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Strong mag. 5.6 earthquake - South Pacific Ocean, 83 km west of Arica, Region de Arica y Parinacota, Chile, on Tuesday, Dec 7, 2021 at 4:39 am (GMT -5) -

Strong mag. 5.6 earthquake - South Pacific Ocean, 83 km west of Arica, Region de Arica y Parinacota, Chile, on Tuesday, Dec 7, 2021 at 4:39 am (GMT -5) Strong mag. 5.6 earthquake - South Pacific Ocean, 83 km west of Arica, Region de Arica y Parinacota, Chile, on Tuesday, Dec 7, 2021 at 4:39 am (GMT -5)

Strong magnitude 5.6 earthquake at 31 km depth

7 Dec 09:44 UTC: First to report: GFZ after 5 minutes.
7 Dec 09:46: Epicenter location corrected by 3.3 km (2.1 mi) towards ENE.
7 Dec 09:52: Magnitude recalculated from 5.6 to 5.5. Hypocenter depth recalculated from 10.0 to 45.0 km (from 6.2 to 28 mi). Epicenter location corrected by 4.4 km (2.7 mi) towards ESE.
7 Dec 09:54: Now using data updates from USGS
Update Tue, 7 Dec 2021, 09:51
Significant 5.6 quake hits near Arica, Provincia de Arica, Region de Arica y Parinacota, Chile
5.6 quake 7 Dec 4:39 am (GMT -5)
5.6 quake 7 Dec 4:39 am (GMT -5)
An earthquake of magnitude 5.6 occurred only 12 minutes ago 94 km southwest of Arica, Peru, the German Research Centre for Geosciences (GFZ) reported.
The quake hit at a shallow depth of 10 km beneath the epicenter near Arica, Provincia de Arica, Region de Arica y Parinacota, Chile, early morning on Tuesday, December 7th, 2021, at 4:39 am local time. 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.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Boca del Rio (pop. 220) located 83 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Arica (pop. 186,000) located 94 km from the epicenter, Tacna (pop. 280,100) 125 km away, Pacocha (pop. 7,600) 126 km away, and Ilo (pop. 53,500) 127 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 data

Earthquake details

Date & timeDec 7, 2021 09:39:38 UTC -
Local time at epicenterTuesday, Dec 7, 2021 at 4:39 am (GMT -5)
StatusConfirmed
Magnitude5.6
Depth31.4 km
Epicenter latitude / longitude18.6378°S / 71.0691°W (South Pacific Ocean, Chile)
Antipode18.638°N / 108.931°E
Shaking intensityLight shaking
Felt9 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoTacora (171 km / 106 mi)
Nearby towns and cities83 km (52 mi) WSW of Arica (pop: 186,000) | Show on map | Quakes nearby
111 km (69 mi) SW of Tacna (Peru) (pop: 280,100) | Show on map | Quakes nearby
116 km (72 mi) SSE of Ilo (Peru) (pop: 53,500) | Show on map | Quakes nearby
148 km (92 mi) SSW of Ilabaya (Jorge Basadre, Peru) (pop: 9,490) | Show on map | Quakes nearby
159 km (99 mi) S of San Antonio (Peru) (pop: 15,600) | Show on map | Quakes nearby
161 km (100 mi) S of Moquegua (Peru) (pop: 54,500) | Show on map | Quakes nearby
175 km (109 mi) S of Torata (Mariscal Nieto, Peru) (pop: 7,050) | Show on map | Quakes nearby
187 km (116 mi) SSE of Cocachacra (Provincia de Islay, Peru) (pop: 8,800) | Show on map | Quakes nearby
200 km (124 mi) NNW of Iquique (pop: 227,500) | Show on map | Quakes nearby
206 km (128 mi) SSE of Mollendo (Provincia de Islay, Peru) (pop: 29,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 19.5°C (67 F), humidity: 74%, wind: 4 m/s (7 kts) from SSE
Estimated seismic energy released1.6 x 1013 joules (4.4 gigawatt hours, equivalent to 3788 tons of TNT or 0.2 atomic bombs!) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: 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.DepthLocationSource
5.631 kmPeru: Off Coast of Northern ChileUSGS
5.631 kmPeru: Off Coast of Northern ChileRaspberryShake
5.621 kmPeru: 83 Km WSW of Arica, ChileGFZ
5.630 kmPeru: OFF COAST OF TARAPACA, CHILEEMSC
5.110 kmPeru: Near ArequipaRENASS
5.610 kmPeru: Near Coast of Northern ChileGeoAu
5.131 kmPeru: Near Coast of Northern ChileUSP

