M4.2 earthquake 24 km NNW of Vallenar, Chile
A magnitude 4.2 earthquake struck 24 km NNW of Vallenar, Chile on Sun, Oct 1, 2017, 7:24 AM GMT-3 (10:24 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M4.4 38 km S of Copiapó, 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
- 2017-10-01 10:24:37 UTC
- Depth
- 60.8 km (37.8 mi), shallow
- Epicenter
- 28.371° S, 70.843° 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 6.3 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.24
- Depth from
- From location
- Station coverage gap
- 88°
- Stations used
- 47
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
- 4.252 km SSE of Copiapó, Chile · 3274 days ago · 97 km deep · 88 km away · felt by 1
- 4.438 km S of Copiapó, Chile · 3273 days ago · 77 km deep · 91 km away
- 4.364 km W of Vallenar, Chile · 3269 days ago · 40 km deep · 65 km away
- 3.886 km W of Vallenar, Chile · 3268 days ago · 28 km deep · 86 km away
- 4.281 km WNW of Vallenar, Chile · 3243 days ago · 39 km deep · 66 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000axgg. Read Sat, Sep 26, 2026, 5:18 AM UTC.