Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Guaranteed tours:
12-30 Aug 2019: Kamchatka - Land of Colors - Kamchatka (Russia)
13-29 Aug 2019: Volcanoes of Java - Java (Indonesia)
14-17 Aug 2019: Krakatau Volcano Special - Krakatau volcano (Indonesia)
1-19 Sep 2019: Kamchatka - Land of Colors - Kamchatka (Russia)
3-18 Sep 2019: From Krakatau to Bali - Java (Indonesia)
21-28 Sep 2019: Pearl of the Aegean - Santorini - Santorini Island (Greece)
12-20 Oct 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News

no news in this list.

 

Roundtop volcano

Stratovolcano 1871 m / 6,138 ft
United States, Aleutian Islands, 54.8°N / -163.59°W
Current status: normal or dormant (1 out of 5) | Reports
Roundtop volcano books
Typical eruption style: unspecified
Roundtop volcano eruptions: 7600 BC ± 500 years
TimeMag. / DepthDistanceLocation
Thu, 16 May 2019
Thu, 16 May 17:18 UTCM 0.6 / 2.6 km15 km20km SSW of False Pass, Alaska (USA)
Wed, 15 May 2019
Wed, 15 May 22:13 UTCM 1.8 / 4.9 km17 km22km SSW of False Pass, Alaska (USA)
Wed, 15 May 21:43 UTCM 1.2 / 3.2 km16 km23km SSW of False Pass, Alaska (USA)
Wed, 15 May 08:49 UTCM 0.9 / 13.1 km28 km25km SSE of False Pass, Alaska (USA)
View all recent quakes

Background:

The flat-topped, glacier-covered Roundtop volcano is the easternmost and lowest of an E-W-trending line of volcanoes on eastern Unimak Island. Roundtop lies 13 km SW of the village of False Pass. The snow and ice-covered edifice fills much of a 3-km-wide caldera that formed during the early Holocene. The caldera-forming eruption produced pyroclastic flows and a rhyolitic tephra layer that is widespread throughout the southwestern end of the Alaska Peninsula. A group of lava domes was constructed south of Roundtop volcano. No historical eruptions are known from the 1871-m-high stratovolcano. In the 1930s warm springs were found on its slopes.
---
Smithsonian / GVP volcano information

Roundtop Photos:




Latest satellite images

 

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.