Quake Activity Rises at Mount St. Helens
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Earthquake activity has increased at Mount St. Helens, but scientists said Saturday there was no reason to raise the volcano's alert level.
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VANCOUVER, Wash.  - Scientists tracking earthquake  activity at Mount St. Helens raised their warning level on  Saturday to a Level 3-Volcano Alert, and officials prepared to  evacuate a visitor center about five miles from the volcano's  crater.
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Small earthquakes were detected at Mount St. Helens on Saturday, a warning sign that pressure was building up again in the volcano after it spewed steam and ash on Friday, scientists said.
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A three-point-one magnitude earthquake shook the crater at Mount Saint Helens Saturday morning. That is the mountain&#39;s biggest earthquake since the new lava dome began growing in mid-October, according to the US- Geological Survey.
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JOHNSTON RIDGE OBSERVATORY -- Scientists issued a volcano alert Saturday after seismic activity indicated magma movement beneath Mount St.
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Scientists say the earthquake activity is not significant enough to bump the alert level up at the Washington State volcano. Seismologists are recording quakes of up to 2.4 magnitude on the Richter scale.
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Mount St. Helens let off more steam this morning, the latest indication that a larger eruption may be in the works. The southwest Washington mountain
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September 29, 2004 - Scientists in Washington state say Mount St. Helens may be getting ready to erupt again. Small earthquakes are being detected beneath the volcano&#39;s lava dome at the rate of 4 per minute.
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VANCOUVER, Wash.  - Scientists tracking renewed  earthquake activity at Mount St. Helens raised their warning  level on Saturday to a Level 3-Volcano Alert, signaling a  second eruption may be brewing.
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SEATTLE - Government scientists raised the alert level Saturday for Mount St. Helens after its second steam eruption in two days was followed by a powerful tremor...
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The magnitude and frequency of earthquakes at Mount St. Helens increased gradually on Friday, reaching levels &quot;equal to or higher than&quot; during the steam and ash eruption
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VANCOUVER -- Concerns that the dome within Mount St. Helens&#39;s crater could release a rock-flinging, ash-filled explosion grew Wednesday after earthquake activity beneath the volcano steadily intensified.
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MOUNT ST. HELENS NATIONAL MONUMENT, Wash. - A second long tremor early Sunday and an increase in volcanic gases strongly suggest magma is moving inside this seething volcano.
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SEATTLE - The flurry of earthquakes at Mount St. Helens intensified further yesterday, and one scientist put the chance of a small eruption happening in the next few days at 70 percent.
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SEATTLE A series of increasingly strong earthquakes at Mount St. Helens may be signaling a small explosion. A swarm of hundreds of earthquakes began Thursday.
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Federal officials have stepped up the alert level on Mount Saint Helens in southwestern Washington state. The Level Three alert indicates a possible threat to life and property.
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MOUNT ST. HELENS - Part of Mount St. Helens&#39; crater has risen an additional 100 feet in the past few days, more evidence of change in the volcano as it enters a new period of activity.