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San Pedro volcano

stratovolcano 6145 m / 20,161 ft
Northern Chile, Bolivia and Argentina, South America, -21.88°S / -68.4°W
Current status: normal or dormant (1 out of 5) | Reports
San Pedro volcano books
Typical eruption style: explosive and effusive
San Pedro volcano eruptions: 1960(?), 1938, 1923(?), 1917(?), 1916(?), 1911, 1901, 1891(?), 1877(?), 1870(?)
TimeMag. / DepthDistanceLocation
Thu, 29 Oct 2020 (UTC)
29 Oct 8:13 am (GMT -3) (29 Oct 11:13:28 UTC)M 2.5 / 127.1 km9 km74 Km Al S De Ollagüe, Chile
Wed, 28 Oct 2020 (UTC)
28 Oct 6:45 pm (GMT -3) (28 Oct 21:45:18 UTC)M 2.6 / 115.6 km15 km74 Km Al NE De Calama, Chile
Sun, 25 Oct 2020 (UTC)
25 Oct 10:12 am (GMT -3) (25 Oct 13:12:42 UTC)M 3.5 / 124.6 km20 km68 Km Al NE De Calama, Chile
Fri, 23 Oct 2020 (UTC)
23 Oct 2:40 pm (GMT -3) (23 Oct 17:40:41 UTC)M 2.9 / 125 km19 km73 Km NNE of Calama, Chile
Wed, 21 Oct 2020 (UTC)
21 Oct 5:32 am (GMT -3) (21 Oct 08:32:16 UTC)M 2.8 / 111.8 km16 km70 Km Al SO De Ollagüe, Chile
View all recent quakes
San Pedro volcano in the Atacama desert of northern Chile is one of the highest active volcanoes in the world.
San Pedro volcano is a twin volcano with 2 peaks, San Pedro (the western summit) and the older sister volcano San Pablo (6092 m) in the east.

A large debris avalanche, similar to the one at Mt St Helend in 1980, occurred at San Pedro in the past, and the present-day cone grew within the depression. The debris avalanche deposit is visible on the western lower slopes of San Pedro.
Thick dacitic lava flows with steep-sided fronts cover the upper slopes of San Pedro's cone which has a crater. There is a young-looking scoria cone on the western flank (La Poruña), which erupted an 8 km-long lava flow about 103,000 years ago.
Reports of varying degrees of reliability have recorded a number of eruptions in the past centuries.

Note: a volcano with the same name is at Lake Atitlán in the Guatemalan Highlands, forming the prominent group of San Pedro, Tolimán, and Atitlán volcanoes.

San Pedro Photos:

Atitlán, Toliman, and San Pedro volcanoes (Photo: Tom Pfeiffer)
Atitlán, Toliman, and San Pedro volcanoes (Photo: Tom Pfeiffer)
Early morning at the shore of Lake Atitlán with Atitlán, Toliman and San Pedro volcanoes in the background (Photo: Tom Pfeiffer)
Early morning at the shore of Lake Atitlán with Atitlán, Toliman and San Pedro volcanoes in the background (Photo: Tom Pfeiffer)
Sunrise above the Lake Atitlán with Atitlán, Toliman and San Pedro volcanoes behind (Photo: Tom Pfeiffer)
Sunrise above the Lake Atitlán with Atitlán, Toliman and San Pedro volcanoes behind (Photo: Tom Pfeiffer)
 


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