volcanoes
May 12, 2020
Seismologists to host virtual event on 40th anniversary of Mount St. Helens eruption
The Pacific Northwest Seismic Network, based at the University of Washington, will host an online event on the 40th anniversary of the eruption of Mount St. Helens, featuring seismologists from the UW and other institutions who can explain the events before, during and after the historic blast. The virtual event will take place from 6:30…
November 2, 2016
New study co-authored by UW geologists looks at what lies below Mount St. Helens
Research that peers below Mount St. Helens finds that the material below the western and eastern half of the mountain is different material and temperatures, and suggests that the source of explosive magma is coming from the east.
June 13, 2016
Arc volcano releases mix of material from Earth’s mantle and crust
Rock from a common type of volcano shows surprising evidence of the descending tectonic plate. Analyses show that magnesium atoms are somehow drawn out of the crust, deep below the surface.
October 1, 2015
Simulating path of ‘magma mush’ inside an active volcano
The first simulation of the individual crystals in volcanic mush, a mix of liquid magma and solid crystals, shows the mixing to help understand pressure buildup deep inside a volcano.
April 30, 2015
Seafloor sensors record possible eruption of underwater volcano
Sensors on the ocean’s floor installed by UW researchers show that late on April 23, a seismic event took place on the 3,000-foot underwater volcano off Oregon’s coast.
June 18, 2014
Scientists ready to study magma formation beneath Mount St. Helens
Scientists are embarking on research to improve volcanic eruption forecasting by learning more about how a deep-underground feeder system creates and supplies magma to Mount St. Helens.
July 14, 2013
Some volcanoes ‘scream’ at ever-higher pitches until they blow their tops
Swarms of small earthquakes before a volcanic eruption can come in such rapid succession that they create a signal called harmonic tremor. A new eruption analysis from Alaska’s Redoubt Volcano shows the harmonic tremor glided to higher frequencies, then stopped abruptly just before six eruptions in 2009.
December 3, 2012
Russian Far East holds seismic hazards that could threaten Pacific Basin
The Kamchatka Peninsula and Kuril Islands, long shrouded in secrecy by the Soviet government, are a seismic and volcanic hotbed with a potential to trigger tsunamis that pose a risk to the rest of the Pacific Basin.
