- 46
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 8 in the 30 days before it.
After
- 3.936 km SSW of Ovalle, Chile · 2931 days ago · 47 km deep · 76 km away
- 4.634 km SSW of Coquimbo, Chile · 2922 days ago · 42 km deep · 31 km away
- 4.141 km W of Coquimbo, Chile · 2921 days ago · 23 km deep · 35 km away
- 4.653 km W of Ovalle, Chile · 2913 days ago · 31 km deep · 36 km away · felt by 1
- 4.337 km NW of Coquimbo, Chile · 2896 days ago · 35 km deep · 72 km away
- 4.749 km W of Ovalle, Chile · 2895 days ago · 35 km deep · 33 km away · felt by 7
Before
- 4.029 km NNW of La Serena, Chile · 2953 days ago · 34 km deep · 81 km away
- 5.226 km NNW of La Serena, Chile · 2953 days ago · 35 km deep · 82 km away · felt by 18
- 5.032 km NW of Coquimbo, Chile · 2954 days ago · 55 km deep · 71 km away · felt by 14
- 4.2108 km WSW of Ovalle, Chile · 2954 days ago · 18 km deep · 90 km away
- 4.033 km WSW of Ovalle, Chile · 2959 days ago · 42 km deep · 50 km away
- 4.248 km SW of Ovalle, Chile · 2961 days ago · 76 km deep · 68 km away
- 4.427 km WSW of Coquimbo, Chile · 2964 days ago · 35 km deep · 33 km away
- 4.125 km NNW of La Serena, Chile · 2969 days ago · 45 km deep · 80 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000h6lr. Read Mon, Sep 28, 2026, 6:39 AM UTC.