| Volcano Name: | Akan | Smithsonian Inst ID (SI_VNUM): | 285070 |
| Alternate Name: |
Akan-Fuji Akan-Huzi Akan-Kohan Fuppushi Furebetsu Futatsu-dake Higashi-dake Higasi-dake Huppusi Hurebetu Kenga-mine Kita-yama Kobu-yama Me-Akan Minami-dake Nakamachineshiri Nakamatineshiri Nishi-yama Nisi-yama O-Akan Ponmachineshiri Ponmatinesiri |
Volcano Type: | Caldera(s) |
| Latitude: | 43.3841666700 | ||
| Longitude: | 144.0127778000 | ||
| Region: | Japan, Taiwan, Marianas | Sub Region: | Hokkaido |
| Date Entered: | 02/05/2012 |
| Eruption Start Date: | -50 | Date Error: | ||
| Eruption End Date: | Dating Technique: | Radiocarbon (corrected) | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 0.400 (Calculated) | ||
| Bulk deposit volume (km3): | 1.000 (Literature) | ||
| Magnitude : | 5.000 (Calculated) | ||
| Maximum VEI : | 4.000 (Calculated) |
| Magma: | Basalt-Andesite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Basalt | |||
| Andesite |
| Eruption Start Date: | 9000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Radiocarbon and stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 0.040 (Literature) | ||
| Bulk deposit volume (km3): | 0.100 (Literature) | ||
| Ignimbrite DRE Volume (km3): | 0.040 (Literature) | ||
| Ignimbrite Deposit Volume : | 0.100 (Literature) | ||
| Magnitude : | 4.000 (Literature) | ||
| Maximum VEI : | 4.000 (Literature) |
| Magma: | Andesite-Dacite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Andesite | |||
| Dacite |
| Eruption Start Date: | 13000 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) |
| Eruption Start Date: | 150000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 7.700 (Literature) | ||
| Bulk deposit volume (km3): | 18.500 (Calculated) | ||
| Ignimbrite DRE Volume (km3): | 7.400 (Literature) | ||
| Ignimbrite Deposit Volume : | 17.800 (Calculated) | ||
| Magnitude : | 6.300 (Calculated) | ||
| Maximum VEI : | 6.000 (Calculated) | ||
| Tephra fall DRE Volume (km3): | 0.400 (Literature) | ||
| Tephra fall Deposit Volume (km3): | 1.000 (Calculated) |
| Magma: | Dacite-Rhyolite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Rhyolite | |||
| Dacite |
| Eruption Start Date: | 170000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 56.800 (Literature) | ||
| Bulk deposit volume (km3): | 136.300 (Calculated) | ||
| Ignimbrite DRE Volume (km3): | 56.300 (Literature) | ||
| Ignimbrite Deposit Volume : | 135.100 (Calculated) | ||
| Magnitude : | 7.100 (Calculated) | ||
| Maximum VEI : | 7.000 (Calculated) | ||
| Tephra fall DRE Volume (km3): | 0.500 (Literature) | ||
| Tephra fall Deposit Volume (km3): | 1.200 (Calculated) |
| Magma: | Dacite-Rhyolite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Rhyolite | |||
| Dacite |
| Eruption Start Date: | 500000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 570000 BP | Date Error: | 40000 | |
| Eruption End Date: | Dating Technique: | Not Available | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 43.000 (Calculated) | ||
| Bulk deposit volume (km3): | 100.000 (Literature) | ||
| Ignimbrite DRE Volume (km3): | 43.480 (Calculated) | ||
| Ignimbrite Deposit Volume : | 100.000 (Literature) | ||
| Magnitude : | 7.000 (Calculated) | ||
| Maximum VEI : | 7.000 (Literature) |
| Magma: | Dacite-Rhyolite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Rhyolite | |||
| (Minor/less than 10%) Dacite |
| Eruption Start Date: | 600000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 650000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 750000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.600 (Literature) | ||
| Maximum VEI : | 5.000 (Literature) |
| Eruption Start Date: | 800000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.800 (Literature) | ||
| Maximum VEI : | 5.000 (Literature) |
| Eruption Start Date: | 900000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 950000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1050000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1100000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | 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) |
| Eruption Start Date: | 1150000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1200000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1250000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1300000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1350000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |
| Eruption Start Date: | 1400000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 0.400 (Assumed) | ||
| Bulk deposit volume (km3): | >= 1.000 (Assumed) | ||
| Magnitude : | 5.000 (Literature) | ||
| Maximum VEI : | ? 5.000 (Literature) |