San Pedro volcan
stratovolcan 6145 m / 20,161 ft
Chile / Argentine (nord) + Bolivie, South America, -21.88°S / -68.4°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
San Pedro livres
Chile / Argentine (nord) + Bolivie, South America, -21.88°S / -68.4°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
San Pedro livres
Style éruptif tipique: explosive and effusive
Eruptions du volcan San Pedro: 1960(?), 1938, 1923(?), 1917(?), 1916(?), 1911, 1901, 1891(?), 1877(?), 1870(?)
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Eruptions du volcan San Pedro: 1960(?), 1938, 1923(?), 1917(?), 1916(?), 1911, 1901, 1891(?), 1877(?), 1870(?)
| Heure | Mag. / Depth | Distance | Location |
| Wed, 12 Dec | |||
| Wed, 12 Dec 22:28 UTC | M 2.7 / 113.6 km | 15 km | 70 km al SO de Ollagüe |
| Wed, 12 Dec 18:34 UTC | M 3.3 / 112.5 km | 37 km | 51 km al NE de Calama |
| Wed, 12 Dec 15:29 UTC | M 3.0 / 111.3 km | 31 km | 54 km al NE de Calama |
| Wed, 12 Dec 14:26 UTC | M 3.2 / 114 km | 16 km | ANTOFAGASTA, CHILE |
| Tue, 11 Dec | |||
| Tue, 11 Dec 22:48 UTC | M 2.6 / 123.2 km | 36 km | 42 km al SO de Ollagüe |
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:
 Les volcans Atitlán, Toliman et San Pedro (Photo: Tom Pfeiffer) |  Matin au bord du Lac Atitlán avec le fond des volcans Atitlán, Toliman et San Pedro (Photo: Tom Pfeiffer) |
 Lever du soleil au dessus du Lac Atitlán avec les volcans Atitlán, Toliman et San Pedro (Photo: Tom Pfeiffer) |
 The caldera of Laka Atitlán, Guatemala, in the morning. San Pedro, Atitlán and Toliman volcanoes in the background. (Photo: Tom Pfeiffer) |  Volcano San Pedro at Atitlan Caldera Lake sunset, Guatemala (Photo: WNomad) |  Volcanoes Toliman, Atitlan and San Pedro at Atitlan Lake, Panajachel, Guatemala (Photo: WNomad) |
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