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There are no Weekly Reports available for Porak.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|[ 0740 BCE ± 2 years ]||[ Unknown ]||Uncertain|
|0778 BCE ± 5 years||Unknown||Confirmed||Anthropology||SW flank|
|4510 BCE ± 300 years||Unknown||Confirmed||Tephrochronology|
The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. 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. Additional discussion of data sources can be found under Volcano Data Criteria.
Haroutiunian R A, 2006. The historical volcanoes of Armenia and adjacent areas revisited. J Volc Geotherm Res, 155: 334-337.
Karakhanian A, Djrbashian R, Trifonov V, Philip H, Arakelian S, Avagian A, 2002. Holocene-historical volcanism and active faults as natural risk factors for Armenia and adjacent countries. J Volc Geotherm Res, 113: 319-344.
Karakhanian A, Jrbashyan R, Trifonov V, Philip H, Arakelian S, Avagyan A, Baghdassaryan H, Davtian V, 2006. Historical volcanoes of Armenia and adjacent areas: what is revisited?. J Volc Geotherm Res, 155: 338-345.
Karakhanian A, Jrbashyan R, Trifonov V, Philip H, Arakelian S, Avagyan A, Baghdassaryan H, Davtian V, Ghoukassyan Y, 2003. Volcanic hazards in the region of the Armenian nuclear power plant. J Volc Geotherm Res, 126: 31-62.
The mid-Pleistocene Porak volcano lies in the Vardeniss volcanic ridge about 20 km SE of Lake Sevan. The volcanic field straddles the Armenia/Azerbaijan border, and lava flows extend into both countries. The flanks are dotted with 10 satellitic cones and fissure vents. Porak was constructed along the active Pambak-Sevan strike-slip fault, which has bisected the mid-Pleistocene Khonarassar volcano, separating its two halves by about 800 m. Two large lava flows traveled up to 21 km north and NW, and fresh-looking lava flows form peninsulas extending into Lake Alagyol. Fifth century BC petroglyphs were interpreted to depict volcanic eruptions (Karakhanian et al., 2002). Porak is referred to in a famous cuneiform inscription as Mount Bamni, and stratigraphic and archeological evidence indicates that an explosive eruption also producing a lava flow occurred at the time of a military battle dated to 782-773 BCE.