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2005 April 12

News Report Update

  • Mount St. Helens' dome takes on jagged look 2005-Apr-12 00:00 from The Seattle Times

    MOUNT ST. HELENS — Surging seismic activity at Mount St. Helens has changed the whale-back shape of the volcano's emerging dome, leaving it more like the back of a stegosaurus — a dinosaur with bony plates of armor along its spine.

    The outer edge of the jagged, platelike protrusions matches the smooth old whale-back profile, so it appears the new look reflects a sinking away of some segments of the dome, said David Sherrod at the U.S. Geological Survey's (USGS) Cascades Volcano Observatory, 50 miles away in Vancouver, Wash.

    also in The Portland Oregonian 2005-Apr-11 18:27

Posted by Raoul Ortega on 2005 April 12 00:50 |