Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Départs garantis:
10-18 oct. 2020: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
7-16 déc. 2020: Magic Minutes: Chile Solar Eclipse 2020 - Chile
: Places libres / : Départ garanti / : Quelques places disponibles / : Groupe fermé
Actualités

Pas d'article dans la liste.

 

Ukinrek Maars volcan

Maars 91 m / 299 ft
United States, Alaska Peninsula, 57.83°N / -156.51°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Ukinrek Maars livres
Style éruptif tipique: unspecified
Eruptions du volcan Ukinrek Maars: 1977 
HeureMag. / DepthDistanceLocation
Thu, 13 Aug 2020
Thu, 13 Aug 04:16 UTCM 1.1 / 120.5 km16 km75 km ESE of Egegik, Alaska (USA)
Sat, 8 Aug 2020
Sat, 8 Aug 05:35 UTCM 2.3 / 154.5 km25 km43 km SE of Egegik, Alaska (USA)
Thu, 23 Jul 2020
Thu, 23 Jul 16:23 UTCM 1.7 / 134 km24 km74 km ESE of Egegik, Alaska (USA)
Sun, 21 Jun 2020
Sun, 21 Jun 01:10 UTCM 2.0 / 131.8 km7 km67 km SE of Egegik, Alaska (USA)
Fri, 19 Jun 2020
Fri, 19 Jun 23:45 UTCM 1.5 / 96.3 km22 km74 km ESE of Egegik, Alaska (USA)
Voir tous

Introduction:

Ukinrek Maars are two explosion craters that were created in an area without previous volcanic activity during a 10-day-long phreatomagmatic eruption March-April 1977. The basaltic maars were erupted through glacial deposits in the Bering Sea lowlands 1.5 km south of Becharof Lake and 12 km west of Peulik volcano; their location is related to the regional Bruin Bay fault. The elliptical West Maar, which was the first to form, is 105 x 170 m wide and 35 m deep. The other maar, 600 m to the east, is 300 m wide and 70 m deep. Both maars are now filled by crater lakes; the eastern lake encircles a 49-m-high lava dome that was emplaced at the end of the eruption. Base surges were directed primarily to the NW. Juvenile material from the Ukinrek eruptions was of mantle-derived olivine basaltic composition. The dacitic Gas Rocks lava domes, of Quaternary age, are located on the shores of Becharof Lake, 3 km north of Ukinrek maars and were the site of a phreatic eruption about 2300 years ago.
---
Smithsonian / GVP volcano information


Derniers images satellite


See also: Sentinel hub | Landsat 8
 

Plus sur VolcanoDiscovery:

 
Why is there advertising on this site?
Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.