Light mag. 4.6 earthquake - 48 km north of Tartagal, Departamento de General José de San Martin, Salta, Argentina, on Sunday, 28 Feb 2021 4:21 pm (GMT -3) -
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in Argentina | Quakes in Bolivia| Salta | Departamento de Tarija | Jujuy | Departamento de Chuquisaca

Light magnitude 4.6 earthquake at 536 km depth
28 Feb 19:26 UTC: First to report: GFZ after 5 minutes.
28 Feb 19:32: Hypocenter depth recalculated from 537.0 to 536.0 km (from 334 to 333 mi).
28 Feb 19:32: Hypocenter depth recalculated from 537.0 to 536.0 km (from 334 to 333 mi).
Update Sun, 28 Feb 2021, 19:30
Magnitude 4.6 earthquake strikes near Tartagal, Departamento de General José de San Martín, Salta, Argentina4.6 quake 28 Feb 4:21 pm (GMT -3)
A magnitude 4.6 earthquake near Tartagal, Departamento de General José de San Martín, Salta, Argentina, was reported only 8 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a great depth of 537 km beneath the epicenter in the afternoon on Sunday 28 February 2021 at 4:21 pm 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.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Tartagal (pop. 60,800, 48 km away), General Enrique Mosconi (pop. 19,800, 57 km away), Bermejo (pop. 35,400, 93 km away), and Villamontes (pop. 18,800, 97 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.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Tartagal (pop. 60,800, 48 km away), General Enrique Mosconi (pop. 19,800, 57 km away), Bermejo (pop. 35,400, 93 km away), and Villamontes (pop. 18,800, 97 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.
Earthquake data:
Date & time: 28 Feb 2021 19:21:48 UTC -
Local time at epicenter: Sunday, 28 Feb 2021 4:21 pm (GMT -3)
Magnitude: 4.6
Depth: 536.0 km
Epicenter latitude / longitude: 22.09°S / 63.76°W

Nearby towns and cities:
48 km (30 mi) N of Tartagal (pop: 60,800) --> See nearby quakes!
57 km (35 mi) N of General Enrique Mosconi (General Jose de San Martín) (pop: 19,800) --> See nearby quakes!
93 km (58 mi) NE of Bermejo (Aniceto Arce, Tarija, Bolivia) (pop: 35,400) --> See nearby quakes!
97 km (60 mi) SSW of Villamontes (Gran Chaco, Tarija, Bolivia) (pop: 18,800) --> See nearby quakes!
118 km (73 mi) ESE of Tarija (Bolivia) (pop: 159,300) --> See nearby quakes!
129 km (80 mi) NNE of Embarcacion (General Jose de San Martín) (pop: 24,000) --> See nearby quakes!
130 km (81 mi) NNE of Oran (pop: 74,100) --> See nearby quakes!
282 km (175 mi) NE of San Salvador de Jujuy (pop: 305,900) --> See nearby quakes!
344 km (214 mi) NNE of Salta (pop: 512,700) --> See nearby quakes!
374 km (233 mi) SSE of Sucre (Chuquisaca, Bolivia) (pop: 224,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
33.3°C (92 F), humidity: 30%, wind: 3 m/s (6 kts) from ESE
Primary data source: GFZ (German Research Centre for Geosciences)Clear Sky

Estimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 tons of TNT) More info
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.
Magnitude | Depth | Location | Source |
4.6 | 536 km | Salta Province, Argentina | GFZ |
4.6 | 518 km | SALTA (Argentina) | INPRES |
4.5 | 536 km | SALTA, ARGENTINA | EMSC |
4.5 | 531 km | 15 Km SW of Yacuiba, Bolivia, Argentina | USGS |
4.3 | 538 km | Salta Province, Argentina | USP |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
be the first to report it!
There are no user reports for this quake yet. If you felt it Earlier earthquakes in the same area since 1900
- Date / time UTC| Mag |Depth|Age|Distance| Details
- 24 Nov 2015 22:48| 8.2 |unknown|5 years ago|149km / 92mi| Mariscal Estigarribia, Departamento de Boqueron, Paraguay
- 23 Jan 1997 02:15| 7.1 |276km / 172mi|24 years ago|202km / 126mi| 16 km NW of Villazon, Modesto Omiste, Departamento de Potosi, Bolivia
- 02 Apr 2018 13:40| 6.7 |548km / 341mi|3 years ago|174km / 108mi| Chuquisaca, Departamento de Chuquisaca, 80 km NE of Villamontes, Bolivia
- 12 May 1959 09:46| 6.6 |25km / 16mi|62 years ago|160km / 100mi| 60 km W of Oran, Salta, Argentina
- 21 Jul 2007 15:34| 6.4 |290km / 180mi|14 years ago|208km / 129mi| 20 km W of La Quiaca, Departamento de Yavi, Jujuy, Argentina
- 23 Aug 1968 22:36| 6.3 |534km / 332mi|53 years ago|24km / 15mi| 64 km NE of Tartagal, Departamento de General José de San Martin, Salta, Argentina
- 04 Aug 2016 14:15| 6.2 |249km / 155mi|5 years ago|226km / 140mi| 43 km SW of La Quiaca, Departamento de Yavi, Jujuy, Argentina
- 28 Jul 1988 17:12| 6.2 |279km / 174mi|33 years ago|202km / 125mi| 13 km W of Villazon, Modesto Omiste, Departamento de Potosi, Bolivia
- 17 Mar 2004 03:21| 6.1 |290km / 180mi|17 years ago|218km / 135mi| 39 km N of Tupiza, Sud Chichas, Departamento de Potosi, Bolivia
- 25 Oct 1973 14:08| 6.1 |529km / 329mi|48 years ago|16km / 10mi| 122 km SE of Tarija, Bolivia
Hint: Click on Date/Time to show latest first
Show all