Activity Update: All volcanoes in the Cascade Range are at normal levels of background seismicity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; Mount Hood, Mount Jefferson, Three Sisters, Newberry Volcano, and Crater Lake, in Oregon; and Medicine Lake volcano, Mount Shasta, and Lassen Peak in northern California.
Mount St. Helens has been at Volcano Alert Level NORMAL (Aviation Color Code GREEN) since July 10, 2008.
Recent Observations: Activity at Cascades volcanoes remains at normal levels this week. A short-lived burst of micro earthquakes (M~0.5) occurred at Mount Rainier on November 29, located near Camp Muir. On December 1, two small earthquakes (largest M1.2) occurred at Mount Hood, located near the summit. On December 2, field crews visited Mount St. Helens to conduct routine equipment maintenance and to collect data on channel geometry along the North Fork Toutle River.
The Moon is Waning Gibbous (98% of Full)
Cascade Range Weekly Update issued Dec 4
All posts are those of the individual authors and the owner
of this site does not endorse them. Content should be considered opinion
and not fact until verified independently.
December 06, 2009 06:47PM |
Sorry, only registered users may post in this forum.
