The launch of a new GVP website is scheduled for Monday, May 20, 2013.
| Start Date: 2010 Jul 2 | Stop Date: 2010 Jul 9 ± 7 days |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 |
Eruptive Characteristics:
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| Start Date: 2009 Feb 11 | Stop Date: 2009 Jul 13 (?) |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 |
Eruptive Characteristics:
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| Start Date: 2005 Jan 29 | Stop Date: 2005 Feb 16 |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 2 |
Eruptive Characteristics:
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| Start Date: 1991 Jan | Stop Date: 1991 Jan |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 Area of Activity: Northern crater |
Eruptive Characteristics:
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| Start Date: 1989 Feb 2 | Stop Date: 1990 Apr 15 ± 5 days |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 2 Tephra Volume: 1.3 x 106 m3 Area of Activity: Northern crater and upper east flank |
Eruptive Characteristics:
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| Start Date: 1987 Oct 14 | Stop Date: 1988 Jan |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 Tephra Volume: 6.7 x 104 m3 Area of Activity: Northern crater |
Eruptive Characteristics:
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| Start Date: 1971 | |
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Eruption is UNCERTAIN Volcanic Explosivity Index (VEI): 1 Area of Activity: Northern crater |
Eruptive Characteristics:
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| Start Date: 1969 Feb | Stop Date: 1969 Feb (?) |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 Area of Activity: Northern crater |
Eruptive Characteristics:
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| Start Date: 1967 Jan | Stop Date: 1967 Apr (?) |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 Tephra Volume: 5.5 ± 0.5 x 104 m3 Area of Activity: Northern crater |
Eruptive Characteristics:
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| Start Date: 1965 Aug (?) | Stop Date: 1965 Aug (?) |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 Area of Activity: Middle Crater |
Eruptive Characteristics:
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| Start Date: 1963 Mar 8 | Stop Date: 1964 |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 1 Tephra Volume: 1 x 103 m3 Area of Activity: North wall of east amphitheater |
Eruptive Characteristics:
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| Start Date: 1934 Oct 4 | Stop Date: 1935 Oct 15 ± 45 days |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 2 Tephra Volume: 6.7 x 105 m3 Area of Activity: Sredniy crater |
Eruptive Characteristics:
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| Start Date: 1859 Sep 27 | Stop Date: Unknown |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 2 |
Eruptive Characteristics:
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| Start Date: 1833 Dec 31 ± 365 days | Stop Date: Unknown |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 2 |
Eruptive Characteristics:
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| Start Date: 1793 | Stop Date: Unknown |
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Dating Technique: Historical Records Volcanic Explosivity Index (VEI): 2 Tephra Volume: 105 m3 |
Eruptive Characteristics:
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| Start Date: 1670 (?) | Stop Date: Unknown |
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Dating Technique: Radiocarbon (uncorrected) |
Eruptive Characteristics:
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| Start Date: 1650 (?) | Stop Date: Unknown |
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Dating Technique: Radiocarbon (uncorrected) |
Eruptive Characteristics:
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| Start Date: 1600 (?) | Stop Date: Unknown |
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Dating Technique: Radiocarbon (uncorrected) |
Eruptive Characteristics:
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| Start Date: 390 BC ± 75 years | Stop Date: Unknown |
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Dating Technique: Radiocarbon (uncorrected) |
Eruptive Characteristics:
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