M4.0 earthquake 35 km W of Valparaíso, Chile
A magnitude 4.0 earthquake struck 35 km W of Valparaíso, Chile on Tue, Oct 3, 2017, 5:27 AM GMT-3 (08:27 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M4.2 42 km WNW of Hacienda La Calera, 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
- 2017-10-03 08:27:13 UTC
- Depth
- 18.6 km (11.6 mi), shallow
- Epicenter
- 33.019° S, 72.008° W
- Region
- Chile
- Felt reports
- 34
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
34 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.9 km horizontally, 6.1 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 175°
- 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: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.161 km W of La Ligua, Chile · 3275 days ago · 20 km deep · 60 km away · felt by 103
- 4.045 km W of Valparaíso, Chile · 3275 days ago · 16 km deep · 11 km away
- 3.710 km SSW of Valparaíso, Chile · 3270 days ago · 30 km deep · 33 km away · felt by 42
- 4.056 km W of Valparaíso, Chile · 3269 days ago · 20 km deep · 22 km away · felt by 29
- 4.242 km WNW of Hacienda La Calera, Chile · 3225 days ago · 30 km deep · 55 km away · felt by 30
- 4.242 km NNW of Valparaíso, Chile · 3221 days ago · 22 km deep · 40 km away · felt by 36
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000b0fa. Read Fri, Sep 25, 2026, 6:05 PM UTC.