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A Supervolcano Beneath Mt. St. Helens?
We've discussed the supervolcano beneath Yellowstone a few times here (not going to blow, 2004; going to blow, 2008). Now scientists are pondering whether a large area of conductive material beneath Mt. St. Helens might contain enough magma that the area could be classed a supervolcano. The jury is still out on this one. Reader nhytefall sends us a New Scientist progress report. "Magma can be detected with a technique called magnetotellurics, which builds up a picture of what lies underground by measuring fluctuations in electric and magnetic fields at the surface. The fields fluctuate in response to electric currents traveling below the surface, induced by lightning storms and other phenomena. The currents are stronger when magma is present, since it is a better conductor than solid rock. ... [M]easurements revealed a column of conductive material that extends downward from the volcano. About 15 km below the surface, the relatively narrow column appears to connect to a much bigger zone of conductive material. This larger zone was first identified in the 1980s by another magnetotelluric survey, and was found to extend all the way to beneath Mount Rainier 70 km to the north-east, and Mount Adams 50 km to the east. It was thought to be a zone of wet sediment, water being a good electrical conductor. ... [Some researchers] now think the conductive material is more likely to be a semi-molten mixture. Its conductivity is not high enough for it to be pure magma.. so it is more likely to be a mixture of solid and molten rock."
"Liberty may be endangered by the abuses of liberty as well as the abuses of power." -- James Madison
This volcano monitoring spending was part of an economic stimulus bill.
What in the hell does spending on volcano monitoring have to do with stimulating the economy, I have no idea. Maybe we should be funding this, but it has nothing to do with the issue that he was addressing.
It was a bit clumsy, but Jindal was dead on correct in criticizing the pork that goes on in Congress.
There's always a volcano about to erupt, or a fault going to shatter in an earthquake, or a comet that's going to smash into the earth, or a polar ice cap that's going to melt. It's always something.
Wake me up when Vesuvius erupts; California becomes "the Island previously known as California"; New York is under water; or an planet splitting meteor strikes. Otherwise, it's not news, it's fear mongering. Wolf has been cried too many times for people to be concerned any more.
I've lived in Florida for years. Hurricanes are far more likely to blow through than a volcano destroying a vast swath of the US, yet seasoned residents (those of us who have lived through more hurricanes than we can count) just make sure we have some food and water at home, and a way to cook. Live on high ground, and cross your fingers a tornado doesn't take your house away. Tornadoes during hurricanes are very likely, but the square footage of land destroyed (houses, upturned cars, etc) are so small compared to the square miles of potential damage area that you may as well play the lottery and expect to win.
Serious? Seriousness is well above my pay grade.
Look on the bright side. A volcano just does what it does. It won't try to hold a city hostage like professional sports teams do!
The point is that the very large and active Mt. St Helens could be just a small vent for a much larger volcano. One who's crater / caldera is close to 2000 square miles. If true, something like this going off would make Krakatoa look like firecracker. As in, all of the US and a good chuck of Canada and Mexico covered with ash.
Math is like sex. People who get it are popular in class, people who don't are not.
I live between Mt. Adams and Mt Hood. If you look around the area there are many extensive lava beds and lava tubes. The walls of the Columbia Gorge consist of multiple 50 ft. thick lava layers - just saying. IANAG