User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
Arica (83.6 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s : Cerca elar se sentía cómo las vibraciones venían desde el mar hasta la costa. | 3 users found this interesting.  
  • Yo creo que esas vibraciones vienen de tu culo chileno de mierda
Tacna / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Temblor ligero | 3 users found this interesting.  
  • T m p tenblor
  • T m p tenblor
Pija del rio (66.4 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Chilenos traen pestes | One user found this interesting.  
TACNA (109.1 km NE of epicenter) [Map] / Light shaking (MMI IV) / simple rolling (tilting sideways along one direction) / 10-15 s
Arequipa (254.4 km NNW of epicenter) [Map] / Light shaking (MMI IV) / very short (reported through our app)
Arica (81.3 km ENE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 15-20 s
Tacna peru (109.5 km NE of epicenter) [Map] / Moderate shaking (MMI V)
Ilabaya, Jorge Basadre, Tacna (148.6 km NNE of epicenter) [Map] / Light shaking (MMI IV)
Arequipa / Light shaking (MMI IV) / 5-10 s
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Aftershocks

[More info]

Recorded aftershocks, latest first (27 quakes)

Date and timeMag
Depth		LocationDetails
Feb 5, 2022 05:30
21 weeks ago
2.8

32 km		South Pacific Ocean, 93 km S of Ilo, Departamento de Moquegua, PeruMore
Feb 5, 2022 02:54
21 weeks ago
2.7

35 km		South Pacific Ocean, 80 km W of Arica, Region de Arica y Parinacota, ChileMore
Feb 3, 2022 20:52
22 weeks ago
3.6

2.4 km		South Pacific Ocean, Peru, 76 km W of Arica, Region de Arica y Parinacota, ChileMore
Feb 1, 2022 18:07
22 weeks ago
3.3

5 km		South Pacific Ocean, 94 km S of Ilo, Departamento de Moquegua, PeruMore
Jan 30, 2022 12:03
22 weeks ago
2.7

28 km		South Pacific Ocean, 68 km W of Arica, Region de Arica y Parinacota, ChileMore
Jan 30, 2022 10:40
22 weeks ago
2.6

50 km		South Pacific Ocean, 95 km W of Arica, Region de Arica y Parinacota, ChileMore
Jan 20, 2022 21:07
24 weeks ago
3.0

12 km		South Pacific Ocean, ChileMore
Jan 18, 2022 14:45
24 weeks ago
4.2

35 km		South Pacific Ocean, PeruMore
Jan 14, 2022 22:16
24 weeks ago
2.8

10.6 km		South Pacific Ocean, ChileMore
Jan 11, 2022 00:26
25 weeks ago
3.1

25 km		South Pacific Ocean, ChileMore
Jan 8, 2022 11:24
25 weeks ago
3.6

11 km		South Pacific Ocean, ChileMore
Jan 6, 2022 17:39
26 weeks ago
3.2

5 km		South Pacific Ocean, ChileMore
Dec 25, 2021 21:32
27 weeks ago
3.0

5 km		South Pacific Ocean, 90 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 18, 2021 02:42
28 weeks ago
3.9

5 km		South Pacific Ocean, 101 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 16, 2021 16:26
29 weeks ago
3.1

5 km		South Pacific Ocean, 85 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 15, 2021 23:44
29 weeks ago
3.4

14 km		South Pacific Ocean, 128 km SW of Tacna, PeruMore
Dec 13, 2021 12:56
29 weeks ago
3.6

5 km		South Pacific Ocean, 66 km SW of Arica, Region de Arica y Parinacota, ChileMore
Dec 12, 2021 13:38
29 weeks ago
3.4

5 km		South Pacific Ocean, 94 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 9, 2021 21:12
30 weeks ago
3.4

43 km		South Pacific Ocean, Peru, 84 km W of Arica, ChileMore
Dec 8, 2021 08:34
30 weeks ago
2.8

47 km		South Pacific Ocean, 66 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 8, 2021 08:34
30 weeks ago
3.7

5 km		South Pacific Ocean, 136 km SW of Tacna, PeruMore
Dec 8, 2021 07:18
30 weeks ago
3.3

5 km		South Pacific Ocean, 99 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 8, 2021 02:57
30 weeks ago
3.4

5 km		South Pacific Ocean, 95 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 7, 2021 21:15
30 weeks ago
3.4

5 km		South Pacific Ocean, 88 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 7, 2021 11:46
30 weeks ago
4.3

35 km		South Pacific Ocean, 59 km SW of Arica, Region de Arica y Parinacota, ChileMore
Dec 7, 2021 10:02
30 weeks ago
2.7

28 km		South Pacific Ocean, 70 km W of Arica, Region de Arica y Parinacota, ChileMore
Dec 7, 2021 09:43
30 weeks ago
4.5

35 km		South Pacific Ocean, Peru, 99 km W of Arica, Region de Arica y Parinacota, ChileMore

Earlier earthquakes in the same area

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