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Minor mag. 2.8 earthquake - 35 km west of Vinchina, La Rioja, Argentina, on Friday, Dec 2, 2022 at 1:45 pm (GMT -3) -

Minor magnitude 2.8 earthquake at 106 km depth

2 Dec 16:52 UTC: First to report: INPRES after 7 minutes.
2 Dec 17:52: Magnitude recalculated from 2.5 to 2.9. Hypocenter depth recalculated from 97.0 to 105.0 km (from 60 to 65 mi). Epicenter location corrected by 0.6 km (0.4 mi) towards SE.
2 Dec 18:26: Magnitude recalculated from 2.9 to 2.8. Hypocenter depth recalculated from 105.0 to 106.0 km (from 65 to 66 mi). Epicenter location corrected by 4.1 km (2.5 mi) towards SE.

Earthquake details

Date & time	Dec 2, 2022 16:45:00 UTC -
Local time at epicenter	Friday, Dec 2, 2022 at 1:45 pm (GMT -3)
Status	Confirmed
Magnitude	2.8
Depth	106.0 km
Epicenter latitude / longitude	28.792°S / 68.559°W (Departamento de Vinchina, La Rioja, Argentina)
Antipode	28.792°N / 111.441°E
Shaking intensity	Not felt
Felt
Primary data source	INPRES
Nearest volcano	Tipas (177 km / 110 mi)
Nearby towns and cities	35 km (21 mi) W of Vinchina (pop: 2,830) \| Show on map \| Quakes nearby 127 km (79 mi) SW of Tinogasta (Catamarca) (pop: 14,500) \| Show on map \| Quakes nearby 180 km (112 mi) WNW of Rioja (pop: 162,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 19.6°C (67 F), humidity: 33%, wind: 4 m/s (8 kts) from ENE
Estimated seismic energy released	1 x 10⁹ joules (278 kilowatt hours, equivalent to 0.239 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
2.8	106 km	LA RIOJA (Argentina)	INPRES

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User reports for this quake

At magnitude 2.8, 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.

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