Shasta
eklemetti | August 2, 2010
Mt. Elbrus in southern Russia, one of the active volcanoes in the Caucasus Mountains. (Note the prominent flow levees sticking out of the snow cover on the dacite lava flow in the middle of the image.)
Most people (including myself) aren't fully aware of the active volcanoes in the Caucasus Mountains, but sure enough, there are volcanoes that have erupted fairly recently (geologically-speaking). One of the active volcanoes in the Caucasus Mountains of Russia is Mt. Elbrus, just north of the border with Georgia, and it has erupted as recently as ~50 A.D., which for a volcano is the blink of…
eklemetti | June 14, 2009
Mt. Saint Helens in Washington state, USA
I'm back from my sojourn to New England and its time to play catch up. First things first!
There has been a lot of chatter in my inbox and on the comments here at Eruptions about the study/press release from Graham Hill's research group talking about the potential for a supervolcano forming at Mt. Saint Helens. This study (presented at the AGU Spring Meeting) was based on a magnetotelluric study of the area around (and below) Saint Helens. For those of you unfamiliar with magnetotellurics, it uses instruments that measure the magnetism and electrical…
eklemetti | April 30, 2009
Volcano monitoring. Image courtesy of the USGS.
Last night I had the opportunity to see a talk given by YVO Scientist-in-Charge Dr. Jake Lowenstern as part of the Volcanological Society of Sacramento meeting and he gave a great talk on the state of volcano monitoring today in the U.S. He laid out a lot of details concerning the Volcano Hazards Program of the USGS and I thought I'd share some of them so we can all have an idea of the ups and downs of the VHP these days.
First off, nothing says fun like the U.S. Volcano Status Map! Apparently the dreaded watch "eye" was not meant to be a…
eklemetti | March 27, 2009
Back in a former life, I was really into radio and music. Such an existence calls for many lists of rankings: "Best albums of 2004", "All time greatest soul singers", "Worst album covers of the 1980s". And, although I love a list as much as the next person, I tend to find lists appalling. Why? Well, mostly because no "Top list" of anything is accurate, and even worse, most of the time they're put together to generate controversy. "Wait until they see I listed Wade Boggs as the best third basemen in history!" You know, that sort of thing.
Anyway, much to my surprise (chagrin?), I recently an…
eklemetti | October 17, 2008
The only volcanic arc in the lower 48 states continues to be pretty darn quiet according to the USGS. The Cascade range that spans from Lassen Peak in the south to Mt. Baker in the north (and maybe Mt. Garibaldi in Canada) has been remarkably quiet in terms of eruptions for the last century. In fact, only Mt. Saint Helens and Lassen Peak have erupted since 1900 - and most of the volcano have shown very few signs of even coming close to eruption beyond minor seismic swarms, steaming or land deformation. This is in contrast to the reports from the 1800s that suggest that Hood, Shasta, St.…