San Pedro Volcano

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 volcano eruptions: 1960(?), 1938, 1923(?), 1917(?), 1916(?), 1911, 1901, 1891(?), 1877(?), 1870(?)
Latest nearby earthquakes
Date and Time | Mag / Depth | Distance / Location | |||
---|---|---|---|---|---|
Jul 2, 10:25 am (GMT -4) | 3.1 112 km | 29 km (18 mi) to the SW | ![]() | Info | |
Tuesday, July 1, 2025 GMT (1 quake) | |||||
Jul 1, 02:15 am (Universal Time) | 3.3 134 km | 25 km (16 mi) to the N | ![]() | Info | |
Saturday, June 28, 2025 GMT (1 quake) | |||||
Jun 28, 02:15 pm (Universal Time) | 2.8 115 km | 16 km (9.8 mi) to the W | ![]() | Info | |
Thursday, June 26, 2025 GMT (1 quake) | |||||
Jun 26, 05:59 pm (GMT -4) | 2.8 112 km | 24 km (15 mi) to the W | ![]() | Info | |
Monday, June 23, 2025 GMT (1 quake) | |||||
Jun 23, 10:18 am (Santiago) | 3.1 107 km | 25 km (16 mi) to the NW | ![]() | Info | |
Sunday, June 22, 2025 GMT (1 quake) | |||||
Jun 21, 09:30 pm (Santiago) | 3.1 123 km | 28 km (17 mi) to the NW | ![]() | Info | |
Saturday, June 21, 2025 GMT (1 quake) | |||||
Jun 21, 07:08 pm (Santiago) | 3.6 131 km | 19 km (12 mi) to the NW | ![]() | Info | |
Thursday, June 19, 2025 GMT (1 quake) | |||||
Jun 19, 05:40 pm (Santiago) | 3.7 139 km | 21 km (13 mi) to the W | ![]() | Info |
San Pedro Volcano Photos




Significant volcanic eruptions: San Pedro volcano
No historic eruptions are known from San Pedro volcano, but at least one eruption ###WHEN2### can be inferred from geological evidence|evidence from at least ###NUM_CONFIRMED### eruptions during the past 10,000 years can be found in the geological record.
There are only 10 uncertain or discredited eruptions from San Pedro volcano during the past 10,000 years.
Date | Note | VEI | Deaths | Damage | |
---|---|---|---|---|---|
?? | Uncertain Eruption Historical obs./docs. | 2 | |||
?? | Uncertain Eruption Historical obs./docs. | 2 | |||
?? | Uncertain Eruption | ? | |||
?? | Uncertain Eruption | ? | |||
?? | Uncertain Eruption | ? | |||
?? | Uncertain Eruption Historical obs./docs. | 2 | |||
?? | Uncertain Eruption Historical obs./docs. | 2 | |||
?? | Uncertain Eruption Historical obs./docs. | 2 | |||
?? | Uncertain Eruption Historical obs./docs. | 2 | |||
?? | Uncertain Eruption | ? |
Latest satellite images
San Pedro Volcano Maps





















