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Light mag. 4.4 earthquake - 52 km south of Oruro, Bolivia, on Monday, Oct 4, 2021 at 9:19 pm (GMT -4) -

Light mag. 4.4 earthquake - 52 km south of Oruro, Bolivia, on Monday, Oct 4, 2021 at 9:19 pm (GMT -4) Light mag. 4.4 earthquake - 52 km south of Oruro, Bolivia, on Monday, Oct 4, 2021 at 9:19 pm (GMT -4)

Light magnitude 4.4 earthquake at 257 km depth

5 Oct 01:31 UTC: First to report: USGS after 11 minutes.
5 Oct 23:08: Hypocenter depth recalculated from 263.4 to 257.2 km (from 164 to 160 mi). Epicenter location corrected by 4 km (2.5 mi) towards E.
Update Tue, 5 Oct 2021, 01:36
Moderate magnitude 4.4 earthquake 52 km south of Oruro, Bolivia
4.4 quake 52 km south of Oruro, Bolivia, Oct 4, 2021 9:19 pm (GMT -4)
4.4 quake 52 km south of Oruro, Bolivia, Oct 4, 2021 9:19 pm (GMT -4)
Just 16 minutes ago, a 4.4-magnitude earthquake struck near Oruro, Bolivia. The tremor was recorded in the evening on Monday, October 4th, 2021, at 9:19 pm local time, at an intermediate to considerable depth of 263.4 km below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.4 as well.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Huanuni (pop. 15,500, 33 km away), Oruro (pop. 208,700, 52 km away), Llallagua (pop. 28,100, 54 km away), and Challapata (pop. 8,000, 61 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.

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Earthquake data

Earthquake details

Date & timeOct 5, 2021 01:19:55 UTC -
Local time at epicenterMonday, Oct 4, 2021 at 9:19 pm (GMT -4)
Depth257.2 km
Epicenter latitude / longitude18.4462°S / 67.0619°W (Oruro, Bolivia)
Antipode18.446°N / 112.938°E
Shaking intensityVery weak shaking
Felt2 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoLaguna Jayu Khota (116 km / 72 mi)
Nearby towns and cities30 km (18 mi) SW of Huanuni (Pantaleón Dalence) (pop: 15,500) | Show on map | Quakes nearby
50 km (31 mi) W of Llallagua (Rafael Bustillo, Potosí) (pop: 28,100) | Show on map | Quakes nearby
52 km (33 mi) S of Oruro (pop: 208,700) | Show on map | Quakes nearby
59 km (37 mi) NNW of Challapata (Eduardo Avaroa) (pop: 8,020) | Show on map | Quakes nearby
144 km (89 mi) SW of Quillacollo (Cochabamba) (pop: 87,300) | Show on map | Quakes nearby
152 km (94 mi) SW of Cochabamba (pop: 900,400) | Show on map | Quakes nearby
159 km (99 mi) SW of Sacaba (Cochabamba) (pop: 107,600) | Show on map | Quakes nearby
187 km (116 mi) NW of Ciudad Potosi (Potosí) (pop: 141,300) | Show on map | Quakes nearby
200 km (125 mi) WNW of Sucre (Chuquisaca) (pop: 224,800) | Show on map | Quakes nearby
245 km (152 mi) SSE of La Paz (pop: 812,800) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 10.5°C (51 F), humidity: 55%, wind: 7 m/s (13 kts) from NNE
Estimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 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.
4.4257 km12 Km SW of Poopó, BoliviaUSGS
4.2254 kmCentral BoliviaGFZ
4.2257 kmCentral BoliviaUSP

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Send your own user report!
La Paz (241.2 km NNW of epicenter) [Map] / not felt : Un leve parpadeo de luces y leve movimiento casi imperceptibles (reported through our app)  
Bryant AR / Light shaking (MMI IV) / complex motion difficult to describe : There was an incredibly odd feeling under my feet when I was standing on the patio, in the garage doorway - it felt like the ground below the concrete was lifting up, but not rolling, like usual. There is a deep sound of explosions and heavy thump deep in  
santa rosa / Very weak shaking (MMI II)
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