Volcanoes of Samoa – Part 1 of 2

Google Maps screen capture of the Samoan Islands. The two main islands of the nation of Samoa are clearly visible left of center, Savai’i and Upolu. The main islands of American Samoa also visible, the American Samoa label is hiding Tuluila. To its east are Ofu – Olosega, Ta’u and the Vailulu’u seamount. Sea floors are up to 5,000 under the island chain. Multiple seamounts, some related, some not, are visible. The curved structure in the lower right is the transition of the Kermadec – Tonga Trench into the Vitaz Trench, a source of significant tectonic stress in the region.

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The Double Caldera of Mount Suswa, Kenya

Mount Suswa from the rim of the oldest caldera. Image courtesy African Spice Safaris

Hokkaido 3 – The Kutcharo Caldera, Hokkaido, Japan

Lake Kussharo in winter. Note that the lake is not frozen. Image courtesy Ten via YouTube.

 

This is the second of three posts on the East Hokkaido Caldera Field.  This post is centered on the Kutcharo (Kussaro or Kuttyaro) volcanic complex.