Novarupta vulcano
Aggiornato: 2 feb. 2023 11:54 GMT -
Caldera 841 m / 2,759 ft
United States, Alaska Peninsula, 58.27°N / -155.16°W
Stato attuale: normal or dormant (1 di 5)
United States, Alaska Peninsula, 58.27°N / -155.16°W
Stato attuale: normal or dormant (1 di 5)
Last update: 6 gen 2022 (Volcanic Ash Advisory)
Mostra la mappa interattiva
[nascondere la mappa] [enlarge]
Eruzioni del vulcano Novarupta: 1912
Latest nearby earthquakes
| Data / ora | Mag. / Prof. | Distanza/Ubicazione | ||
| venerdì, 27 gennaio 2023 GMT (1 sismo) | ||||
| 26 gen 2023 20:26 (GMT -9) (27 gen 2023 05:26 GMT) | 2.3 3.1 km | 4.6 km (2.9 mi) 99 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
| giovedì, 26 gennaio 2023 GMT (1 sismo) | ||||
| 26 gen 2023 09:53 (GMT -9) (26 gen 2023 18:53 GMT) | 2.7 37 km | 3 km (1.9 mi) 100 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
| lunedì, 23 gennaio 2023 GMT (1 sismo) | ||||
| 23 gen 2023 10:12 (GMT -9) (23 gen 2023 19:12 GMT) | 1.8 | 17 km (10.6 mi) 93 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
| domenica, 22 gennaio 2023 GMT (1 sismo) | ||||
| 21 gen 2023 22:13 (GMT -9) (22 gen 2023 07:13 GMT) | 1.5 0.6 km | 16 km (9.9 mi) 87 Km NW of Karluk, Alaska | ||
| sabato, 21 gennaio 2023 GMT (1 sismo) | ||||
| 21 gen 2023 05:40 (GMT -9) (21 gen 2023 14:40 GMT) | 2.5 | 1.6 km (1 mi) 99 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
Sfondo
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
See also: Sentinel hub | Landsat 8 | NASA FIRMS
