[unav_all] AGU Session: California Volcanism

Emily Montgomery-Brown emilymb1 at gmail.com
Tue Jul 9 15:55:55 MDT 2013

Dear Colleagues,

We would like to encourage you to submit abstracts to the following session
at the 2013 Fall Meeting of the American Geophysical Union (AGU) this
coming *December 9-13*. All abstract submissions must be received by *6
August 2013 *at 23:59ET/3:59+1 GMT.
V047. Volcanism in California: Geophysics, Geology, and Geochemistry of the
young and the restless*

The USGS established California Volcano Observatory (CalVO) in February
2012 to improve coordination with emergency response agencies and create
new opportunities for volcanic hazard awareness and collaborative research.
CalVO has broad responsibility for all of California’s potentially
threatening volcanoes, most notably Mount Shasta, Medicine Lake, Clear Lake
Volcanic Field, and Lassen Volcanic Center in the north; Long Valley
Caldera and Mono-Inyo Craters in east-central California; and Salton
Buttes, Coso Volcanic Field, and Ubehebe Craters in the southern part of
the state.

California is geologically diverse, exhibiting a range of volcanism
resulting from subduction, crustal thinning, and extensional rifting in the
northern, central, and southern parts of the State, respectively. Volcanic
eruptions occur in the State about as frequently as the largest San Andreas
Fault Zone earthquakes-more than ten eruptions have occurred in the last
1,000 years, most recently at Lassen Volcanic Center (1666 C.E. and
1914-1917 C.E.) and Mono-Inyo Craters (c. 1700 C.E.).  The Long Valley
Caldera and Mono-Inyo Craters region underwent several episodes of
heightened unrest over the last three decades, including intense swarms of
VT earthquakes, rapid ground uplift, and dangerous CO2 emissions.  Both
Medicine Lake and Lassen are subsiding at the appreciable rate of 8-10
mm/year, and along with Clear Lake, sporadically experience LP earthquakes
related to migration of magma or hydrothermal fluid.  With the exception of
Ubehebe Craters, all of California’s  “watch list” volcanoes support
vigorous hot springs, boiling mudpots, and/or fumarolic activity, and four
are geothermal power producers.

This session is an opportunity to review current knowledge of California
volcanism and identify future research directions at potentially
threatening volcanoes. This session provides an opportunity to review the
current state of knowledge at California and Nevada volcanoes and identify
future research directions. We encourage geophysical, geological and
geochemical studies contributions on topics including:  volcanic history,
magma sources and fluxes; current seismicity, deformation, and degassing;
tectonic-magmatic interactions; multidisciplinary research; and volcanic
hazard assessment and mitigation.

AGU Fall Meeting Website:

Thank you,

Emily Montgomery-Brown, Margaret Mangan, David Shelly
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