Snowy Mountain vulcano
Aggiornato: 2 feb. 2023 11:40 GMT -
Stratovolcanoes 2162 m / 7,093 ft
United States, Alaska Peninsula, 58.34°N / -154.68°W
Stato attuale: normal or dormant (1 di 5)
United States, Alaska Peninsula, 58.34°N / -154.68°W
Stato attuale: normal or dormant (1 di 5)
Mostra la mappa interattiva
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Eruzioni del vulcano Snowy Mountain: 1710 ± 200 years
Latest nearby earthquakes
| Data / ora | Mag. / Prof. | Distanza/Ubicazione | ||
| sabato, 28 gennaio 2023 GMT (1 sismo) | ||||
| 28 gen 2023 01:29 (GMT -9) (28 gen 2023 10:29 GMT) | 1.4 42 km | 28 km (17 mi) 60 Km NNW of Karluk, Alaska | ||
| 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 | 32 km (20 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 | 31 km (19 mi) 100 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
| sabato, 21 gennaio 2023 GMT (1 sismo) | ||||
| 21 gen 2023 05:40 (GMT -9) (21 gen 2023 14:40 GMT) | 2.5 | 30 km (19 mi) 99 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
Sfondo
Glacier-covered, 2161-m-high Snowy Mountain, located 15 km NE of Mount Katmai, is the SW-most of a chain of closely spaced volcanoes extending NE along the crest of the Alaska Range. More than 90% of the compound Snowy volcano is mantled by glacial ice, which prompted the naming of the volcano by members of the 1917 Katmai expedition. Two small andesitic-dacitic stratovolcanoes, SW Snowy and NE Snowy, originated about 200,000 years ago. Only NE Snowy has been active during the Holocene. Late-Holocene collapse of this volcano produced a large debris avalanche that traveled to the north and left a large breached crater inside which a blocky lava dome was constructed. Peat beneath an ash layer thought to be associated with the the lava dome was radiocarbon dated at about 250 +/- 70 years ago. No historical eruptive activity has been documented, but fumarolic activity has been observed at NE Snowy. A zone of persistent diffuse shallow seismicity is located on and NW of the volcano.---
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS
