- Info & Contacts
The Global Volcanism Program has no activity reports for Tri Sestry.
The Global Volcanism Program has no Weekly Reports available for Tri Sestry.
The Global Volcanism Program has no Bulletin Reports available for Tri Sestry.
Tri Sestry, located on the shore of the Sea of Okhotsk in central Urup Island, is an eroded andesitic stratovolcano whose flanks are cut by deep ravines. A summit lava dome on Tri Sestry ("Three Sisters") was active during either the late Pleistocene or early Holocene (Gorshkov, 1970). Hot springs along the coast mark its latest activity.
The Global Volcanism Program is not aware of any Holocene eruptions from Tri Sestry. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Tri Sestry page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
The Global Volcanism Program has no synonyms or subfeatures listed for Tri Sestry.
|The vegetated volcano located on the shore of the Sea of Okhotsk (left) in the left-center portion of this Landsat image of central Urup Island is Tri Sestry volcano ("Three Sisters"). The flanks of this eroded andesitic stratovolcano are cut by deep ravines. A summit lava dome was active during either the late Pleistocene or early Holocene, and hot springs along the coast mark the latest activity. The crater lake of Rudakov volcano is visible at the lower left.
NASA Landsat image, 2002 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology).
The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.
Gorshkov G S, 1970. Volcanism and the Upper Mantle; Investigations in the Kurile Island Arc. New York: Plenum Publishing Corp, 385 p.