Chiginagak vulcano
Aggiornato: 2 feb. 2023 12:01 GMT -
Stratovolcano 2221 m / 7,287 ft
United States, Alaska Peninsula, 57.14°N / -156.99°W
Stato attuale: normal or dormant (1 di 5)
United States, Alaska Peninsula, 57.14°N / -156.99°W
Stato attuale: normal or dormant (1 di 5)
Last update: 13 dic 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)
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Eruzioni del vulcano Chiginagak: 1998
Latest nearby earthquakes
Data / ora | Mag. / Prof. | Distanza/Ubicazione | ||
sabato, 28 gennaio 2023 GMT (2 sismi) | ||||
28 gen 2023 12:02 (GMT -9) (28 gen 2023 21:02 GMT) | 2.1 3.6 km | 25 km (16 mi) 46 km a sud da Ugashik, Borough di Lake and Peninsula, Alaska, Stati Uniti | ||
28 gen 2023 00:39 (GMT -9) (28 gen 2023 09:39 GMT) | 2.6 4.4 km | 25 km (16 mi) 78 km a est da Port Heiden, Borough di Lake and Peninsula, Alaska, Stati Uniti |
Sfondo
The symmetrical, calc-alkaline Chiginagak stratovolcano located about 15 km NW of Chiginagak Bay contains a small summit crater, which is breached to the south, and one or more summit lava domes. Satellitic lava domes occur high on the NW and SE flanks of the glacier-mantled volcano. An unglaciated lava flow and an overlying pyroclastic-flow deposit extending east from the summit are the most recent products of Chiginagak. They most likely originated from a lava dome at 1687 m on the SE flank, 1 km from the summit of the volcano, which has variably been estimated to be from 2075 to 2221 m high. Brief ash eruptions were reported in July 1971 and August 1998. Fumarolic activity occurs at 1600 m elevation on the NE flank of the volcano, and two areas of hot-spring travertine deposition are located at the NW base of the volcano near Volcano Creek.---
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS