Volcano Name: Asama Smithsonian Inst ID (SI_VNUM): 283110
Alternate Name:
Hanare-yama
Hotokeiwa
Kama-yama
Ko-Asama-yama
Kurofu-yama
Maekake-yama
Okama
Sekison-zan
Volcano Type: Complex volcano(es)
Latitude: 36.4033333300
Longitude: 138.5261111000
Region: Japan, Taiwan, Marianas Sub Region: Honshu
Date Entered: 02/05/2012

Eruption Details

Eruption Start Date: 9 /5 /1783 Date Error:
Eruption End Date: Dating Technique: Historical records
Eruption Date Quality: High quality Preferred Date: Y
Bulk DRE Volume (km3): 0.220 (Literature)
Bulk deposit volume (km3): 0.430 (Literature)
Ignimbrite DRE Volume (km3): 0.150 (Literature)
Ignimbrite Deposit Volume : 0.250 (Literature)
Magnitude : 4.800 (Literature)
Maximum VEI : 4.000 (Literature)
Tephra fall DRE Volume (km3): 0.030 (Literature)
Tephra fall Deposit Volume (km3): 0.130 (Literature)
Magma: Andesite
Calculated Density:
Rock Classification:
Andesite
Eruption Start Date: 1128 Date Error:
Eruption End Date: Dating Technique: Historical records
Eruption Date Quality: High quality Preferred Date: Y
Bulk DRE Volume (km3): 0.280 (Literature)
Bulk deposit volume (km3): 0.700 (Literature)
Magnitude : 4.800 (Literature)
Maximum VEI : 4.000 (Literature)
Tephra fall DRE Volume (km3): 0.280 (Literature)
Tephra fall Deposit Volume (km3): 0.700 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 29/8 /1108 Date Error:
Eruption End Date: Dating Technique: Historical records
Eruption Date Quality: High quality Preferred Date: Y
Bulk DRE Volume (km3): 0.410 (Literature)
Bulk deposit volume (km3): 1.700 (Literature)
Ignimbrite DRE Volume (km3): 0.240 (Literature)
Ignimbrite Deposit Volume : 0.600 (Literature)
Magnitude : 5.100 (Literature)
Maximum VEI : 5.000 (Literature)
Tephra fall DRE Volume (km3): 0.410 (Literature)
Tephra fall Deposit Volume (km3): 1.700 (Literature)
Magma: Andesite
Calculated Density:
Rock Classification:
Andesite
Eruption Start Date: 15/11/350 Date Error: 10
Eruption End Date: Dating Technique: Anthropology
Eruption Date Quality: Medium quality Preferred Date: Y
Bulk DRE Volume (km3): 0.140 (Literature)
Bulk deposit volume (km3): 0.600 (Literature)
Ignimbrite DRE Volume (km3): 0.060 (Literature)
Ignimbrite Deposit Volume : 0.030 (Literature)
Magnitude : 4.400 (Literature)
Maximum VEI : 4.000 (Literature)
Tephra fall DRE Volume (km3): 0.140 (Literature)
Tephra fall Deposit Volume (km3): 0.600 (Literature)
Eruption Start Date: -2550 Date Error: 500
Eruption End Date: Dating Technique: Anthropology
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.260 (Literature)
Bulk deposit volume (km3): 0.660 (Literature)
Magnitude : 4.500 (Literature)
Maximum VEI : 4.000 (Literature)
Magma: Andesite
Calculated Density:
Rock Classification:
Andesite
Eruption Start Date: 5350 BP Date Error: 850
Eruption End Date: Dating Technique: Stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.130 (Literature)
Bulk deposit volume (km3): 0.330 (Literature)
Magnitude : 4.500 (Literature)
Maximum VEI : 4.000 (Literature)
Magma: Andesite
Calculated Density:
Rock Classification:
Andesite
Eruption Start Date: 5350 BP Date Error: 850
Eruption End Date: Dating Technique: Stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.040 (Literature)
Bulk deposit volume (km3): 0.100 (Literature)
Magnitude : 4.000 (Literature)
Maximum VEI : 4.000 (Literature)
Magma: Basalt-Andesite
Calculated Density:
Rock Classification:
Basalt
Andesite
Eruption Start Date: 6050 BP Date Error: 100
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Low quality Preferred Date: Y
C14 Date: 5250 C14 Date Error: 70
Bulk DRE Volume (km3): 0.290 (Literature)
Bulk deposit volume (km3): 0.730 (Literature)
Magnitude : 4.900 (Literature)
Maximum VEI : 4.000 (Literature)
Eruption Start Date: 8350 BP Date Error: 1050
Eruption End Date: Dating Technique: Stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.070 (Literature)
Bulk deposit volume (km3): 0.180 (Literature)
Magnitude : 4.200 (Literature)
Maximum VEI : 4.000 (Literature)
Eruption Start Date: 9150 BP Date Error: 200
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Low quality Preferred Date: Y
C14 Date: 8190 C14 Date Error: 170
