Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
27 Dec 18 - 2 Jan 2019: Kilauea Volcano Special - Big Island, Hawaiʻi
9-22 Feb 2019: Desert, salt and volcanoes - Danakil desert (Ethiopia)
2-17 May 2019: From Krakatau to Bali - Java (Indonesia)
4-11(12) May 2019: Fascination Volcano - Santorini Island (Greece)
4-12 May 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
11-19 May 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
7-12 Jun 2019: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
8-16 Jun 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
14-30 Jun 2019: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
8-23 Jul 2019: From Krakatau to Bali - Java (Indonesia)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures
News

no news in this list.

 

Ofu-Olosega volcano

Shield volcanoes 639 m / 2,096 ft
United States, Samoan Islands, -14.18°S / -169.62°W
Current status: normal or dormant (1 out of 5) | Reports
Ofu-Olosega volcano books
Typical eruption style: unspecified
Ofu-Olosega volcano eruptions: 1866  No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

The two triangle-shaped islands of Ofu and Olosega in eastern Samoa, with a combined length of 6 km, are separated by a narrow strait. The islands are formed by two eroded, coalescing basaltic shield volcanoes whose slopes dip to the east and west. Steep cliffs up to 600-m high truncate the northern and southern sides of the islands. The narrow, steep-sided ridge forming the eastern tip of Ofu Island consists of a dike complex. The shield volcano on Ofu is cut on the north by the A'ofa caldera; bathymetry suggests that a caldera may also exist on the Sili shield volcano of Olosega. The Nu'utele tuff cone, forming a small crescent-shaped island immediately off the west end of Ofu Island, is Holocene in age. A submarine eruption took place in 1866 at the opposite end of the two islands, 3 km SE of Olosega, along the ridge connecting Olosega with Ta'u Island.
---
Smithsonian / GVP volcano information

Ofu-Olosega Photos:




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.