Latest Volcanic activity of Mount St. Helens Stories

2008-01-17 14:20:00

Until earlier this week, the most recent significant tremor at Mount St. Helens was in October of 2004. On Sunday January 13th, when geologist and private pilot John S. Pallister was flying over the volcano in southwestern Washington he was surprised to spot some steam rising from a fracture in Mount St. Helens' crater. This not only caught Pallister's attention, enough to take some pictures; it also gained the attention of scientists who now think something is moving inside the volcano....

2007-03-26 21:10:14

VANCOUVER, Wash. -- Mount St. Helens may be following the example of Kilauea in Hawaii with magma being replaced from a reservoir beneath the volcano as fast as it emerges as lava at the surface, scientists say. While the two volcanoes are different in many respects, St. Helens appears to have become an "open system" as its domebuilding eruption that began in the fall of 2004 continues at a pace that has been unchanged for the past year, said Daniel Dzurisin, a geologist at the U.S....

2006-05-30 14:10:25

VANCOUVER, Wash. (AP) - Mount St. Helens shot a steam and ash plume at least 16,000 feet into the air Monday after a large rockfall from the lava dome in the volcano's crater, scientists said. Pilots reported the plume rose between 16,000 and 20,000 feet in the air, scientists at the Cascades Volcano Observatory said. The rockfall coincided with a magnitude 3.1 earthquake shortly after 9 a.m. Monday at the mountain, scientists said. Such events are expected during growth of the lava dome,...

2006-05-12 19:30:54

SEATTLE -- The sheer rock fin emerging in Mount St. Helens' crater lost about a third of its northern face recently, but because lava keeps pushing to the surface, the height remained the same Thursday - around 330 feet. A burst of seismic activity at the mountain Sunday night likely corresponded to the collapse. "Certainly a big piece fell off - something like 65,000 cubic yards," said geologist Dan Dzurisin at the Cascades Volcano Observatory in Vancouver, Wash., about 50 miles from the...

2005-12-31 10:10:00

SEATTLE -- Roughly every three seconds, the equivalent of a large dump truck load of lava - 10 cubic yards - oozes into the crater of Mount St. Helens, and with the molten rock comes a steady drumfire of small earthquakes. The unremitting pace, going on for 15 months now, is uncommon, said U.S. Geological Survey geologist Dave Sherrod. Experts say it is unclear what the activity signifies or how much longer it will continue. "One view of this eruption is that we're at the end of the...

2005-11-22 19:58:52

SEATTLE (Reuters) - A rock fall at Mount Saint Helens caused a large gray cloud of dust to appear above the volcano on Tuesday, but there was no sign of increased seismic activity. Seismic levels at Mount Saint Helens, which came back to life last year by emitting steam and ash, are "amazingly regular," said Seth Moran, a seismologist at the U.S. Geological Survey. Mount St. Helens erupted in 1980 and killed 57 people and was mostly dormant until September 2004, when new magma...

2005-09-12 11:34:23

In September 9 story headlined "Scientists find growing land bulge in Oregon," please read in first paragraph, "A large, slow-growing volcanic bulge in Western Oregon," instead of "A large, slow-growing volcanic bulge in Eastern Oregon." A corrected story follows: By Teresa Carson PORTLAND, Oregon (Reuters) - A large, slow-growing volcanic bulge in Western Oregon is attracting the attention of seismologists who say that the rising ground could be the beginnings of a volcano or...

2005-09-09 18:00:00

By Teresa Carson PORTLAND, Oregon (Reuters) - A large, slow-growing volcanic bulge in Eastern Oregon is attracting the attention of seismologists who say that the rising ground could be the beginnings of a volcano or simply magma shifting underground. Scientists said that the 100 square-mile (260 sq-km) bulge, first discovered by satellite, poses no immediate threat to nearby residents. "It is perfectly safe for anyone over there," said Michael Lisowski, geophysicist at the United States...

2005-05-08 17:25:09

MOUNT ST. HELENS NATIONAL MONUMENT, Wash. (AP) -- Johnston Ridge Observatory reopened to the public Friday, seven months after it was closed because of new activity at Mount St. Helens. From the observatory, visitors can look five miles into the crater of Mount St. Helens where a steaming lava dome has been growing since October. On Friday, however, clouds obscured the view. It may be a couple of days before the weather clears enough for visitors at the observatory to get a better view of...

2005-01-26 07:28:30

SEATTLE (AP) -- Growth of the new lava dome inside the crater of Mount St. Helens has gradually slowed since the mountain reawakened in October, scientists said Tuesday. Molten rock has been oozing out from the surface of the volcano's crater since the fall, building a new lava dome that now has a total volume of 44 million cubic yards. That is big enough to contain 134 buildings the size of the basketball arena where the Portland Trailblazers play. Scientists provided an update on Mount...

Word of the Day
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'