Bulk DRE Volume (km3): 0.190 (Literature)
Bulk deposit volume (km3): 0.480 (Literature)
Magnitude : 4.700 (Literature)
Maximum VEI : 4.000 (Literature)
Magma: Andesite
Calculated Density:
Rock Classification:
Andesite
Eruption Start Date: 13100 BP Date Error: 200
Eruption End Date: Dating Technique: Radiocarbon (corrected)
Eruption Date Quality: Medium quality Preferred Date: Y
C14 Date: 11230 C14 Date Error: 250
Bulk DRE Volume (km3): 0.440 (Literature)
Bulk deposit volume (km3): 1.100 (Literature)
Ignimbrite DRE Volume (km3): 0.400 (Literature)
Ignimbrite Deposit Volume : 1.000 (Literature)
Magnitude : 5.000 (Literature)
Maximum VEI : 5.000 (Literature)
Tephra fall DRE Volume (km3): 0.040 (Literature)
Tephra fall Deposit Volume (km3): 0.100 (Literature)
Magma: Dacite
Calculated Density:
Rock Classification:
Dacite
Eruption Start Date: 15800 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: No information Preferred Date: Y
Bulk DRE Volume (km3): 1.050 (Literature)
Bulk deposit volume (km3): > 4.400 (Literature)
Magnitude : <= 6.500 (Literature)
Maximum VEI : 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 18240 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.120 (Literature)
Bulk deposit volume (km3): 0.500 (Literature)
Magnitude : 5.000 (Literature)
Maximum VEI : ? 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 19550 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.120 (Literature)
Bulk deposit volume (km3): 0.500 (Literature)
Magnitude : 5.000 (Literature)
Maximum VEI : ? 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 20800 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): 0.620 (Literature)
Bulk deposit volume (km3): 2.600 (Literature)
Magnitude : 5.300 (Literature)
Maximum VEI : 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 22050 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.040 (Assumed)
Bulk deposit volume (km3): >= 0.100 (Assumed)
Magnitude : 4.000 (Literature)
Maximum VEI : 4.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 23300 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: No information Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.000 (Literature)
Maximum VEI : ? 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 24300 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.300 (Literature)
Maximum VEI : 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 25000 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.500 (Literature)
Maximum VEI : 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 26000 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.040 (Assumed)
Bulk deposit volume (km3): >= 0.100 (Assumed)
Magnitude : 4.500 (Literature)
Maximum VEI : 4.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 26500 BP Date Error:
Eruption End Date: Dating Technique: Radiocarbon and stratigraphy
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.200 (Literature)
Maximum VEI : 5.000 (Literature)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 62000 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.000 (Literature)
Maximum VEI : 5.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 69000 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.000 (Literature)
Maximum VEI : 5.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 73000 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.400 (Assumed)
Bulk deposit volume (km3): >= 1.000 (Assumed)
Magnitude : 5.000 (Literature)
Maximum VEI : 5.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 76000 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.040 (Assumed)
Bulk deposit volume (km3): >= 0.100 (Assumed)
Magnitude : 4.000 (Literature)
Maximum VEI : 4.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:
Eruption Start Date: 92200 BP Date Error:
Eruption End Date: Dating Technique: Not Available
Eruption Date Quality: Low quality Preferred Date: Y
Bulk DRE Volume (km3): >= 0.040 (Assumed)
Bulk deposit volume (km3): >= 0.100 (Assumed)
Magnitude : 4.000 (Literature)
Maximum VEI : 4.000 (Calculated)
Magma: Not Available
Calculated Density:
Rock Classification:

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