M4.1 earthquake 43 km W of Santa Cruz, Chile
A magnitude 4.1 earthquake struck 43 km W of Santa Cruz, Chile on Thu, Oct 29, 2015, 3:34 AM GMT-3 (06:34 UTC), 42 km (26 mi) below the surface.
A larger quake followed: M4.6 53 km NNW of Talca, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mwr), light
- Local time
- UTC
- 2015-10-29 06:34:47 UTC
- Depth
- 41.5 km (25.8 mi), shallow
- Epicenter
- 34.699° S, 71.837° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
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
- 4.1 Mwr
- Nodal plane 1
- Strike 25°, dip 29°, rake 120°
- Nodal plane 2
- Strike 172°, dip 65°, rake 75°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.1 km horizontally, 6.3 km in depth
- Magnitude uncertainty
- ±0.07
- Stations used
- 0
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.373 km N of Constitución, Chile · 3972 days ago · 10 km deep · 65 km away
- 4.328 km W of Rauco, Chile · 3966 days ago · 47 km deep · 34 km away · felt by 1
- 4.292 km SW of San Antonio, Chile · 3963 days ago · 17 km deep · 74 km away
- 4.653 km NNW of Talca, Chile · 3945 days ago · 41 km deep · 36 km away · felt by 5
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us200040dv. Read Wed, Sep 30, 2026, 4:50 PM UTC.