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Moderate mag. 5.2 earthquake - 143 km southwest of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Monday, Mar 8, 2021 at 9:48 am (GMT -3) -

Moderate mag. 5.2 earthquake - 143 km southwest of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Monday, Mar 8, 2021 at 9:48 am (GMT -3) Moderate mag. 5.2 earthquake - 143 km southwest of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Monday, Mar 8, 2021 at 9:48 am (GMT -3)

Moderate magnitude 5.2 earthquake at 98 km depth

8 Mar 12:52 UTC: First to report: GFZ after 4 minutes.
8 Mar 12:54: Magnitude recalculated from 5.1 to 5.0. Hypocenter depth recalculated from 114.0 to 98.0 km (from 71 to 61 mi). Epicenter location corrected by 17 km (10.5 mi) towards E.
8 Mar 19:42: Magnitude recalculated from 5.0 to 5.2.
Update Mon, 8 Mar 2021, 12:57
Significant magnitude 5.0 quake hits 116 km northwest of Mendoza, Argentina in the morning
5.0 quake 8 Mar 9:48 am (GMT -3)
5.0 quake 8 Mar 9:48 am (GMT -3)
An earthquake of magnitude 5.0 occurred only 9 minutes ago 116 km northwest of Mendoza, Argentina, the German Research Centre for Geosciences (GFZ) reported.
The quake hit at an intermediate depth of 98 km beneath the epicenter near Mendoza, Departamento de Guaymallén, Argentina, in the morning on Monday 8 March 2021 at 9:48 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 5.7 earthquake.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Los Andes (pop. 56,900) located 100 km from the epicenter, Calingasta (pop. 8,200) 107 km away, and Mendoza (pop. 876,900) 116 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 & timeMar 8, 2021 12:48:06 UTC -
Local time at epicenterMonday, Mar 8, 2021 at 9:48 am (GMT -3)
StatusConfirmed
Magnitude5.2
Depth98.0 km
Epicenter latitude / longitude32.24°S / 69.8°W (Departamento de Calingasta, San Juan, Argentina)
Antipode32.24°N / 110.2°E
Shaking intensityWeak shaking
Felt15 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanoTupungatito (129 km / 80 mi)
Nearby towns and cities100 km (62 mi) NE of Los Andes (Valparaíso, Chile) (pop: 56,900) | Show on map | Quakes nearby
107 km (66 mi) SSW of Calingasta (pop: 8,180) | Show on map | Quakes nearby
116 km (72 mi) NW of Mendoza (pop: 876,900) | Show on map | Quakes nearby
130 km (81 mi) WSW of Pocito (pop: 41,000) | Show on map | Quakes nearby
143 km (89 mi) SW of Ciudad de San Juan (pop: 447,000) | Show on map | Quakes nearby
146 km (91 mi) WSW of Santa Lucia (pop: 43,600) | Show on map | Quakes nearby
146 km (91 mi) SW of Chimbas (pop: 73,800) | Show on map | Quakes nearby
156 km (97 mi) NW of San Martin (Mendoza) (pop: 82,500) | Show on map | Quakes nearby
157 km (97 mi) NNE of Santiago de Chile (Metropolitana, Chile) (pop: 4,837,300) | Show on map | Quakes nearby
158 km (98 mi) WSW of Caucete (pop: 33,600) | Show on map | Quakes nearby
Weather at epicenter at time of quakeScattered Clouds 2.6°C (37 F), humidity: 97%, wind: 3 m/s (6 kts) from ENE
Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | about seismic energy
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If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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
5.298 kmMendoza Province, ArgentinaGFZ
5.2125 kmSAN JUAN (Argentina)INPRES
5.2100 kmMENDOZA, ARGENTINAEMSC
5.1128 km64 Km Al SE De Mina Los Pelambres, ArgentinaGUG (U. Chile)
5.2103 km95 Km NE of Los Andes, Chile, ArgentinaUSGS
5.2100 kmMendoza Province, ArgentinaGeoAu
5.1102 kmMendoza Province, ArgentinaUSP
5.283 kmChile-Argentina Border RegionBMKG

