Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Mag. 2.5 quake - 91 km west of Ciudad de San Juan, Departamento de Capital, San Juan, Argentina, on Tuesday, Nov 21, 2023 02:15 am (San Juan time) -

Minor magnitude 2.5 earthquake at 115 km depth

21 Nov 05:22 UTC: First to report: INPRES after 7 minutes.
21 Nov 10:36: Magnitude recalculated from 2.7 to 2.5. Hypocenter depth recalculated from 103.0 to 115.0 km (from 64 to 71 mi). Epicenter location corrected by 2.6 km (1.6 mi) towards NNE.

Earthquake details

Date & time	Nov 21, 2023 05:15:00 UTC -
Local time at epicenter	Tuesday, Nov 21, 2023 02:15 am (America/Argentina/San Juan GMT -3)
Status	Confirmed
Magnitude	2.5
Depth	115.0 km
Epicenter latitude / longitude	31.668°S / 69.49°W Departamento de Calingasta, San Juan, Argentina
Antipode	31.668°N / 110.51°E
Shaking intensity	Not felt
Felt
Primary data source	INPRES
Nearest volcano	Tupungatito (195 km / 121 mi)
Weather at epicenter at time of quake	Scattered Clouds 18.7°C (66 F), humidity: 27%, wind: 2 m/s (4 kts) from SSW
Estimated seismic energy released	3.5 x 10⁸ joules (98.6 kilowatt hours) \| about seismic energy

Show interactive Map

[smaller] [bigger]

Nearby places

Distance	Place	Max. shaking intensity(*)	Region	Country
38 km (23 mi) N of epicenter	Calingasta (pop: 8,180)	Not felt	San Juan	Argentina
73 km (45 mi) E of epicenter	Villa Basilio Nievas (pop: 4,040)	Not felt	Departamento de Zonda, San Juan	Argentina
86 km (53 mi) E of epicenter	Pocito (pop: 41,000)	Not felt	San Juan	Argentina
91 km (57 mi) E of epicenter	Ciudad de San Juan (pop: 447,000)	Not felt	Departamento de Capital, San Juan	Argentina
92 km (57 mi) ENE of epicenter	Villa Paula de Sarmiento (pop: 19,100)	Not felt	Departamento de Chimbas, San Juan	Argentina
93 km (58 mi) ENE of epicenter	Chimbas (pop: 73,800)	Not felt	San Juan	Argentina
95 km (59 mi) ENE of epicenter	Albardon (pop: 20,400)	Not felt	Departamento de Albardon, San Juan	Argentina
95 km (59 mi) E of epicenter	Santa Lucia (pop: 43,600)	Not felt	Departamento de Santa Lucia, San Juan	Argentina
97 km (61 mi) ENE of epicenter	San Martin (pop: 10,100)	Not felt	Departamento de San Martin, San Juan	Argentina
104 km (65 mi) E of epicenter	Nueve de Julio (pop: 7,650)	Not felt	San Juan	Argentina
114 km (71 mi) E of epicenter	Caucete (pop: 33,600)	Not felt	San Juan	Argentina
150 km (93 mi) SSE of epicenter	Mendoza (pop: 876,900)	Not felt	Guaymallén, Mendoza	Argentina
159 km (99 mi) W of epicenter	Illapel (pop: 22,800)	Not felt	Provincia de Choapa, Coquimbo Region	Chile
166 km (103 mi) SW of epicenter	Los Andes (pop: 56,900)	Not felt	Region de Valparaiso	Chile
167 km (104 mi) SW of epicenter	San Felipe (pop: 59,300)	Not felt	Region de Valparaiso	Chile
174 km (108 mi) NNE of epicenter	San José de Jachal (pop: 21,000)	Not felt	Departamento de Jachal, San Juan	Argentina
184 km (114 mi) SSE of epicenter	San Martin (pop: 82,500)	Not felt	Departamento de San Martin, Mendoza	Argentina
186 km (115 mi) WSW of epicenter	La Ligua (pop: 24,900)	Not felt	Petorca Province, Region de Valparaiso	Chile
201 km (125 mi) NW of epicenter	Ovalle (pop: 77,100)	Not felt	Provincia de Limari, Coquimbo Region	Chile
204 km (127 mi) SW of epicenter	Hacienda La Calera (pop: 49,100)	Not felt	Quillota, Region de Valparaiso	Chile
214 km (133 mi) SW of epicenter	Quillota (pop: 67,800)	Not felt	Region de Valparaiso	Chile
222 km (138 mi) SW of epicenter	Lampa (pop: 29,300)	Not felt	Provincia de Chacabuco, Santiago	Chile
224 km (139 mi) SW of epicenter	Limache (pop: 35,900)	Not felt	Provincia de Marga Marga, Region de Valparaiso	Chile
227 km (141 mi) SSW of epicenter	Santiago de Chile (pop: 4,837,300)	Not felt	Provincia de Santiago, Santiago	Chile
229 km (142 mi) SSW of epicenter	Lo Prado (pop: 104,300)	Not felt	Provincia de Santiago, Santiago	Chile
234 km (145 mi) SW of epicenter	Villa Alemana (pop: 97,300)	Not felt	Provincia de Marga Marga, Region de Valparaiso	Chile
239 km (149 mi) SW of epicenter	Quilpué (pop: 130,300)	Not felt	Provincia de Marga Marga, Region de Valparaiso	Chile
246 km (153 mi) SW of epicenter	Viña del Mar (pop: 294,600)	Not felt	Provincia de Valparaiso, Region de Valparaiso	Chile
258 km (160 mi) NW of epicenter	La Serena (pop: 154,500)	Not felt	Provincia de Elqui, Coquimbo Region	Chile
260 km (162 mi) NW of epicenter	Coquimbo (pop: 161,300)	Not felt	Provincia de Elqui, Coquimbo Region	Chile

