Rusia · Kaldera
Krasheninnikov
- Tipe
- Kaldera
- Ketinggian
- 1816 m
- Letusan terakhir
- 2026
- Tipe
- Kaldera
- Negara
- Rusia
- Wilayah
- Pasifik Barat Laut / Eastern Kamchatka Volcanic Arc
- Ketinggian
- 1816 m
- Koordinat
- 54.596, 160.270
- Letusan terakhir
- 2026
- Kondisi tektonik
- Zona subduksi / Kerak benua (> 25 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Basal / Pikrobasal
Ringkasan geologi
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).
Ringkasan Wikipedia
Ringkasan InggrisKrasheninnikov 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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Riwayat letusan
32 tercatatGlosariumGaris waktu rinci
- 2025VEI 3Teramati2025-08-02 – 2026-03-25
- 1550VEI ?Perkiraan geologi1550 – akhir tidak diketahuiNorthern cone (Pauk) and SW of S cone
- 1350VEI 0Perkiraan geologi1350 – akhir tidak diketahuiSW flank of southern cone
- 850VEI ?Perkiraan geologi850 – akhir tidak diketahuiNorthern cone
- 750VEI 3Perkiraan geologi750 – akhir tidak diketahuiCentral N cone, SE flank of S cone
- 650VEI 2Perkiraan geologi650 – akhir tidak diketahuiNW flank and central northern cone
- 150 SMVEI 4Perkiraan geologi150 SM – akhir tidak diketahuiNorthern cone
- 250 SMVEI ?Perkiraan geologi250 SM – akhir tidak diketahuiNorthern cone
- 350 SMVEI ?Perkiraan geologi350 SM – akhir tidak diketahuiNorthern cone
- 650 SMVEI ?Perkiraan geologi650 SM – akhir tidak diketahuiNorthern cone and southern cone flank
- 850 SMVEI ?Perkiraan geologi850 SM – akhir tidak diketahuiNorthern cone and southern cone flank
- 1000 SM (±50 tahun)VEI 3Perkiraan geologi1000 SM – akhir tidak diketahuiNorthern cone
- 1050 SMVEI ?Perkiraan geologi1050 SM – akhir tidak diketahuiNorthern cone
- 1150 SMVEI ?Perkiraan geologi1150 SM – akhir tidak diketahuiNorthern cone
- 1350 SMVEI 3Perkiraan geologi1350 SM – akhir tidak diketahuiN (Zametny) & S (Duga) flank fissures
- 1650 SMVEI ?Perkiraan geologi1650 SM – akhir tidak diketahuiNorthern cone
- 2250 SMVEI ?Perkiraan geologi2250 SM – akhir tidak diketahuiNorthern cone
- 2950 SMVEI ?Perkiraan geologi2950 SM – akhir tidak diketahuiNorthern cone & N outer flank fissure
- 3250 SMVEI ?Perkiraan geologi3250 SM – akhir tidak diketahuiNorthern cone
- 3550 SMVEI ?Perkiraan geologi3550 SM – akhir tidak diketahuiNorthern cone, outer N-flank fissure
- 4450 SMVEI ?Perkiraan geologi4450 SM – akhir tidak diketahuiNorthern cone
- 4850 SMVEI ?Perkiraan geologi4850 SM – akhir tidak diketahuiSouthern cone
- 5050 SMVEI ?Perkiraan geologi5050 SM – akhir tidak diketahuiSouthern cone
- 5250 SMVEI ?Perkiraan geologi5250 SM – akhir tidak diketahuiNorthern outer flank fissure
- 5450 SMVEI ?Perkiraan geologi5450 SM – akhir tidak diketahuiSouthern cone
- 5800 SM (±50 tahun)VEI 4Perkiraan geologi5800 SM – akhir tidak diketahuiSouthern cone summit and west flank
- 6000 SM (±50 tahun)VEI 4Perkiraan geologi6000 SM – akhir tidak diketahuiSouthern cone summit and flank
- 6250 SMVEI ?Perkiraan geologi6250 SM – akhir tidak diketahuiNorthern outer flank fissure
- 6350 SMVEI ?Perkiraan geologi6350 SM – akhir tidak diketahuiSouthern cone summit and flank
- 6550 SMVEI ?Perkiraan geologi6550 SM – akhir tidak diketahuiSouthern cone summit, outer SW flank
- 7250 SMVEI ?Perkiraan geologi7250 SM – akhir tidak diketahuiSouthern cone & S outer flank fissure
- 8050 SMVEI ?Perkiraan geologi8050 SM – akhir tidak diketahuiSouthern cone & S outer flank fissure
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Tautan eksternal
⚠ Untuk referensi saja. Bukan untuk tanggap darurat.