Antuco volcano

Updated: Jul 6, 2022 16:07 GMT - Refresh
stratovolcano 2979 m / 9,774 ft
Central Chile and Argentina (South America), -37.41°S / -71.35°W
Current status: normal or dormant (1 out of 5)
Last update: 15 Dec 2021 (Volcanic Ash Advisory)

Antuco volcano in central Chile rises majestically above the SW shore of Laguna de la Laja. Antuco is one of Chile's more active volcanoes. Mild explosive eruptions were recorded in the 18th and 19th centuries from both summit and flank vents, and historical lava flows have traveled into the Río Laja drainage.

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Typical eruption style: explosive
Antuco volcano eruptions: 1869, 1863, 1862, 1861, 1852-53, 1848, 1845, 1839, 1828, 1820, 1806, 1752, 1750
Lastest nearby earthquakes: No recent earthquakes

Background

The formation of Antuco volcano followed the older stratovolcanoes of the basaltic-to-andesitic Sierra Veluda and Cerro Condor.
Antuco volcano itself of two units, separated by a caldera collapse, and are referred to as Antuco I and Antuco II, and a flank cone. Antuco I grew until about 10,000 years ago to form a 10 km diameter stratovolcano. Its end was marked by a large sector collapse, producing a large debris avalanche which traveled down the Río Laja to the west and left a large 5-km-wide horseshoe-shaped caldera breached to the west.
Afterwards, new activity built a new cone, now rising over 1000 m, inside the caldera, Antuco II, and a parasitic cone on the NE flank of the Antuco I.


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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