M4.2 earthquake 35 km WSW of Santa Cruz, Chile
A magnitude 4.2 earthquake struck 35 km WSW of Santa Cruz, Chile on Tue, Feb 6, 2018, 1:13 AM GMT-3 (04:13 UTC), 45 km (28 mi) below the surface.
A larger quake followed: M4.9 79 km W of Santa Cruz, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-02-06 04:13:41 UTC
- Depth
- 44.9 km (27.9 mi), shallow
- Epicenter
- 34.769° S, 71.724° W
- Region
- Chile
- Felt reports
- 10
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
10 people reported to the USGS what they felt; the strongest reported shaking was III, 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
- 4.2 Mwr
- Nodal plane 1
- Strike 7°, dip 22°, rake 104°
- Nodal plane 2
- Strike 172°, dip 68°, rake 84°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.7 km horizontally, 4.9 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 64°
- Stations used
- 60
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000chbc. Read Sun, Oct 4, 2026, 6:32 AM UTC.