M4.2 earthquake 143 km N of Calama, Chile
A magnitude 4.2 earthquake struck 143 km N of Calama, Chile on Mon, Dec 27, 2021, 4:04 PM GMT-3 (19:04 UTC), 114 km (71 mi) below the surface.
A larger quake followed: M4.8 113 km ESE of Iquique, 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 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-12-27 19:04:14 UTC
- Depth
- 113.5 km (70.5 mi), intermediate-depth
- Epicenter
- 21.177° S, 68.692° 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.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.6 km horizontally, 7.1 km in depth
- Magnitude uncertainty
- ±0.37
- Depth from
- From location
- Station coverage gap
- 69°
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 9 in the 30 days before it.
After
- 4.7131 km NNE of Calama, Chile · 1735 days ago · 138 km deep · 36 km away
- 4.2146 km N of Calama, Chile · 1732 days ago · 119 km deep · 3 km away
- 4.160 km NNE of Calama, Chile · 1727 days ago · 149 km deep · 89 km away
- 4.2162 km N of Calama, Chile · 1726 days ago · 110 km deep · 20 km away
- 4.3129 km N of Calama, Chile · 1723 days ago · 119 km deep · 24 km away
- 4.0130 km NNE of Calama, Chile · 1722 days ago · 151 km deep · 58 km away
- 4.2114 km NNE of Calama, Chile · 1717 days ago · 124 km deep · 50 km away
- 3.8120 km ESE of Iquique, Chile · 1716 days ago · 108 km deep · 66 km away · felt by 2
- 4.3158 km ESE of Iquique, Chile · 1716 days ago · 115 km deep · 28 km away
- 4.4161 km NNE of Calama, Chile · 1714 days ago · 148 km deep · 21 km away · felt by 1
- 4.4132 km N of Calama, Chile · 1713 days ago · 133 km deep · 20 km away · felt by 1
- 4.6121 km NNE of Calama, Chile · 1709 days ago · 131 km deep · 27 km away
- 4.199 km N of Calama, Chile · 1702 days ago · 117 km deep · 49 km away
- 4.0118 km ESE of Iquique, Chile · 1701 days ago · 106 km deep · 88 km away · felt by 1
- 4.8113 km ESE of Iquique, Chile · 1697 days ago · 93 km deep · 78 km away · felt by 22
- 4.2131 km N of Calama, Chile · 1695 days ago · 116 km deep · 25 km away
- 4.5127 km NNE of Calama, Chile · 1693 days ago · 125 km deep · 18 km away
- 4.4119 km WSW of Colchani, Bolivia · 1689 days ago · 187 km deep · 89 km away
- 4.2144 km NNE of Calama, Chile · 1686 days ago · 140 km deep · 9 km away
- 4.386 km NW of Ollag?e, Chile · 1685 days ago · 108 km deep · 55 km away · felt by 1
- 4.4159 km N of Calama, Chile · 1685 days ago · 140 km deep · 21 km away · felt by 2
- 4.267 km NNE of Calama, Chile · 1684 days ago · 139 km deep · 78 km away
- 4.2116 km NE of Tocopilla, Chile · 1682 days ago · 13 km deep · 83 km away · felt by 1
- 4.1106 km ESE of Iquique, Chile · 1681 days ago · 94 km deep · 92 km away · felt by 5
Before
- 4.5145 km SW of Uyuni, Bolivia · 1743 days ago · 167 km deep · 87 km away
- 4.486 km NNE of Calama, Chile · 1749 days ago · 107 km deep · 65 km away
- 4.657 km NNE of Calama, Chile · 1752 days ago · 126 km deep · 89 km away
- 4.5119 km ESE of Iquique, Chile · 1752 days ago · 112 km deep · 67 km away · felt by 1
- 4.1152 km N of Calama, Chile · 1753 days ago · 136 km deep · 10 km away
- 4.2152 km N of Calama, Chile · 1754 days ago · 106 km deep · 18 km away
- 4.5120 km NE of Calama, Chile · 1756 days ago · 117 km deep · 89 km away
- 4.1135 km SE of Iquique, Chile · 1756 days ago · 116 km deep · 50 km away · felt by 1
- 4.3147 km E of Iquique, Chile · 1762 days ago · 122 km deep · 93 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000gfnp. Read Sat, Oct 3, 2026, 7:53 AM UTC.