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
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
[hide map] [enlarge map]
Typical eruption style: explosive and effusive
San Pedro volcano eruptions: 1960(?), 1938, 1923(?), 1917(?), 1916(?), 1911, 1901, 1891(?), 1877(?), 1870(?)
View all recent quakes
San Pedro volcano eruptions: 1960(?), 1938, 1923(?), 1917(?), 1916(?), 1911, 1901, 1891(?), 1877(?), 1870(?)
| Time | Mag. / Depth | Distance | Location |
| Thu, 29 Oct 2020 (UTC) | |||
| 29 Oct 8:13 am (GMT -3) (29 Oct 11:13:28 UTC) | M 2.5 / 127.1 km | 9 km | 74 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 km | 15 km | 74 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 km | 20 km | 68 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 km | 19 km | 73 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 km | 16 km | 70 Km Al SO De Ollagüe, Chile |
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)
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)
Latest satellite images
See also: Sentinel hub | Landsat 8
More on VolcanoDiscovery
Redating the Minoan eruption of Santorini: A 3600 y.o. fossil olive tree discovered in the Minoan pumice allows to refine the date of the Minoan eruption on Santorini to the 17th century B.C.
Exploring the unknown: We sometimes invite you to "test" new itineraries or destinations with us. Such trips are a reduced cost and require a higher degree of flexibility, but often offer a great deal of adventure.
Best tours to see lava: Visiting an erupting volcano is an unforgettable experience. If you're particularly looking to see "Red Hot Lava", these are among the best places to go to.
