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Light mag. 4.5 earthquake - 88 km west of El Aguilar, Departamento de Humahuaca, Jujuy, Argentina, on Saturday, Dec 26, 2020 at 12:18 am (GMT -3)

Light magnitude 4.5 earthquake at 220 km depth

26 Dec 03:21 UTC: First to report: GFZ after 4 minutes.
26 Dec 03:25: Magnitude recalculated from 4.6 to 4.5. Hypocenter depth recalculated from 244.0 to 220.0 km (from 152 to 137 mi). Epicenter location corrected by 4.2 km (2.6 mi) towards ESE.

Update Sat, 26 Dec 2020, 03:27

Light earthquake of magnitude 4.5 just reported 88 km west of El Aguilar, Argentina

4.5 quake 26 Dec 12:18 am (GMT -3)

The German Research Centre for Geosciences (GFZ) reported a magnitude 4.5 quake in Argentina near El Aguilar, Departamento de Humahuaca, Jujuy, only 9 minutes ago. The earthquake hit after midnight on Saturday 26 December 2020 at 12:18 am local time at an intermediate to considerable depth of 220 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 INPRES which listed the quake at magnitude 4.6. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 4.5.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In El Aguilar (pop. 3,700, 88 km away), and Abra Pampa (pop. 9,400, 102 km away), the quake was probably not felt.
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 & time	Dec 26, 2020 03:18:04 UTC
Local time at epicenter	Saturday, Dec 26, 2020 at 12:18 am (GMT -3)
Status	Confirmed
Magnitude	4.5
Depth	220.0 km
Epicenter latitude / longitude	23.21°S / 66.54°W (Departamento de Susques, Jujuy, Argentina)
Antipode	23.21°N / 113.46°E
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	GFZ (German Research Centre for Geosciences)
Nearest volcano	Guayaques (111 km / 69 mi)
Nearby towns and cities	88 km (55 mi) W of El Aguilar (pop: 3,660) \| Show on map \| Quakes nearby 167 km (104 mi) NW of Jujuy (pop: 305,900) \| Show on map \| Quakes nearby 178 km (111 mi) NW of Palpala (pop: 48,200) \| Show on map \| Quakes nearby 191 km (118 mi) WNW of Libertador General San Martin (pop: 49,300) \| Show on map \| Quakes nearby 205 km (127 mi) WNW of San Pedro de Jujuy (pop: 58,400) \| Show on map \| Quakes nearby 209 km (130 mi) NW of Salta (pop: 512,700) \| Show on map \| Quakes nearby 227 km (141 mi) W of Oran (Salta) (pop: 74,100) \| Show on map \| Quakes nearby 249 km (155 mi) W of Embarcacion (General Jose de San Martín, Salta) (pop: 24,000) \| Show on map \| Quakes nearby 258 km (161 mi) ESE of Calama (Antofagasta, Chile) (pop: 143,100) \| Show on map \| Quakes nearby 291 km (181 mi) WSW of Tartagal (Salta) (pop: 60,800) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 10.7°C (51 F), humidity: 46%, wind: 2 m/s (4 kts) from SE
Estimated seismic energy released	3.5 x 10¹¹ joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) \| 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.	Depth	Location	Source
4.5	220 km	- 89 km W of El Aguilar, Argentina	GFZ
4.6	220 km	JUJUY, ARGENTINA	EMSC
4.5	232 km	JUJUY (Argentina)	INPRES
4.6	233 km	89 Km W of El Aguilar, Argentina	USGS
4.3	217 km	Jujuy Province, Argentina	USP

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Seismograms

Seismic station: Mina Guanaco, Chile (GO02/C network) | Distance from quake: 378 km / 235 mi | Show on map | Station Info

Seismic station Mina Guanaco, Chile: 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

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.

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