| Volcano Name: | Okiura | Smithsonian Inst ID (SI_VNUM): | 283891 |
| Alternate Name: |
Kenashi-yama |
Volcano Type: | Caldera(s) |
| Latitude: | 40.5666666700 | ||
| Longitude: | 140.7333333000 | ||
| Region: | Japan, Taiwan, Marianas | Sub Region: | Honshu |
| Date Entered: | 02/05/2012 |
| Eruption Start Date: | 450000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | Stratigraphy | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 4.000 (Assumed) | ||
| Bulk deposit volume (km3): | >= 10.000 (Assumed) | ||
| Magnitude : | 6.200 (Literature) | ||
| Maximum VEI : | ? 6.000 (Literature) |
| Eruption Start Date: | 1500000 BP | Date Error: | ||
| Eruption End Date: | Dating Technique: | K Ar | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 125.000 (Calculated) | ||
| Bulk deposit volume (km3): | < 300.000 (Literature) | ||
| Ignimbrite DRE Volume (km3): | 25.830 (Calculated) | ||
| Ignimbrite Deposit Volume : | 62.000 (Literature) | ||
| Magnitude : | 7.500 (Calculated) | ||
| Maximum VEI : | 7.000 (Calculated) | ||
| Primary Intracaldera Material DRE Volume (km3): | 83.330 (Calculated) | ||
| Primary Intracaldera Material Deposit Volume (km3): | ? 200.000 (Literature) |
| Magma: | Andesite-Rhyolite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Rhyolite | |||
| Dacite | |||
| Andesite | |||
| (Minor/less than 10%) Basalt |