M4.7 earthquake 37 km W of Illapel, Chile
A magnitude 4.7 earthquake struck 37 km W of Illapel, Chile on Wed, Nov 21, 2018, 8:42 AM GMT-3 (11:42 UTC), 49 km (30 mi) below the surface.
A larger quake followed: M4.8 25 km WSW of Ovalle, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-11-21 11:42:59 UTC
- Depth
- 49.0 km (30.5 mi), shallow
- Epicenter
- 31.589° S, 71.556° 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 V, moderate 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
- 4.7 Mwr
- Nodal plane 1
- Strike 360°, dip 32°, rake 100°
- Nodal plane 2
- Strike 168°, dip 59°, rake 84°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.1 km horizontally, 5.3 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 80°
- Stations used
- 81
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.354 km WSW of Ovalle, Chile · 2870 days ago · 24 km deep · 88 km away
- 4.825 km WSW of Ovalle, Chile · 2856 days ago · 32 km deep · 97 km away · felt by 2
- 4.249 km WSW of Ovalle, Chile · 2854 days ago · 39 km deep · 93 km away · felt by 2
- 4.378 km WNW of La Ligua, Chile · 2822 days ago · 15 km deep · 72 km away
- 4.363 km WNW of La Ligua, Chile · 2814 days ago · 10 km deep · 76 km away
- 4.642 km WSW of Ovalle, Chile · 2813 days ago · 62 km deep · 89 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000huwi. Read Thu, Oct 1, 2026, 3:45 AM UTC.