M4.2 earthquake 138 km WSW of Coquimbo, Chile
A magnitude 4.2 earthquake struck 138 km WSW of Coquimbo, Chile on Sun, Oct 29, 2017, 12:09 PM GMT-3 (15:09 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.4 67 km WSW of Coquimbo, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 2017-10-29 15:09:44 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 30.393° S, 72.691° 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 4.8 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- Operator assigned
- Station coverage gap
- 182°, poorly surrounded by stations
- Stations used
- 27
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.467 km WSW of Coquimbo, Chile · 3248 days ago · 13 km deep · 71 km away
- 4.2103 km WNW of Coquimbo, Chile · 3236 days ago · 25 km deep · 100 km away
- 4.368 km W of Coquimbo, Chile · 3216 days ago · 22 km deep · 85 km away
- 4.470 km W of Coquimbo, Chile · 3216 days ago · 27 km deep · 83 km away
- 4.249 km W of Ovalle, Chile · 3208 days ago · 36 km deep · 98 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000ayb8. Read Mon, Sep 28, 2026, 8:23 AM UTC.