M4.2 earthquake 56 km NW of Tocopilla, Chile
A magnitude 4.2 earthquake struck 56 km NW of Tocopilla, Chile on Sat, Feb 28, 2015, 12:30 AM GMT-3 (03:30 UTC), 30 km (19 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mwr), light
- Local time
- UTC
- 2015-02-28 03:30:48 UTC
- Depth
- 30.0 km (18.6 mi), shallow
- Epicenter
- 21.752° S, 70.608° 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
- 4.2 Mwr
- Nodal plane 1
- Strike 353°, dip 25°, rake 98°
- Nodal plane 2
- Strike 164°, dip 66°, rake 86°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.6 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.05
- 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: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usc000ttx7. Read Tue, Sep 29, 2026, 12:00 PM UTC.