Light mag. 4.4 earthquake - 36 km northeast of Isla Crequi Montfort Island, Oruro, Bolivia, on Thursday, Jan 28, 2021 at 4:21 am (GMT -4)
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Light magnitude 4.4 earthquake at 256 km depth
28 Jan 08:40 UTC: First to report: USGS after 19 minutes.
Update Thu, 28 Jan 2021, 08:45
Moderate 4.4 quake hits near Huanuni, Pantaleón Dalence, Oruro, Bolivia4.4 quake 28 Jan 4:21 am (GMT -4)
Just 24 minutes ago, a 4.4-magnitude earthquake struck near Huanuni, Pantaleón Dalence, Oruro, Bolivia. The tremor was recorded early morning on Thursday 28 January 2021 at 4:21 am local time, at an intermediate to considerable depth of 255.5 km below the surface.
The event was filed by the United States Geological Survey (USGS), 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 Challapata (pop. 8,000, 40 km away), Huanuni (pop. 15,500, 46 km away), Llallagua (pop. 28,100, 55 km away), and Oruro (pop. 208,700, 76 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.
The event was filed by the United States Geological Survey (USGS), 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 Challapata (pop. 8,000, 40 km away), Huanuni (pop. 15,500, 46 km away), Llallagua (pop. 28,100, 55 km away), and Oruro (pop. 208,700, 76 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.
Earthquake data
Earthquake details
| Date & time | Jan 28, 2021 08:21:02 UTC |
| Local time at epicenter | Thursday, Jan 28, 2021 at 4:21 am (GMT -4) |
| Status | Confirmed |
| Magnitude | 4.4 |
| Depth | 255.5 km |
| Epicenter latitude / longitude | 18.6557°S / 67.0426°W  (Oruro, Bolivia) |
| Antipode | 18.656°N / 112.957°E |
| Shaking intensity | Very weak shaking |
| Felt | 0 reports |
| Primary data source | USGS (United States Geological Survey) |
| Nearest volcano | Laguna Jayu Khota (97 km / 60 mi) |
| Nearby towns and cities | 40 km (25 mi) NW of Challapata (Eduardo Avaroa) (pop: 8,020) | Show on map | Quakes nearby 46 km (29 mi) SSW of Huanuni (Pantaleón Dalence) (pop: 15,500) | Show on map | Quakes nearby 55 km (34 mi) WSW of Llallagua (Rafael Bustillo, Potosí) (pop: 28,100) | Show on map | Quakes nearby 76 km (47 mi) S of Oruro (pop: 208,700) | Show on map | Quakes nearby 162 km (101 mi) SSW of Quillacollo (Cochabamba) (pop: 87,300) | Show on map | Quakes nearby 169 km (105 mi) SSW of Cochabamba (pop: 900,400) | Show on map | Quakes nearby 170 km (106 mi) NW of Ciudad Potosi (Potosí) (pop: 141,300) | Show on map | Quakes nearby 176 km (109 mi) SW of Sacaba (Cochabamba) (pop: 107,600) | Show on map | Quakes nearby 192 km (119 mi) WNW of Sucre (Chuquisaca) (pop: 224,800) | Show on map | Quakes nearby 267 km (166 mi) SSE of La Paz (pop: 812,800) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Scattered Clouds  8°C (46 F), humidity: 51%, wind: 3 m/s (5 kts) from SW |
| Estimated seismic energy released | 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | about seismic energy |
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 |
| 4.4 | 256 km | 25 Km SW of Totoral, Bolivia | USGS |
| 4.4 | 260 km | ORURO, BOLIVIA | EMSC |
| 4.0 | 280 km | Central Bolivia | GFZ |
| 3.9 | 270 km | Central Bolivia | USP |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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