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Experts Detect Tremor at Mount St. Helens 2 hours, 9 minutes ago U.S. National - AP By DAVID AMMONS, Associated Press Writer MOUNT ST. HELENS NATIONAL MONUMENT, Wash. - Scientists detected a volcanic tremor at Mount St. Helens early Sunday, just hours after officials raised the volcano's alert level, cleared hundreds of visitors from the area and warned a major eruption was imminent. AP Photo Reuters Slideshow: Mount St. Helens Erupts Sunday's tremor lasted about 25 minutes and was milder than the 50-minute tremor that followed a steam release Saturday, said Jeff Wynn, chief scientist for volcano hazards at the...

Two Volcanoes Could Erupt In Washington State, seismologists are on alert this morning as earthquakes rock Mount Saint Helens. Plus the rumbling of the world's largest volcano, Mauna Loa in Hawaii shows no signs of stopping. The last time Mount Saint Helens erupted was in May of 1980. During the eruption, a portion of the mountain was blown to pieces, 57 people were killed and as many as 700 earthquakes were recorded in one day. In Hawaii, Mauna Loa hasn't erupted in 20 years. Now, there have been dozens of earthquakes felt and measured at Manau Loa. Now scientists say...

Small earthquakes rattled Mount St. Helens at the rate of one or two a minute Monday, and seismologists were working to determine the significance of some of the most intense seismic activity in nearly 20 years. Carbon dioxide and sulfur gas samples collected above the volcano - which erupted to devastating effect in 1980 - will help scientists figure out what is going on beneath the 925-foot-high dome of hardened lava within the mountain's gaping crater. They want to know whether the quakes are the result of water seeping into the mountain or magma moving under its crater. In either...

I was just reading another thread on this subject, when I came to the line stating that the quake intensity and frequency had diminished on Monday. That it complete eyewash - for whom I don't know. Evidently they don't want to scare the masses - just in case. The thread I'm referring to is located here.Below I'm posting the last three seismographs for you to see that this claim is bogus indeed. This swarm is appearing to grow, with over 1,000 earthquakes so far since Thursday. The depth of the quakes is still near the surface, and they are saying...

Submitted at 6:00 pm PDT, September 23, 2004-- Volcanoes in the Cascade Range are all at normal levels of background seismicity. Other volcanoes include,Mount Baker, Glacier Peak, Mount Rainier, Mount Adams, and Mount St. Helens in Washington State; Mount Hood, Mount Jefferson, Three Sisters, Newberry, and Crater Lake, in Oregon; and Medicine Lake, Mount Shasta, and Lassen Peak in northern California. USGS Cascades Volcano Observatory, the Pacific Northwest Seismograph Network at the University of Washington, and the USGS Northern California Seismic Network and Volcano Hazards Team in Menlo Park, California, monitor the major volcanoes in the Cascade Range of northern...

Picture of the Week: Go to this page to read about it and click for a bigger version: Mt. St. Helens and Spirit Lake Now, since last week's Where Is It? image was somewhat fun, here's another one. Where Is It? See the Comment for a clue as to where I found this image.