M3.1 earthquake 22 km NW of Valparaíso, Chile
A magnitude 3.1 earthquake struck 22 km NW of Valparaíso, Chile on Tue, Aug 14, 2018, 11:53 PM GMT-3 (02:53 UTC), 28 km (18 mi) below the surface.
A larger quake followed: M4.6 6 km N of La Ligua, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.1 (ml), minor
- Local time
- UTC
- 2018-08-15 02:53:57 UTC
- Depth
- 28.2 km (17.5 mi), shallow
- Epicenter
- 32.867° S, 71.770° W
- Region
- Chile
- Felt reports
- 3
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.5 km horizontally, 10.8 km in depth
- Depth from
- From location
- Station coverage gap
- 180°
- Stations used
- 33
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
- 4.349 km WNW of La Ligua, Chile · 2964 days ago · 53 km deep · 71 km away · felt by 1
- 4.447 km W of Valparaíso, Chile · 2957 days ago · 18 km deep · 43 km away · felt by 3
- 4.66 km N of La Ligua, Chile · 2951 days ago · 48 km deep · 73 km away · felt by 56
- 4.536 km WSW of La Ligua, Chile · 2936 days ago · 32 km deep · 39 km away · felt by 6
- 4.137 km WSW of La Ligua, Chile · 2936 days ago · 21 km deep · 37 km away
- 4.054 km W of La Ligua, Chile · 2921 days ago · 21 km deep · 39 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000g9ft. Read Mon, Sep 28, 2026, 3:32 PM UTC.