M4.1 earthquake 87 km NNW of Vallenar, Chile
A magnitude 4.1 earthquake struck 87 km NNW of Vallenar, Chile on Sat, Oct 6, 2018, 9:49 PM GMT-3 (00:49 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M4.6 92 km NNW of Vallenar, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb), light
- Local time
- UTC
- 2018-10-07 00:49:59 UTC
- Depth
- 19.2 km (11.9 mi), shallow
- Epicenter
- 27.919° S, 71.256° 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 5.3 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 184°, poorly surrounded by stations
- Stations used
- 48
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.489 km W of Copiapó, Chile · 2892 days ago · 40 km deep · 61 km away
- 4.589 km WNW of Copiapó, Chile · 2887 days ago · 21 km deep · 81 km away · felt by 1
- 4.692 km NNW of Vallenar, Chile · 2881 days ago · 22 km deep · 10 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000h8b2. Read Mon, Sep 28, 2026, 8:55 AM UTC.