Mageik vulcano
Aggiornato: 2 feb. 2023 20:10 GMT -
Stratovolcano 2165? m / 7,103 ft
United States, Alaska Peninsula, 58.2°N / -155.25°W
Stato attuale: normal or dormant (1 di 5)
United States, Alaska Peninsula, 58.2°N / -155.25°W
Stato attuale: normal or dormant (1 di 5)
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Eruzioni del vulcano Mageik: 500 BC ± 50 years
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 | 5.5 km (3.4 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 | 7.1 km (4.4 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 | 8.2 km (5.1 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 | 7.4 km (4.6 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 | 8.5 km (5.3 mi) 99 km a sud-est da King Salmon, Borough di Bristol Bay, Alaska, Stati Uniti | ||
Sfondo
Mount Mageik is a broad ice-capped stratovolcano at the head of the Valley of Ten Thousand Smokes across Katmai Pass from Trident volcano. Four small overlapping peaks form the broad summit, three of which lie along a NE-SW trend south of the northern peak. The central summit consists of a lava dome, while the east, SW, and north volcanoes are capped by fragmental cones with ice-filled craters. The three westernmost summits are glaciated and of primarily Pleistocene age, but the East Mageik summit cone was the source of at least six Holocene eruptive episodes and fed Holocene lava flows that descended toward Katmai Pass and blanket the NE-to-SE flanks of the volcano. A young, 300-m-wide explosion crater between the east and central summits that formed about 2400-2500 years ago contains a shallow, acidic lake and many superheated fumarole jets. Three Holocene debris avalanches from south-flank failures descended into the Martin Creek drainages, one perhaps reaching the coast. Reports of historical eruptions from Mageik were questioned by Miller et al. (1998) and Hildreth and Fierstein (2000).---
Smithsonian / GVP volcano information
See also: Sentinel hub | Landsat 8 | NASA FIRMS
