M4.4 earthquake 144 km N of Calama, Chile
A magnitude 4.4 earthquake struck 144 km N of Calama, Chile on Fri, Sep 27, 2019, 4:29 AM GMT-3 (07:29 UTC), 99 km (61 mi) below the surface.
A larger quake followed: M5.7 67 km NNE 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
- 4.4 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-09-27 07:29:35 UTC
- Depth
- 98.8 km (61.4 mi), intermediate-depth
- Epicenter
- 21.155° S, 69.003° 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
- Oblique normal
- Moment magnitude
- 4.4 Mwr
- Nodal plane 1
- Strike 208°, dip 31°, rake -50°
- Nodal plane 2
- Strike 343°, dip 67°, rake -111°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.1 km horizontally, 6.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 49°
- Stations used
- 47
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 6 in the 30 days before it.
After
- 4.3146 km N of Calama, Chile · 2560 days ago · 110 km deep · 3 km away
- 5.767 km NNE of Calama, Chile · 2553 days ago · 119 km deep · 96 km away · felt by 16
- 4.2138 km N of Calama, Chile · 2543 days ago · 107 km deep · 35 km away
- 4.5131 km N of Calama, Chile · 2530 days ago · 120 km deep · 15 km away
- 4.4148 km N of Calama, Chile · 2526 days ago · 110 km deep · 14 km away
- 4.1110 km NNE of Calama, Chile · 2525 days ago · 132 km deep · 67 km away
- 4.2145 km NNE of Calama, Chile · 2522 days ago · 108 km deep · 45 km away
- 4.3130 km ESE of Iquique, Chile · 2521 days ago · 99 km deep · 78 km away
- 3.977 km NNE of Calama, Chile · 2509 days ago · 99 km deep · 94 km away
- 4.387 km NNE of Calama, Chile · 2502 days ago · 137 km deep · 74 km away
Before
- 4.361 km NNE of Calama, Chile · 2570 days ago · 121 km deep · 93 km away
- 4.3116 km NNE of Calama, Chile · 2572 days ago · 139 km deep · 44 km away
- 4.365 km NNE of Calama, Chile · 2573 days ago · 117 km deep · 89 km away
- 4.0132 km N of Calama, Chile · 2580 days ago · 120 km deep · 15 km away
- 4.4143 km NNE of Calama, Chile · 2581 days ago · 134 km deep · 52 km away
- 4.3127 km N of Calama, Chile · 2583 days ago · 135 km deep · 29 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70005m9d. Read Fri, Oct 2, 2026, 8:05 AM UTC.