Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 2 · column 3 of 9 · from the scan, no model involved
Mount St. Helens may not be the only one to blow its stack.
“All of the Cascade volcanoes will erupt again,” says Dr. Richard Fiske, a volcanologist and director of the Smithsonian Institution’s National Museum of Natural History. "But when they will erupt is the question. They’re all considered active.”
Sometimes people mistakenly refer to a volcano as extinct when it’s merely dormant. Fiske explained. "It’s always difficult to know whether a volcano is dead,” he said. “Generally, if we look at it and it hasn't erupted for hundreds of thousands of years or millions of years, somebody might pronounce it dead.
“But many allegedly dead volcanoes have come back to life.” Lots of Volcanoes
The Cascade Mountain Range of the western United States is peppered with volcanoes. Washington state’s Mount St. Helens and California’s Lassen Peak, which erupted from 1914-21, are the only two that have exploded this century in the 48 contiguous states. But Mounts Baker, Rainier, Hood and Shasta also have erupted in the last few hundred years. That’s a long time by human standards but not so long in the life of a volcano.
There is evidence of heat inside all six of the volcanoes, as well as others in the Cascades, according to Fiske.
The hot sulphur spring at Mount Shasta, the steam vents at many volcanoes, and the hydrogen sulphide :missions at Mount Hood ind Mount Adams are all examples of this thermal ictivity.
92.6%