| Volcano Name: | Aniakchak | Smithsonian Inst ID (SI_VNUM): | 312090 |
| Alternate Name: |
Blocky Cone Bolshoi Dome Half Cone New Cone Pumice Dome Vent Mountain Vulcan Dome West Dome |
Volcano Type: | Caldera(s) |
| Latitude: | 56.8833333300 | ||
| Longitude: | -158.1666667000 | ||
| Region: | Alaska | Sub Region: | Alaska Peninsula |
| Date Entered: | 02/05/2012 |
| Eruption Start Date: | 1 /5 /1931 | Date Error: | ||
| Eruption End Date: | Dating Technique: | Historical records | ||
| Eruption Date Quality: | High quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 0.160 (Calculated) | ||
| Bulk deposit volume (km3): | 0.400 (Literature) | ||
| Magnitude : | 4.600 (Calculated) | ||
| Maximum VEI : | 4.000 (Literature) | ||
| Minimum Column Height (km): | 6.000 (Literature) | ||
| Minimum Intensity : | 8.540 (Column Height) |
| Magma: | Andesite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Andesite |
| Eruption Start Date: | 1531 | Date Error: | 89 | |
| Eruption End Date: | Dating Technique: | Radiocarbon (corrected) | ||
| Eruption Date Quality: | Medium quality | Preferred Date: | Y | |
| C14 Date: | 390 | C14 Date Error: | 50 | |
| Bulk DRE Volume (km3): | 0.150 (Literature) | ||
| Bulk deposit volume (km3): | 0.875 (Literature) | ||
| Magnitude : | 4.900 (Calculated) | ||
| Maximum Column Height (km): | 26.000 (Literature) | ||
| Maximum Intensity : | 10.850 (Column Height) | ||
| Maximum VEI : | + 4.000 (Literature) | ||
| Minimum Column Height (km): | 12.000 (Literature) | ||
| Minimum Intensity : | 9.690 (Column Height) |
| Magma: | Andesite-Dacite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Andesite | |||
| Dacite |
| Eruption Start Date: | 3491 BP | Date Error: | 95 | |
| Eruption End Date: | Dating Technique: | Radiocarbon (corrected) | ||
| Eruption Date Quality: | Medium quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | >= 27.000 (Literature) | ||
| Bulk deposit volume (km3): | > 50.000 (Literature) | ||
| Ignimbrite DRE Volume (km3): | >= 27.000 (Literature) | ||
| Magnitude : | 6.800 (Calculated) | ||
| Maximum VEI : | ? 6.000 (Literature) | ||
| Minimum Column Height (km): | 20.000 (Literature) | ||
| Minimum Intensity : | 10.540 (Column Height) |
| Magma: | Andesite-Dacite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Dacite | |||
| Andesite |
| Eruption Start Date: | -6300 | Date Error: | 1250 | |
| Eruption End Date: | Dating Technique: | Tephrochronology | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| Bulk DRE Volume (km3): | 12.000 (Calculated) | ||
| Bulk deposit volume (km3): | 30.000 (Literature) | ||
| Magnitude : | 6.500 (Calculated) | ||
| Maximum VEI : | 6.000 (Literature) |
| Magma: | Andesite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Andesite |