Get our newsletter!
Check out the volcano tours offered by Volcano-Adventures!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
29 May - 3 Jun: Aegean's Hidden Gem: Isle of Milos - Milos Island (Greece)
3-18 Jun: From Krakatau to Bali - Java (Indonesia)
4-11 Jun: Nyiragongo Lava Lake & Mountain Gorillas - DR Congo + Rwanda
10-18 Jun: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
16 Jun: Etna Trekking Tour - Etna volcano
17 Jun: Etna Trekking Tour - Etna volcano
8-23 Jul: From Krakatau to Bali - Java (Indonesia)
10-14 Jul: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
10-24 Jul: Volcanoes in the South Sea - Vanuatu (South Sea)
14-23 Jul: The Volcanoes of Ambrym - the Grand Traverse - Vanuatu (South Sea)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News

no news in this list.

 

Ukinrek Maars volcano

Maars 91 m / 299 ft
United States, Alaska Peninsula, 57.83°N / -156.51°W
Current status: dormant (1 out of 5)
Ukinrek Maars volcano books
Typical eruption style: unspecified
Ukinrek Maars volcano eruptions: 1977 
TimeMag. / DepthDistanceLocation
Tue, 23 May
Tue, 23 May 10:34 UTCM 2.2 / 132.7 km2 km- 103km SSE of King Salmon, Alaska
Thu, 18 May
Thu, 18 May 23:10 UTCM 2.1 / 4.9 km29 km- 116km W of Larsen Bay, Alaska
Sat, 29 Apr
Sat, 29 Apr 15:39 UTCM 2.0 / 86.7 km17 km- 122km S of King Salmon, Alaska
Sat, 29 Apr 00:45 UTCM 2.223 km- 72km S of King Salmon, Alaska
Mon, 17 Apr
Mon, 17 Apr 21:09 UTCM 1.1 / 11.7 km30 km- 94km SSE of King Salmon, Alaska
View all recent quakes

Background:

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


Latest satellite images

 

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.