M4.0 earthquake 19 km NE of Calama, Chile
A magnitude 4.0 earthquake struck 19 km NE of Calama, Chile on Wed, Apr 19, 2017, 12:39 AM GMT-3 (03:39 UTC), 116 km (72 mi) below the surface.
A larger quake followed: M5.3 40 km W of San Pedro de Atacama, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mwr), light
- Local time
- UTC
- 2017-04-19 03:39:53 UTC
- Depth
- 116.3 km (72.3 mi), intermediate-depth
- Epicenter
- 22.330° S, 68.795° 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
- Strike-slip
- Moment magnitude
- 4.0 Mwr
- Nodal plane 1
- Strike 261°, dip 23°, rake 2°
- Nodal plane 2
- Strike 169°, dip 89°, rake 113°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.9 km horizontally, 5.0 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 67°
- Stations used
- 39
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.445 km NNE of Calama, Chile · 3449 days ago · 120 km deep · 27 km away
- 4.462 km NNE of Calama, Chile · 3445 days ago · 124 km deep · 46 km away
- 4.391 km N of Calama, Chile · 3440 days ago · 96 km deep · 77 km away
- 4.276 km S of Calama, Chile · 3418 days ago · 104 km deep · 92 km away
- 4.068 km NNE of San Pedro de Atacama, Chile · 3409 days ago · 172 km deep · 89 km away
- 4.933 km NW of San Pedro de Atacama, Chile · 3409 days ago · 116 km deep · 56 km away · felt by 1
- 5.166 km NNE of Calama, Chile · 3406 days ago · 105 km deep · 49 km away
- 5.340 km W of San Pedro de Atacama, Chile · 3403 days ago · 93 km deep · 71 km away · felt by 8
- 4.688 km NNE of Calama, Chile · 3401 days ago · 131 km deep · 71 km away
- 4.218 km SSE of Calama, Chile · 3401 days ago · 134 km deep · 32 km away · felt by 1
- 4.183 km NE of Calama, Chile · 3397 days ago · 126 km deep · 64 km away
- 4.439 km S of Calama, Chile · 3392 days ago · 102 km deep · 55 km away
Before
- 5.096 km NE of Calama, Chile · 3453 days ago · 113 km deep · 77 km away
- 4.333 km NE of Calama, Chile · 3456 days ago · 128 km deep · 14 km away
- 5.327 km ESE of Calama, Chile · 3456 days ago · 106 km deep · 24 km away · felt by 3
- 4.799 km N of Calama, Chile · 3459 days ago · 133 km deep · 87 km away
- 5.1108 km NNE of Calama, Chile · 3480 days ago · 125 km deep · 91 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10008iw2. Read Wed, Sep 30, 2026, 9:27 PM UTC.