Wide Bay volcan
Mise à jour: 21 mars. 2023 04:56 GMT -
Pyroclastic cone 640 m / 2100 ft
Aleutian Islands, United States, 53.96°N / -166.62°W
Condition actuelle: normal / en sommeil (1 sur 5)
Aleutian Islands, United States, 53.96°N / -166.62°W
Condition actuelle: normal / en sommeil (1 sur 5)
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Eruptions du volcan Wide Bay: None during the past 10,000 years
Less than few million years ago (Pleistocene)
Derniers séismes proches
| Heure | Mag. / Profondeur | Distance/Lieu | ||
| lundi, 20 mars 2023 GMT (1 séisme) | ||||
| 19 mars 2023 22:45 (GMT -8) (20 mars. 2023 06:45 GMT) | 0.3 8.8 km | 17 km (10.6 mi) 13 Km WSW of Unalaska, Alaska | ||
| dimanche, 19 mars 2023 GMT (1 séisme) | ||||
| 19 mars 2023 14:23 (GMT -8) (19 mars. 2023 22:23 GMT) | 1.2 8.5 km | 18 km (11 mi) 13 Km WSW of Unalaska, Alaska | ||
| jeudi, 16 mars 2023 GMT (1 séisme) | ||||
| 16 mars 2023 15:44 (GMT -8) (16 mars. 2023 23:44 GMT) | 0.3 4.6 km | 9.5 km (5.9 mi) 2 Km WSW of Dutch Harbor, Alaska | ||
Introduction
Wide Bay and Table Top cinder cones, at the NE tip of the triangular NW extension of Unalaska Island across the bay from the town of Dutch Harbor, blanket or fill late-Pleistocene topography. Both 792-m-high Table Top and the 640-m-high Wide Bay cones were considered to be Holocene in age, with the Wide Bay cone being among the youngest in a SW-NE-trending volcanic belt that passes through Makushin volcano (Miller et al., 1998), however, a later 40Ar/39Ar age of 19+/-15 ka was obtained from Table Top (Nye, 2008 pers. comm.). Lowermost flows at the base of the cone are glacially striated although the cone remains well shaped with the summit vent depression preserved. Wide Bay was considered to represent a magmatic system separate from that of Makushin volcano and Table Top cone (Nye, pers. comm. 2008).---
Source: Smithsonian / GVP volcano information
Wide Bay Photos
Lake Assale - a large expanse of salt which has been deposited by countless invasions from sea water. In places, the salt is 5 kilometers thick. The Afar have been extrac...
Volcano watchers on the rim of Yasur, above the active craters at night. (Photo: Tom Pfeiffer)
Wider angle of Chikurachiki near the Shelihov Bay. (Photo: Tom Pfeiffer)
Notre groupe au bord du cratère du Yasur la nuit. (Photo: Tom Pfeiffer)
See also: Sentinel hub | Landsat 8 | NASA FIRMS
