volcano

Max Kaufman / Alaska Volcano Observatory/University of Alaska Fairbanks Geophysical Institute

Most volcanoes rumble before they erupt, but Washington and Alaska researchers say a big recent eruption was preceded not by a rumble, but a scream.

Alaska’s Mount Redoubt blew its top several times in 2009. Leading up to many of the explosions were a series of little earthquakes—not uncommon for an active volcano. But these quakes began to accelerate, one after another, like a drumbeat building to a climax.

NEWPORT, Ore. - For the first time, we're getting to listen to the eruption of an undersea volcano off the Northwest coast. Correspondent Tom Banse got a hold of unusual recordings made at a place called Axial Seamount. It's about 300 miles out to sea from Cannon Beach, Oregon.

Researchers from Oregon State University deployed instruments on the seafloor in anticipation of an eruption at Axial Seamount last year. At first, an underwater microphone - called a hydrophone - captured the low-frequency rumblings of small earthquakes. The sped up audio sounds like a loud bump.

“It’s not a question of if, but when, the next volcanic event will occur”

When it blows, Mount Rainier might produce “Lahar,” or volcanic mudflow, that could cause property losses of up to $6 billion in the Puyallup Valley, a new study by the Washington State Department of Natural Resources shows.

Image courtesy of Kate Saunders

If you’re wondering when Mount St. Helens is due to erupt again, so are a lot of scientists, and they’re finding new ways to forecast when eruptions are likely.

The latest idea uses crystals that form deep beneath the surface.

There's a new lava dome forming on top of Alaska's Cleveland Volcano, and the Alaska Volcano Observatory bumped up its aviation warning level to orange. That means the volcano is "exhibiting heightened or escalating unrest with increased potential of eruption".

Courtesy of University of Washington

A University of Washington research ship is sending amazing live video of the aftermath of an undersea volcanic eruption. The large volcano is about 300 miles due west of Astoria, Oregon.

Some scientists theorize life on our planet started at a place like this.

woodleywonderworks / Flickr

The Johnston Ridge Observatory opens Saturday at Mount St. Helens with some new displays to tell visitors the story of the volcano's big 1980 eruption.

The Daily News of Longview reports $1.6 million worth of improvements and enhancements have been made. When the Forest Service and Mount St. Helens Institute discussed them Tuesday, the center of attention was a touch-screen kiosk.

AP

With massive flooding in Australia in the news, or earthquakes in South America, perhaps it’s no surprise that 2010 was the most deadly year in a generation for natural disasters around the globe.  What’s the worst we might face here in western Washington?