M4.5 earthquake 118 km N of Calama, Chile
A magnitude 4.5 earthquake struck 118 km N of Calama, Chile on Thu, Mar 22, 2018, 5:03 AM GMT-3 (08:03 UTC), 117 km (73 mi) below the surface.
A larger quake followed: M5.0 114 km N 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
- 4.5 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-22 08:03:36 UTC
- Depth
- 116.8 km (72.6 mi), intermediate-depth
- Epicenter
- 21.405° S, 68.714° 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
- 4.5 Mwr
- Nodal plane 1
- Strike 25°, dip 84°, rake -30°
- Nodal plane 2
- Strike 119°, dip 61°, rake -174°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.1 km horizontally, 4.7 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 85°
- Stations used
- 142
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.3153 km N of Calama, Chile · 3095 days ago · 155 km deep · 38 km away
- 4.4106 km NNE of Calama, Chile · 3093 days ago · 135 km deep · 32 km away
- 5.0114 km N of Calama, Chile · 3089 days ago · 104 km deep · 15 km away · felt by 2
- 4.358 km NE of Calama, Chile · 3086 days ago · 116 km deep · 70 km away
- 4.3114 km NNE of Calama, Chile · 3083 days ago · 136 km deep · 24 km away
- 4.4153 km NNE of Calama, Chile · 3083 days ago · 135 km deep · 36 km away
- 4.495 km NE of Calama, Chile · 3082 days ago · 130 km deep · 54 km away
- 4.479 km ENE of Tocopilla, Chile · 3081 days ago · 85 km deep · 93 km away
- 4.288 km NNE of Calama, Chile · 3080 days ago · 120 km deep · 46 km away
- 4.059 km NNE of Calama, Chile · 3072 days ago · 102 km deep · 61 km away
- 4.3100 km NNE of Calama, Chile · 3068 days ago · 119 km deep · 44 km away
- 4.5100 km NE of Calama, Chile · 3066 days ago · 147 km deep · 50 km away
- 4.054 km NE of Calama, Chile · 3065 days ago · 120 km deep · 72 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d7f1. Read Thu, Oct 1, 2026, 5:44 PM UTC.