Novarupta Volcano
Updated: 14. Mai 2024 15:01 GMT -
Caldera 841 m / 2,759 ft
United States, Alaska Peninsula, 58.27°N / -155.16°W
Aktueller Status: normal / ruhend (1 von 5)
United States, Alaska Peninsula, 58.27°N / -155.16°W
Aktueller Status: normal / ruhend (1 von 5)
Last update: 6 Jan 2022 (Volcanic Ash Advisory)
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Ausbrüche des Novarupta: 1912
Letzte Erdbeben in der Nähe
| Uhrzeit | Mag. / Tiefe | Entfernung / Ort | |||
| 11. Mai. 11:05 (Anchorage) | 1.0 4 km |  87 km NW of Karluk, Alaska | Info | ||
| Donnerstag, 9. Mai 2024 GMT (1 Beben) | |||||
| 9. Mai. 05:43 (Anchorage) | 1.6 0 km | 17 km südwestlich | 89 km NW of Karluk, Alaska | Info | |
| Dienstag, 7. Mai 2024 GMT (1 Beben) | |||||
| 7. Mai. 03:36 (Anchorage) | 1.8 100 km | 21 km östlich | 83 km NNW of Karluk, Alaska | Info | |
| Samstag, 4. Mai 2024 GMT (1 Beben) | |||||
| 3. Mai. 19:07 (Anchorage) | 2.4 0 km | 15 km südwestlich | 90 km NW of Karluk, Alaska | Info | |
| Donnerstag, 2. Mai 2024 GMT (2 Beben) | |||||
| 2. Mai. 13:23 (Anchorage) | 1.1 0 km | 17 km südwestlich | 87 km NW of Karluk, Alaska | Info | |
| 2. Mai. 03:37 (Anchorage) | 0.9 2.7 km | 86 km NW of Karluk, Alaska | Info | ||
Beschreibung
Novarupta, the least topographically prominent volcano in the Katmai area, was formed during a major eruption in 1912. This eruption was the world's largest during the 20th century and produced a voluminous rhyolitic airfall tephra and the renowned Valley of Ten Thousand Smokes (VTTS) ash flow. At the end of the eruption a small, 65-m-high, 400-m-wide lava dome grew to an elevation of 841 m within the source vent of the VTTS ashflow, a 2-km-wide area of subsidence NW of Trident volcano. The NE side of the Falling Mountain lava dome of the Trident volcanic cluster, as well as Broken Mountain and Baked Mountain, was removed by collapse of the Novarupta depression, which is marked by radial and scalloped arcuate fractures. Much larger collapse took place at Katmai volcano, 10 km to the east, where a 3 x 4 km wide caldera formed in response to magma reservoir drainage toward Novarupta.---
Smithsonian / GVP volcano information
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