San José

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San José volcano

stratovolcano 5856 m / 19,212 ft
Central Chile and Argentina, South America, -33.78°S / -69.9°W
Current status: dormant (1 out of 5)

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Typical eruption style: explosive
San José volcano eruptions: 960, 1959, 1895-97, 1889-90, 1881, 1822-38
Last earthquakes nearby: No recent earthquakes

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Location

Volcán San José volcano on the Chile-Argentina lies at the southern end of a volcano group that includes the older volcanoes of Marmolejo and Espíritu Santo. San José volcano has a broad 2 km x 0.5 km summit region with overlapping and nested craters, pyroclastic cones, and blocky lava flows.
Historic activity recorded since 1822 consisted in mild phreatomagmatic ash eruptions.

Background:

The glaciated 6109-m-high Marmolejo stratovolcano is truncated by a 4-km-wide caldera, breached to the NW, that has been the source of a massive debris avalanche. Volcán la Engorda and Volcán Plantat, located SW of Marmolejo and NW of San Jose, have also been active during the Holocene.
An 8-km-long lava flow traveled to the SW from the 1-km-wide summit crater of Espíritu Santo volcano, which overlaps the southern slope of Marmolejo.
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Source: GVP

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