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Mag. 4.7 earthquake - 62 km north of Calama, Provincia de El Loa, Antofagasta, Chile, on Friday, May 7, 2021 11:01 am (Santiago time)

Mag. 4.7 earthquake - 62 km north of Calama, Provincia de El Loa, Antofagasta, Chile, on Friday, May 7, 2021 11:01 am (Santiago time) Mag. 4.7 earthquake - 62 km north of Calama, Provincia de El Loa, Antofagasta, Chile, on Friday, May 7, 2021 11:01 am (Santiago time)

Light magnitude 4.7 earthquake at 120 km depth

7 May 15:06 UTC: First to report: GFZ after 4 minutes.
7 May 15:08: Magnitude recalculated from 5.0 to 4.8. Hypocenter depth recalculated from 107.0 to 113.0 km (from 66 to 70 mi). Epicenter location corrected by 5.3 km (3.3 mi) towards ENE.
7 May 15:18: Now using data updates from GUG (U. Chile)
7 May 21:24: Hypocenter depth recalculated from 119.3 to 119.6 km (from 74 to 74 mi).
Update Fri, 7 May 2021, 15:12

Magnitude 4.8 earthquake strikes near Calama, Provincia de El Loa, Antofagasta, Chile

4.8 quake 7 May 11:01 am (GMT -4)
4.8 quake 7 May 11:01 am (GMT -4)
The German Research Centre for Geosciences (GFZ) reported a magnitude 4.8 quake in Chile near Calama, Provincia de El Loa, Antofagasta, only 10 minutes ago. The earthquake hit in the morning on Friday 7 May 2021 at 11:01 am local time at an intermediate depth of 113 km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.9.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Calama (pop. 143,100) located 63 km from the epicenter, and San Pedro de Atacama (pop. 2,000) 114 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
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Earthquake details

Date & timeMay 7, 2021 15:01:40 UTC
Local time at epicenterFriday, May 7, 2021 11:01 am (America/Santiago GMT -4)
Depth119.6 km
Epicenter latitude / longitude21.938°S / 68.694°W Provincia de El Loa, Antofagasta, Chile
Antipode21.938°N / 111.306°E
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceCSN (National Seismological Center (Centro Sismológico Nacional))
Nearest volcanoSan Pedro (24 km / 15 mi)
Weather at epicenter at time of quakeClear Sky 19°C (66 F), humidity: 14%, wind: 3 m/s (5 kts) from ENE
Estimated seismic energy released7.1 x 1011 joules (197 megawatt hours, equivalent to 169 tons of TNT) | about seismic energy
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Nearby places

Distance Place Max. shaking intensity(*) Region Country
62 km (39 mi)
SSW of epicenter
(pop: 143,100)
Provincia de El Loa, Antofagasta
120 km (74 mi)
SSE of epicenter
San Pedro de Atacama
(pop: 2,000)
Very weak
Provincia de El Loa, Antofagasta
156 km (97 mi)
W of epicenter
(pop: 24,500)
Very weak
244 km (152 mi)
NW of epicenter
(pop: 191,500)
Very weak
258 km (161 mi)
SW of epicenter
(pop: 309,800)
Very weak
403 km (250 mi)
NE of epicenter
Ciudad Potosi
(pop: 141,300)
Not felt
Departamento de Potosi
420 km (261 mi)
NNW of epicenter
(pop: 186,000)
Not felt
Region de Arica y Parinacota
429 km (266 mi)
SE of epicenter
(pop: 305,900)
Not felt
Departamento de Doctor Manuel Belgrano, Jujuy
461 km (287 mi)
SE of epicenter
(pop: 512,700)
Not felt
Departamento Capital, Salta
482 km (299 mi)
NE of epicenter
(pop: 224,800)
Not felt
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

Compare Quake Data

Data for the same earthquake as reported by different agencies

The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag Depth Time GMT Epicenter Agency
4.7 120 km (74 mi) 2021-05-7 15:01:40 64 Km Al NE De Calama, Chile CSN (National Seismological Center (Centro Sismológico Nacional))
4.7 119 km (74 mi) 2021-05-7 15:01:39 ANTOFAGASTA, CHILE
0.7 km (0.4 mi) epicenter difference with GUG (U. Chile)
EMSC (European-Mediterranean Seismological Centre)
4.8 113 km (70 mi) 2021-05-7 15:01:40 Chile-Bolivia Border Region
8 km (5 mi) epicenter difference with GUG (U. Chile)
GFZ (German Research Centre for Geosciences)
4.6 117 km (73 mi) 2021-05-7 15:01:40 Chile-Bolivia Border Region
7.1 km (4.4 mi) epicenter difference with GUG (U. Chile)
USGS (United States Geological Survey)
5.1 50 km (31 mi) 2021-05-7 15:01:30 Northern Chile
39 km (24 mi) epicenter difference with GUG (U. Chile)


Seismic station: SAN PEDRO DE ATACAMA (AF01/C1 network) | Distance from quake: 125 km / 77 mi | Show on map | Station Info
Seismic station SAN PEDRO DE ATACAMA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User-reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

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