M4.2 earthquake 114 km NNE of Calama, Chile
A magnitude 4.2 earthquake struck 114 km NNE of Calama, Chile on Mon, Feb 9, 2015, 6:11 PM GMT-3 (21:11 UTC), 98 km (61 mi) below the surface.
A larger quake followed: M5.6 41 km NE of Calama, 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), light
- Local time
- UTC
- 2015-02-09 21:11:31 UTC
- Depth
- 98.3 km (61.1 mi), intermediate-depth
- Epicenter
- 21.478° S, 68.569° 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
- Normal
- Moment magnitude
- 4.2 Mwr
- Nodal plane 1
- Strike 328°, dip 63°, rake -108°
- Nodal plane 2
- Strike 184°, dip 32°, rake -59°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.0 km horizontally, 4.8 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- FROM_LOCATION
- Station coverage gap
- 44°
- Stations used
- 67
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 8 in the 30 days before it.
After
- 4.2101 km NE of Calama, Chile · 4249 days ago · 117 km deep · 45 km away
- 4.7131 km NNE of Calama, Chile · 4243 days ago · 131 km deep · 27 km away
- 4.654 km N of Calama, Chile · 4217 days ago · 103 km deep · 62 km away
- 4.5100 km NNE of Calama, Chile · 4206 days ago · 120 km deep · 25 km away
- 4.0140 km NNE of San Pedro de Atacama, Chile · 4204 days ago · 223 km deep · 97 km away
- 4.1153 km NNE of Calama, Chile · 4204 days ago · 130 km deep · 42 km away
- 5.641 km NE of Calama, Chile · 4203 days ago · 112 km deep · 82 km away · felt by 7
- 4.6153 km N of Calama, Chile · 4202 days ago · 127 km deep · 48 km away
- 4.043 km NE of Calama, Chile · 4200 days ago · 111 km deep · 79 km away
- 4.197 km NE of Calama, Chile · 4193 days ago · 120 km deep · 40 km away
Before
- 4.398 km NNE of Calama, Chile · 4254 days ago · 122 km deep · 24 km away
- 4.3127 km NE of Tocopilla, Chile · 4255 days ago · 75 km deep · 91 km away
- 4.150 km NNE of Calama, Chile · 4260 days ago · 105 km deep · 64 km away
- 4.141 km ENE of Calama, Chile · 4261 days ago · 104 km deep · 98 km away
- 4.2126 km NNE of Calama, Chile · 4263 days ago · 107 km deep · 18 km away
- 4.4141 km N of Calama, Chile · 4265 days ago · 123 km deep · 37 km away
- 4.274 km NE of Calama, Chile · 4277 days ago · 114 km deep · 50 km away
- 4.0150 km SW of Uyuni, Bolivia · 4279 days ago · 175 km deep · 66 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100009zd. Read Tue, Sep 29, 2026, 3:32 PM UTC.