Notes:
(*) 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
2.5	115 km (71 mi)	2023-11-21 05:15:00	SAN JUAN (Argentina)	INPRES

Most recent quakes Top 20 past 24 hrs Quakes in Chile

Seismograms

Seismic station: Los Peladeros (CO04/C1 network) | Distance from quake: 146 km / 91 mi | Show on map | Station Info

Seismic station Los Peladeros: 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: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Show less

Seismic station Los Peladeros: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Los Peladeros: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Juntas del Toro (CO01/C1 network) | Distance from quake: 197 km / 122 mi | Show on map | Station Info

Seismic station Juntas del Toro: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Juntas del Toro: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Juntas del Toro: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Calan (MT14/C1 network) | Distance from quake: 216 km / 134 mi | Show on map | Station Info

Seismic station Calan: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Calan: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Calan: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: LA SERENA (CO05/C1 network) | Distance from quake: 256 km / 159 mi | Show on map | Station Info

Seismic station LA SERENA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station LA SERENA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station LA SERENA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Tunca (BO01/C1 network) | Distance from quake: 337 km / 210 mi | Show on map | Station Info

Seismic station Tunca: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Tunca: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Tunca: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User-reports for this quake

At magnitude 2.5, this quake might have been felt very close to the epicenter and under calm conditions.

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

Click here to search our database for earlier earthquakes in the same area since 1900!

Try our free app!

Android | iOS version

Why is there advertising on this site?

Support us - Help us upgrade our services!

We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:

Improved multilanguage support
Tsunami alerts
Faster responsiveness

Thanks to your past donations, these features have been added recently:

Design upgrade
Detailed quake stats
Additional seismic data sources

Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS

Thank you!

Stop Russia's Agression - Support Ukraine

Significant parts of this website use brilliant open-source software developed by Ukrainians. Russia's unprovoked war has killed tens of thousands, displaced millions, and the beautiful country of Ukraine is being destroyed. We cannot be silent even if the topic of this website has nothing to do with politics.
If you like to support Ukraine from abroad:
Ukrainians recommend the Come Back Alive charity. For other options, see StandWithUkraine.

Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.

Volcanoes & Earthquakes