COUNTRIES | Geographic.org | GEOLOGY | USA STATISTICS | CHINA STATS | COUNTRY CODES | AIRPORTS | RELIGION | JOBS

Volcano Photos

Toba Volcano, Indonesia

Toba Volcano, Indonesia, Volcano photo


Toba Volcano, Indonesia

The 35 x 100 km wide Toba caldera, partially filled by waters of Sumatra's Lake Toba, is Earth's largest Quaternary caldera.

This view looks west toward the northern end of Samosir Island, which is part of a massive inclined block uplifted after eruption of the Young Toba Tuff (YTT) about 74,000 years ago.

The island, once entirely covered by Lake Toba, is formed of caldera-fill deposits of YTT capped by lake sediments.

PHOTO SOURCE: Tom Casadevall 1987, US Geological Survey, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.


NOTE: The information regarding Volcano on this page is re-published from other sources. No claims are made regarding the accuracy of Volcano information contained here. All suggestions for corrections of any errors about Volcano photos should be addressed to the copyright owner noted below the photo.





Please bookmark this page (add it to your favorites).

This page was last modified 16-Jul-2015, Copyright © 1995-2015 ITA all rights reserved.