Eruptions

Archives for March, 2009

Redoubt erupts (? … !)

Date: February 07, 2009 Image Creator: Bleick, Heather Image courtesy of AVO/USGS. So much for my oh-so-eloquent eulogy for early 2009 activity at Redoubt. AVO reports that it appears that the volcano has potentially erupted – or at least released a lot of steam and (possibly) ash. Seismic activity at Redoubt has increased since about…

One last Redoubt bit …

I missed this the first time, but Click & Clack from NPR’s Car Talk answered a question about how to volcano-proof your car. If you want to hear it, click here. As usual, the guys in Cambridge (our fair city) do an excellent job with the information and the humor. {Hat tip to Jen Glass…

Photo: The north flank of Mount Redoubt in early February 2009. Credit: Chris Waythomas / Alaska Volcano Observatory/U.S. Geological Survey I’ve been following the waxing and waning of activity at Mt. Redoubt in Alaska for the past two months like many of you have. For a time there, the volcano had the nation’s attention, both…

Galeras Erupts Again

2009 has been a busy year for Volcan Galeras in Colombia. The volcano has erupted at least twice this year already vigorously enough to prompt evacuations of the area. Galeras does tend to see cycles of eruptive activity, the last one started in 2000 after seven years of quiet. Many times, the eruptions are more…

Welcome to Eruptions

Welcome to version 2.0 of Eruptions, the blog on volcanic eruptions and volcano research in general. I’ve been writing this blog (starting over on WordPress) over the last year or so, but now it has found a new home here at ScienceBlogs. If you’re wondering what to expect if you’re new to Eruptions, I’ll be…

Two tidbits from New Zealand: – A recent survey of volcanoes in the Kermadec Arc north of New Zealand suggest that there is abundant – and recent – undersea volcanism. Scientists from University of Washington (one of my former homes) and Southhampton University (UK) explored a number of submarines volcanoes including Rumble II West, Rumble…

How volcanoes affect the economy

Photos by Dr. Edward Kohut, all rights reserved, used by permission, 2009 Many times people think that volcanic eruptions affect the economy through the destruction inflicted upon the landscape during an eruption: lahars and pyroclastic flows destroying bridges and homes, ash ruining crops and water, lava flows overunning communities. However, in Hawai’i, a new effect…

Sakurajima Eruption Video

I am back from the ion microprobe lab at Stanford after a few days of data collection, so I’ll be trying to get back on posting schedule here at Eruptions. UPDATE 3/10/2009 12:45PM: Here is a little (and I mean a little) more information, mostly adding that the local residents have been given a “warning”…

AVO has officially downgraded the status at Redoubt from “Watch” (orange) to “Advisory” (yellow). The seismicity at the volcano has dropped off for the last couple weeks and signs that an eruption was imminent have waned. This, again, shows the difficulty in trying to predict the behavior of a volcano. All the signs were there…

Extremophiles, Volcanoes and You

Folks have been suggesting that life on Earth started near volcanic vents for a long time now (and of course, some people don’t buy it). Whether or not life sprung forth near hydrothermal vents, undersea black smokers or from the head of Zeus, it doesn’t really change the fact that we find organisms living in…