Russia · Caldera
Krašeninnikov
Krasheninnikov
- Tipo
- Caldera
- Altitudine
- 1816 m
- Ultima eruzione
- 2026
- Tipo
- Caldera
- Paese
- Russia
- Regione
- Pacifico nord-occidentale / Eastern Kamchatka Volcanic Arc
- Altitudine
- 1816 m
- Coordinate
- 54.596, 160.270
- Ultima eruzione
- 2026
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Basalto / Picrobasalto
Sintesi geologica
The late Pleistocene to Holocene Krasheninnikov volcano is comprised of two overlapping stratovolcanoes within a 9 x 10 km Pleistocene caldera. Young lava flows from summit and flank vents descend both into the caldera and down its outer flanks, and older flows that covered much of the SE caldera rim extended downslope at least 7 km. Tephra deposits from the caldera-forming eruption directly overlie a 39,000 years before present (BP) tephra thought to be associated with the formation of Uzon caldera (Florenskii, 1988). The intra-caldera stratovolcanoes are situated along a NE-SW-trending fissure that has also produced zones of Holocene cinder cones extending 15-20 km beyond the caldera. Construction of the southern edifice began about 11,000 years BP and lasted for about 4,500 years; it has a summit crater about 800-900 m wide. The northern edifice was constructed during a cycle of similar length that began about 6,500 years ago; it has a summit crater about 1.5 km wide, within which is low cone with an 800-m-wide crater containing another small cone. An eruptive cycle during about 600-400 years BP (1350-1550 CE) produced the Pauk lava cone in the crater of the northern cone and the Yuzhny lava flow on SW flank outside the caldera, followed by the Molodoy flow from the upper SW flank (Ponomareva, 1987; Ponomareva and Tsyurupa, 1985; Ponomareva and Braitseva, 1990).
Sintesi da Wikipedia
Riassunto in ingleseKrasheninnikov is a complex of two overlapping stratovolcanoes inside a large caldera on the eastern coast of Kamchatka Peninsula, Russia. It is located in Kronotsky Nature Reserve to the south of Lake Kronotskoye, and is named after explorer Stepan Krasheninnikov.
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Storia delle eruzioni
32 registrateGlossarioCronologia dettagliata
- 2025VEI 3Osservata2025-08-02 – 2026-03-25
- 1550VEI ?Stima geologica1550 – fine sconosciutaNorthern cone (Pauk) and SW of S cone
- 1350VEI 0Stima geologica1350 – fine sconosciutaSW flank of southern cone
- 850VEI ?Stima geologica850 – fine sconosciutaNorthern cone
- 750VEI 3Stima geologica750 – fine sconosciutaCentral N cone, SE flank of S cone
- 650VEI 2Stima geologica650 – fine sconosciutaNW flank and central northern cone
- 150 a.C.VEI 4Stima geologica150 a.C. – fine sconosciutaNorthern cone
- 250 a.C.VEI ?Stima geologica250 a.C. – fine sconosciutaNorthern cone
- 350 a.C.VEI ?Stima geologica350 a.C. – fine sconosciutaNorthern cone
- 650 a.C.VEI ?Stima geologica650 a.C. – fine sconosciutaNorthern cone and southern cone flank
- 850 a.C.VEI ?Stima geologica850 a.C. – fine sconosciutaNorthern cone and southern cone flank
- 1000 a.C. (±50 anni)VEI 3Stima geologica1000 a.C. – fine sconosciutaNorthern cone
- 1050 a.C.VEI ?Stima geologica1050 a.C. – fine sconosciutaNorthern cone
- 1150 a.C.VEI ?Stima geologica1150 a.C. – fine sconosciutaNorthern cone
- 1350 a.C.VEI 3Stima geologica1350 a.C. – fine sconosciutaN (Zametny) & S (Duga) flank fissures
- 1650 a.C.VEI ?Stima geologica1650 a.C. – fine sconosciutaNorthern cone
- 2250 a.C.VEI ?Stima geologica2250 a.C. – fine sconosciutaNorthern cone
- 2950 a.C.VEI ?Stima geologica2950 a.C. – fine sconosciutaNorthern cone & N outer flank fissure
- 3250 a.C.VEI ?Stima geologica3250 a.C. – fine sconosciutaNorthern cone
- 3550 a.C.VEI ?Stima geologica3550 a.C. – fine sconosciutaNorthern cone, outer N-flank fissure
- 4450 a.C.VEI ?Stima geologica4450 a.C. – fine sconosciutaNorthern cone
- 4850 a.C.VEI ?Stima geologica4850 a.C. – fine sconosciutaSouthern cone
- 5050 a.C.VEI ?Stima geologica5050 a.C. – fine sconosciutaSouthern cone
- 5250 a.C.VEI ?Stima geologica5250 a.C. – fine sconosciutaNorthern outer flank fissure
- 5450 a.C.VEI ?Stima geologica5450 a.C. – fine sconosciutaSouthern cone
- 5800 a.C. (±50 anni)VEI 4Stima geologica5800 a.C. – fine sconosciutaSouthern cone summit and west flank
- 6000 a.C. (±50 anni)VEI 4Stima geologica6000 a.C. – fine sconosciutaSouthern cone summit and flank
- 6250 a.C.VEI ?Stima geologica6250 a.C. – fine sconosciutaNorthern outer flank fissure
- 6350 a.C.VEI ?Stima geologica6350 a.C. – fine sconosciutaSouthern cone summit and flank
- 6550 a.C.VEI ?Stima geologica6550 a.C. – fine sconosciutaSouthern cone summit, outer SW flank
- 7250 a.C.VEI ?Stima geologica7250 a.C. – fine sconosciutaSouthern cone & S outer flank fissure
- 8050 a.C.VEI ?Stima geologica8050 a.C. – fine sconosciutaSouthern cone & S outer flank fissure
Vulcani nelle vicinanze
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