M4.4 earthquake 73 km S of Calama, Chile
A magnitude 4.4 earthquake struck 73 km S of Calama, Chile on Wed, Jul 22, 2026, 9:56 PM GMT-4 (01:56 UTC), 100 km (62 mi) below the surface.
A larger quake followed: M5.1 78 km SW 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
- 4.4 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2026-07-23 01:56:01 UTC
- Depth
- 100.4 km (62.4 mi), intermediate-depth
- Epicenter
- 23.117° S, 68.970° 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
- 4.4 Mwr
- Nodal plane 1
- Strike 16°, dip 61°, rake -76°
- Nodal plane 2
- Strike 169°, dip 32°, rake -113°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.5 km horizontally, 4.3 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 62°
- Stations used
- 50
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.178 km SW of San Pedro de Atacama, Chile · 68 days ago · 104 km deep · 52 km away · felt by 4
- 4.422 km SSW of San Pedro de Atacama, Chile · 30 days ago · 139 km deep · 67 km away
- 4.923 km NE of Calama, Chile · 27 days ago · 118 km deep · 93 km away
- 4.287 km SW of San Pedro de Atacama, Chile · 25 days ago · 101 km deep · 31 km away
- 4.221 km E of Calama, Chile · 25 days ago · 120 km deep · 81 km away
- 4.638 km W of San Pedro de Atacama, Chile · 13 days ago · 111 km deep · 44 km away
Before
- 4.853 km SSW of San Pedro de Atacama, Chile · 73 days ago · 112 km deep · 54 km away
- 4.692 km S of San Pedro de Atacama, Chile · 73 days ago · 123 km deep · 94 km away
- 4.352 km SSW of Calama, Chile · 80 days ago · 98 km deep · 35 km away
- 4.336 km SSW of Calama, Chile · 98 days ago · 109 km deep · 42 km away
- 4.325 km NE of Calama, Chile · 99 days ago · 114 km deep · 95 km away
- 4.019 km NE of Calama, Chile · 102 days ago · 122 km deep · 88 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000t2kg. Read Sat, Oct 3, 2026, 4:13 PM UTC.