User reports for this quake (18)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Los Penitentes / Moderate shaking (MMI V) : Estamos en alta montaña muy cerca del epicentro. Desde anoche se sentia un ruido extraño que no podiamos identificar | 13 users found this interesting.  
  • Los ruidos provenian del cielo y de la tierra como un zumbido desde aproximadamente 9 hs antes. Estaba a 57 km en línea recta del epicentro.
  • Tal vez como algo rompiéndose o como un tren por debajo? Si era ruido como de ruptura puede estar asociado a cambios bruscos de temperatura o a quiebres de roca producidos en el interior de Montes o montañas, lo que se denomina el parto de los montes un fenómeno muy aparatoso con mucho ruido asociado a fenomenos findelmundologicos que suele provocar hundimientos, por el contrario si fue ruido como de tren o algo pesado pasando en dirección a alguna parte se podría tratar de un sismo de cono, se produce en casos de ruptura de sellos el transvasije de agua, rocas y lodo entre dos secciones del cono con el consiguiente arrastre de material rocoso lo que produce un ruido característico
  • ¿Fue un ruido extraño en la tierra o en el cielo o? ¿Un estruendo, como un tren o un musical? Thank you
Viña del Mar / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : My partner and I were working in bed and we could feel the earthquake distinctively. It lasted about 10 second with a little pause in the middle. The bed was vibrating but no objects fell around us. | 5 users found this interesting.  
163 km SSW of epicenter [Map] / Very weak shaking (MMI II) : Duró entre 15 y 20 segundos Y mas q sentirlo lo oí. Se movió un mueble y me aviso. | 4 users found this interesting. (reported through our app)  
112.6 km SE of epicenter [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 1-2 s : Como el oleaje, arriba y abajo, como si se desplazara el agua en el mar en una ola. Tardó 2 o 3 segundos | One user found this interesting. (reported through our app)  
200.3 km SSW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
558.9 km ENE of epicenter [Map] / not felt (reported through our app)
200.3 km SSW of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
144.1 km ENE of epicenter [Map] / Weak shaking (MMI III) / both vertical and horizontal swinging / 5-10 s (reported through our app)
150.1 km SSW of epicenter [Map] / Light shaking (MMI IV) / vibration and rolling (reported through our app)
468 km ESE of epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s (reported through our app)
108.9 km SE of epicenter [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s
Viña Del Mar / Weak shaking (MMI III) / 1-2 s
Godoy Cruz (119.4 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s
213.1 km SW of epicenter [Map] / not felt (reported through our app)
68.6 km S of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
116.2 km SE of epicenter [Map] / Strong shaking (MMI VI)
165.1 km SSW of epicenter [Map] / not felt (reported through our app)
87.3 km WNW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
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Aftershocks

[More info]

Recorded aftershocks, latest first (10 quakes)

Date and timeMag
Depth
LocationDetails
Apr 24, 2021 13:08
1 year 10 weeks ago
2.9

122 km
San Juan, Argentina, 100 km NE of Los Andes, Region de Valparaiso, ChileMore
Apr 23, 2021 19:38
1 year 10 weeks ago
2.6

136 km
San Juan, 115 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore
Apr 22, 2021 14:22
1 year 10 weeks ago
2.5

122 km
San Juan, 95 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore
Apr 12, 2021 01:51
1 year 12 weeks ago
2.7

118 km
138 km SW of Ciudad de San Juan, Departamento de Capital, San Juan, ArgentinaMore
Apr 6, 2021 20:16
1 year 12 weeks ago
2.7

113 km
San Juan, 107 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore
Apr 6, 2021 03:38
1 year 12 weeks ago
2.5

124 km
San Juan, 103 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore
Apr 3, 2021 21:31
1 year 13 weeks ago - felt
4.0

118 km
144 km SW of Ciudad de San Juan, Departamento de Capital, San Juan, ArgentinaMore
Mar 20, 2021 08:47
1 year 15 weeks ago
2.6

116 km
San Juan, 106 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore
Mar 15, 2021 15:16
1 year 16 weeks ago
2.6

112 km
San Juan, 128 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore
Mar 8, 2021 19:49
1 year 17 weeks ago
2.7

124 km
San Juan, 122 km NW of Mendoza, Guaymallén, Mendoza, ArgentinaMore

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