M4.0 earthquake 90 km W of Coquimbo, Chile
A magnitude 4.0 earthquake struck 90 km W of Coquimbo, Chile on Mon, Feb 20, 2017, 7:18 AM GMT-3 (10:18 UTC), 52 km (32 mi) below the surface.
A larger quake followed: M5.2 84 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 (mb), light
- Local time
- UTC
- 2017-02-20 10:18:18 UTC
- Depth
- 52.0 km (32.3 mi), shallow
- Epicenter
- 30.070° S, 72.266° 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.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.5 km horizontally, 25.7 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 186°, poorly surrounded by stations
- Stations used
- 37
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 6 in the 30 days before it.
After
- 3.754 km WNW of Ovalle, Chile · 3490 days ago · 28 km deep · 63 km away
- 5.284 km W of Ovalle, Chile · 3484 days ago · 14 km deep · 59 km away · felt by 2
- 4.382 km W of Coquimbo, Chile · 3483 days ago · 10 km deep · 18 km away
- 4.178 km W of Coquimbo, Chile · 3483 days ago · 10 km deep · 16 km away · felt by 1
- 5.126 km NW of Ovalle, Chile · 3481 days ago · 46 km deep · 93 km away · felt by 24
- 4.362 km WSW of Coquimbo, Chile · 3451 days ago · 28 km deep · 29 km away · felt by 2
Before
- 5.477 km WSW of Coquimbo, Chile · 3506 days ago · 10 km deep · 19 km away · felt by 2
- 4.29 km S of Coquimbo, Chile · 3507 days ago · 50 km deep · 88 km away · felt by 9
- 4.480 km WNW of Coquimbo, Chile · 3516 days ago · 11 km deep · 50 km away · felt by 1
- 4.018 km SSE of Coquimbo, Chile · 3522 days ago · 84 km deep · 93 km away
- 4.221 km NW of Ovalle, Chile · 3522 days ago · 73 km deep · 97 km away
- 4.280 km W of Ovalle, Chile · 3527 days ago · 10 km deep · 63 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20008kvu. Read Wed, Sep 23, 2026, 3:47 PM UTC.