M4.4 earthquake 50 km WSW of Illapel, Chile
A magnitude 4.4 earthquake struck 50 km WSW of Illapel, Chile on Sat, Apr 14, 2018, 1:04 AM GMT-3 (04:04 UTC), 40 km (25 mi) below the surface.
A larger quake followed: M4.7 38 km NW 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
- 4.4 (mwr), light
- Local time
- UTC
- 2018-04-14 04:04:40 UTC
- Depth
- 40.4 km (25.1 mi), shallow
- Epicenter
- 31.755° S, 71.680° W
- Region
- Chile
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
2 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 4.4 Mwr
- Nodal plane 1
- Strike 353°, dip 29°, rake 102°
- Nodal plane 2
- Strike 159°, dip 62°, rake 83°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.3 km horizontally, 6.2 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- From location
- Station coverage gap
- 77°
- Stations used
- 76
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 3 in the 30 days before it.
After
- 4.738 km NW of La Ligua, Chile · 3050 days ago · 32 km deep · 51 km away · felt by 110
- 4.641 km WNW of Illapel, Chile · 3042 days ago · 41 km deep · 38 km away · felt by 1
- 4.363 km NNW of Valparaíso, Chile · 3028 days ago · 20 km deep · 88 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000e033. Read Thu, Sep 24, 2026, 5:46 PM UTC.