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Toba, Sumatra, Indonesia
Comparison of volumes produced by some of the greatest volcanic eruptions. The Young Toba Tuff has an estimated volume of 2,800 cubic kilometers (km) and was erupted about 74,000 years ago. The Huckleberry Ridge Tuff, erupted at Yellowstone 2.2 million years ago, has a volume of 2,500 cubic km. The Lava Creek Tuff, erupted at Yellowstone 600,000 years ago, has a volume of 1,000 cubic km. The May 1980 eruption of Mount St. Helens produced 1 cubic km of ash. Not shown is the Fish Canyon Tuff of the San Juan Mountains of Colorado. The Fish Canyon Tuff was erupted 27.8 million years ago and has an estimated volume of 3,000 cubic km.
Authorities are keeping a close watch on Indonesia's fiery volcanoes as aftershocks continue to rattle the nation following Wednesday's powerful earthquake.
Buildings collapsed and dozens of homes were flattened after the 8.4 magnitude tremor and a string of strong aftershocks struck in the ocean off Sumatra island, sparking widespread panic and triggering tsunami warnings, all the way from north Australia to Mozambique.
Originally posted by OzWeatherman
We deal with volcanic ash in the indonesia area as we forecast for pilots. Toba has no warnings on it yet but there are a few that have visble plumes. I would be watching Semeru and Krakatau. Krakatau actually has had seismic activity lately. We are monitoring it so will continue letting everyone know if there is any more tsunami warnings as soon as we send one out