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Light mag. 3.7 earthquake - 70 km west of Chilecito, La Rioja, Argentina, on Wednesday, Jan 25, 2023 at 9:15 pm (GMT -3) -

Updated: Jan 27, 2023 03:23 GMT -
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Light mag. 3.7 earthquake - 70 km west of Chilecito, La Rioja, Argentina, on Wednesday, Jan 25, 2023 at 9:15 pm (GMT -3) Light mag. 3.7 earthquake - 70 km west of Chilecito, La Rioja, Argentina, on Wednesday, Jan 25, 2023 at 9:15 pm (GMT -3)

Light magnitude 3.7 earthquake at 10 km depth

26 Jan 00:22 UTC: First to report: EMSC after 7 minutes.
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Earthquake details

Date & timeJan 26, 2023 00:15:30 UTC -
Local time at epicenterWednesday, Jan 25, 2023 at 9:15 pm (GMT -3)
Depth10.0 km
Epicenter latitude / longitude29.04°S / 68.2°W (General Lamadrid, La Rioja, Argentina)
Antipode29.04°N / 111.8°E
Shaking intensityWeak shaking
Felt1 report
Primary data sourceEMSC (European-Mediterranean Seismological Centre)
Nearest volcanoTipas (208 km / 129 mi)
Nearby towns and cities31 km (19 mi) S of Vinchina (pop: 2,830) | Show on map | Quakes nearby
70 km (43 mi) W of Chilecito (pop: 42,200) | Show on map | Quakes nearby
118 km (73 mi) WNW of Villa Bustos (pop: 2,170) | Show on map | Quakes nearby
125 km (78 mi) SSW of Tinogasta (Catamarca) (pop: 14,500) | Show on map | Quakes nearby
137 km (85 mi) WNW of Rioja (pop: 162,600) | Show on map | Quakes nearby
144 km (89 mi) NNE of San José de Jachal (San Juan) (pop: 21,000) | Show on map | Quakes nearby
146 km (91 mi) WSW of Arauco (pop: 13,700) | Show on map | Quakes nearby
162 km (101 mi) SSW of Fiambala (Catamarca) (pop: 8,060) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 28.4°C (83 F), humidity: 35%, wind: 6 m/s (11 kts) from S
Estimated seismic energy released2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 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.
3.710 kmSan Juan Province, ArgentinaRaspberryShake


Seismic station: El Transito (AC05/C1 network) | Distance from quake: 203 km / 126 mi | Show on map | Station Info
Seismic station El Transito: 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
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Villa Unión / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : Sentimos el temblor mientras estábamos sentados en una mesita afuera de una heladería  

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