| Volcano Name: | Three Sisters | Smithsonian Inst ID (SI_VNUM): | 322070 |
| Alternate Name: |
Ahalapam Cinder Field Ahalapan Cinder Field Black Hump Collier Cone Condon Butte Four-in-One Cone Island Fissue Little Brother Matthieu Lakes Fissure Middle Sister Prouty Hill Sims Butte Step Sister Yapoah Crater |
Volcano Type: | Complex volcano(es) |
| Latitude: | 44.1666666667 | ||
| Longitude: | -121.7666666667 | ||
| Region: | Canada and Western USA | Sub Region: | USA (Oregon) |
| Date Entered: | 02/05/2012 |
| Eruption Start Date: | 2094 BP | Date Error: | 266 | |
| Eruption End Date: | Dating Technique: | Radiocarbon (corrected) | ||
| Eruption Date Quality: | Low quality | Preferred Date: | Y | |
| C14 Date: | 2150 | C14 Date Error: | ||
| Bulk DRE Volume (km3): | 0.040 (Calculated) | ||
| Bulk deposit volume (km3): | 0.100 (Literature) | ||
| Magnitude : | 4.000 (Calculated) | ||
| Maximum VEI : | 4.000 (Literature) |
| Magma: | Dacite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Dacite |
| Magma: | Rhyolite | ||
| Calculated Density: | |||
| Rock Classification: | |||
| Rhyolite |