M4.0 earthquake 54 km W of La Ligua, Chile
A magnitude 4.0 earthquake struck 54 km W of La Ligua, Chile on Sat, Sep 29, 2018, 3:13 AM GMT-3 (06:13 UTC), 21 km (13 mi) below the surface.
A larger quake followed: M4.4 115 km WNW of Valparaíso, 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 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-09-29 06:13:35 UTC
- Depth
- 21.4 km (13.3 mi), shallow
- Epicenter
- 32.521° S, 71.805° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.2 km horizontally, 7.8 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 182°, poorly surrounded by stations
- Stations used
- 36
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 4 in the 30 days before it.
After
- 4.4115 km WNW of Valparaíso, Chile · 2910 days ago · 32 km deep · 82 km away · felt by 1
- 4.255 km W of Valparaíso, Chile · 2905 days ago · 9 km deep · 73 km away
- 4.121 km NW of Hacienda La Calera, Chile · 2905 days ago · 40 km deep · 43 km away · felt by 1
Before
- 4.137 km WSW of La Ligua, Chile · 2942 days ago · 21 km deep · 19 km away
- 4.536 km WSW of La Ligua, Chile · 2942 days ago · 32 km deep · 19 km away · felt by 6
- 4.6102 km W of Illapel, Chile · 2950 days ago · 11 km deep · 94 km away
- 4.66 km N of La Ligua, Chile · 2957 days ago · 48 km deep · 56 km away · felt by 56
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000h45y. Read Sun, Oct 4, 2026, 5:24 PM UTC.