It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
How many posts do I have to prove to you guys that earthquakes do not or ever will trigger a volcanic eruption. Take some geology courses before you post junk like this.
From these clues scientists have deduced that the triggering event on May 18 was a fairly severe earthquake (magnitude 5) that dislodged a gigantic bulge, formed in recent weeks on the mountain's north side. In the largest landslides ever recorded by American geologists, this bulge slipped down the mountain like a vast sliding door.
With this ''door'' open, rock that had become supercharged with highly compressed gas exploded, ejecting to the north a tremendous horizontal blast. The reconstruction has removed uncertainty over whether the earthquake caused the eruption or vice versa.
The quake that immediately preceded the eruption was no different from the many that had occurred in recent weeks, though unusually intense. Its only novel feature, according to Dr. Malone, was the eight-minute series of tremors that followed the quake, caused by subsequent landslides and avalanches. Measuring Tremors and Swellings
Originally posted by Anmarie96
Robin, Don't Dare You Reply or acknowledge this post!
kro - at this point you do not even deserve any of our attention. I will not give it to you again. Maybe me thinks you should take a course or maybe two.
Ahh West Coast - beat me in the typing room as I was strugling with links here - you rock
Originally posted by kro32
Thank you for that response westcoast...you are an informed poster and I always like your opinion. However you are still incorrect. Mt.St. Helens was near the point of eruption anyways. It was going to go anyways.
I must also point out that the earthquakes were in fact being triggered by the impending volcanic eruption and it was not an isolated event.
The main point here is that Yellowstone will not erupt until the sufficient requirements are present for an eruption to occur. It's akin to throwing a match into your gas tank looking for an explosion with no gas in it. Just not gonna happen.
“It’s very common for the two to be linked,” said Jonathan Snow, a volcanologist at the University of Houston. “Volcanic eruptions are usually preceded by earthquakes large and small.”
The close geological connection is rooted in the shifting of Earth’s tectonic plates against each other that can also jostle magma beneath volcanoes, urging it upward.
In fact, since seismic shifts are so closely related to volcanic action, geologists listen in to the seismic movements around volcanically active regions to predict when earthquakes might spark volcanic eruptions.
“Many of the active volcanoes in Cascades are literally wired for sound,” Snow said.
Likewise, the geological chain reaction linking earthquakes and volcanoes takes place deep in the ground where it can’t be seen.
In order for earthquakes to set off a volcano, the magma reservoir beneath the fiery mountains must be already primed to blow.
“If you have a magnitude 6.0 earthquake, a magnitude 7.0 earthquake, somewhere relatively nearby, then those waves cause small strains, a little bit of deformation (in the rock surrounding the magma chambers) -- a small amount -- but it might be just enough to trigger an eruption,” said Cindy Ebinger, a geophysicist from the University of Rochester in New York. “For it to trigger, whatever those seismic waves are perturbing has to be nearly ready to go as it is.”