Magma rising in Washington state's Mount St. Helens volcano : USGS

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Magma rising in Washington state's Mount St. Helens volcano : USGS

<p><a href="http://news.yahoo.com/magma-rising-washington-states-mount-st-helens-volcano-194505418.html"><img src="http://l.yimg.com/bt/api/res/1.2/_efdR_hkzcU4id4YfJT0FA--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9NzU7dz0xMzA-/http://media.zenfs.com/en_us/News/Reuters/2014-05-01T194703Z_1_LYNXMPEA4017W_RTROPTP_2_ENVIRONMENT-VOLCANO.JPG" width="130" height="86" alt="Visitors look up at Mount St Helens venting steam from crater." align="left" title="Visitors look up at Mount St Helens venting steam from crater." border="0" /></a>By Eric M. Johnson SEATTLE (Reuters) - Magma levels are slowly rebuilding inside Mount St. Helens, a volcano in Washington state that erupted in 1980 and killed 57 people, although there was no sign of an impending eruption, U.S. scientists said. &quot;The magma reservoir beneath Mount St. Helens has been slowly re-pressurizing since 2008,&quot; the U.S. Geological Survey said in a statement on Wednesday. &quot;It is likely that re-pressurization is caused by (the) arrival of a small amount of additional magma 4 to 8 km (2.5 to 5 miles) beneath the surface.&quot; The USGS said this is to be expected with an active volcano and does not indicate &quot;the volcano is likely to erupt anytime soon.&quot; The USGS, and the Pacific Northwest Seismic Network at University of Washington, closely monitor ground deformation and seismicity at the volcano.</p><br clear="all"/>

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