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Ksudach   »  Eruptive History

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Ksudach

Start Date: 1907  Mar 28 (?) Stop Date: Unknown

Dating Technique: Historical Records

Volcanic Explosivity Index (VEI):  5

Tephra Volume:  2.4  x  109 m3

Area of Activity: Stubel (tephra layer KSht3)

Eruptive Characteristics:
    Central vent eruption
    Crater lake eruption
    Explosive eruption
    Pyroclastic flow(s)

Start Date: 1750 (?)  Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  4

Tephra Volume:  4.5  ±  0.5  x  108 m3

Area of Activity: Stubel (tephra layer KSht2)

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption
    Mudflow(s) (lahars)

Start Date: 1000 ± 50 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  4+

Tephra Volume:  9.0  ±  1.0  x  108 m3

Area of Activity: Stubel (tephra layer KSht1)

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption
    Pyroclastic flow(s)

Start Date: 700 AD (?)  Stop Date: Unknown

Dating Technique: Tephrochronology

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption

Start Date: 350 AD (?)  Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  2

Tephra Volume:  106 m3

Area of Activity: Stubel

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption
    Lava dome extrusion  (?)

Start Date: 240 AD ± 100 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  6

Tephra Volume:  2.3  ±  0.3  x  1010 m3

Area of Activity: Ksudach V caldera (tephra layer KS1)

Eruptive Characteristics:
    Central vent eruption
    Crater lake eruption
    Explosive eruption
    Pyroclastic flow(s)
    Caldera collapse

Start Date: 200 BC (?)  Stop Date: Unknown

Dating Technique: Tephrochronology

Volcanic Explosivity Index (VEI):  3

Tephra Volume:  107 m3

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption

Start Date: 3000 BC (?)  Stop Date: Unknown

Dating Technique: Tephrochronology

Volcanic Explosivity Index (VEI):  4

Tephra Volume:  5  x  108 m3

Area of Activity: (tephra layer KSbt)

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption
    Pyroclastic flow(s)

Start Date: 4100 BC (?)  Stop Date: Unknown

Dating Technique: Tephrochronology

Volcanic Explosivity Index (VEI):  3

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption

Start Date: 4550 BC (?)  Stop Date: Unknown

Dating Technique: Tephrochronology

Volcanic Explosivity Index (VEI):  3

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption

Start Date: 4750 BC (?)  Stop Date: Unknown

Dating Technique: Tephrochronology

Lava Volume:  > 4.5  ±  0.5  x  108 m3

Area of Activity: SW part of caldera IV (Paryashchiy Utes)

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption
    Lava dome extrusion

Start Date: 4900 BC (?)  Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  5+

Tephra Volume:  7.9  ±  0.4  x  109 m3

Area of Activity: Ksudach IV caldera (tephra layer KS2)

Eruptive Characteristics:
    Central vent eruption
    Crater lake eruption
    Explosive eruption
    Pyroclastic flow(s)
    Caldera collapse

Start Date: 5200 BC (?)  Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  5?

Tephra Volume:  2.6  ±  0.1  x  109 m3

Area of Activity: Ksudach IV caldera (tephra layer KS3)

Eruptive Characteristics:
    Central vent eruption
    Crater lake eruption
    Explosive eruption
    Pyroclastic flow(s)
    Caldera collapse

Start Date: 5600 BC (?)  Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Central vent eruption
    Explosive eruption

Start Date: 7900 BC (?)  Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI):  5

Tephra Volume:  1.8  ±  0.3  x  109 m3

Area of Activity: Ksudach III caldera (tephra layer KS4)

Eruptive Characteristics:
    Central vent eruption
    Crater lake eruption
    Explosive eruption
    Pyroclastic flow(s)
    Caldera collapse


Global Volcanism ProgramDepartment of Mineral SciencesNational Museum of Natural HistorySmithsonian Institution

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