Stovall, W.K., Wilkins, A.M., Mandeville, C.W., and Driedger, C.L., 2016, U.S. Geological Survey Volcano Hazards Program—Assess, forecast, prepare, engage: U.S. Geological Survey Fact Sheet 2016–3040, 4 p., http://dx.doi.org/10.3133/fs20163040.
Wendy Stovall, Ph.D.
Science and Products
Year Published: 2019
Living with volcano hazards
Volcanic eruptions are among Earth’s most dramatic and powerful agents of change. Ash, mudflows, and lava flows can devastate communities near volcanoes and cause havoc in areas far downwind, downstream, and downslope. Even when a volcano is quiet, steep volcanic slopes can collapse to become landslides, and large rocks can be hurled by powerful...
Stovall, Wendy K.; Driedger, Carolyn L.; Westby, Elizabeth G.; Faust, Lisa M.Attribution: , Volcano Hazards Program Office
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Stovall, W.K., Driedger, C.L., Westby, E.G., and Faust, L.M., 2019, Living with volcano hazards: U.S. Geological Survey Fact Sheet 2018–3075, 6 p., https://doi.org/10.3133/fs20183075.
Year Published: 2014
The California Volcano Observatory: Monitoring the state's restless volcanoes
Volcanic eruptions happen in the State of California about as frequently as the largest earthquakes on the San Andreas Fault Zone. At least 10 eruptions have taken place in California in the past 1,000 years—most recently at Lassen Peak in Lassen Volcanic National Park (1914 to 1917) in the northern part of the State—and future...
Stovall, Wendy K.; Marcaida, Mae; Mangan, Margaret T.Attribution: , Volcano Hazards Program Office
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Stovall, W.K., Marcaida, Mae, and Mangan, M.T., 2014, The California Volcano Observatory—Monitoring the State’s Restless Volcanoes (ver. 1.1, June 2019): U.S. Geological Survey Fact Sheet 2014–3120, 4 p., https://doi.org/10.3133/fs20143120.
Year Published: 2011
Newberry Volcano—Central Oregon's Sleeping Giant
Hidden in plain sight, Oregon's massive Newberry Volcano is the largest volcano in the Cascades volcanic arc and covers an area the size of Rhode Island. Unlike familiar cone-shaped Cascades volcanoes, Newberry was built into the shape of a broad shield by repeated eruptions over 400,000 years. About 75,000 years ago a major explosion and collapse...
Donnelly-Nolan, Julie M.; Stovall, Wendy K.; Ramsey, David W.; Ewert, John W.; Jensen, Robert A.Attribution: , Volcano Hazards Program Office
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Newberry Volcano—Central Oregon's Sleeping Giant; 2011; FS; 2011-3145; Donnelly-Nolan, Julie M. ; Stovall, Wendy K. ; Ramsey, David W. ; Ewert, John W. ; Jensen, Robert A.
Pre-USGS Publications
WK Stovall, BF Houghton, JE Hammer, SA Fagents, DA Swanson (2012) 74:441-455. doi:10.1007/s00445-011-0531-7
Stovall, W.K., Houghton, B.F., Gonnermann, H. et al. Bull Volcanol (2011) 73: 511. doi:10.1007/s00445-010-0426-z
Stovall, W.K., Houghton, B.F., Harris, A.J.L. et al. Bull Volcanol (2009) 71: 767. doi:10.1007/s00445-009-0263-0
Stovall, W.K., Houghton, B.F., Harris, A.J.L. et al. Bull Volcanol (2009) 71: 313. doi:10.1007/s00445-008-0225-y
Date published: May 6, 2019
The National Volcano Early Warning System (NVEWS) will help USGS better monitor nation’s most dangerous volcanoes
In September 2004, USGS scientists detected sudden, but unmistakable, signs that Mount St. Helens was waking up. Volcano monitors had picked up the occurrence of hundreds of small earthquakes and other signals that the volcano’s crater floor had begun to rise. Within a week, several eruptions blasted clouds of ash into the atmosphere, and soon after, a new lava dome emerged in the crater.
Date published: September 24, 2018
Changes are afoot in Yellowstone's Upper Geyser Basin!
In about 500 BCE, Heraclitus of Ephesus declared "life is flux." Today, we know the saying better as, "the only constant is change." This is true of life -- and also of hydrothermal systems.
Attribution: Yellowstone Volcano Observatory, Yellowstone
Date published: May 14, 2018
Steamboat Counter
Steamboat Geyser, in the Norris Geyser Basin, is in a phase of more frequent water eruptions, much like in the 1960s and early 1980s. Although these eruptions do not have any implications for future volcanic activity at Yellowstone (after all, geysers are supposed to erupt, and most are erratic, like Steamboat), they are nonetheless spectacular.
Date published: May 18, 2017
Ever Vigilant: USGS Marks the 37th Anniversary of Mount St. Helen's Eruption and the 35th Anniversary of the Cascades Volcano Observatory
Today, in 1980, Mount St. Helens unleashed the most devastating eruption in U.S. history. Two years later, USGS founded the Cascades Volcano Observatory to monitor Mount St. Helens and all the Cascades Volcanoes.
Date published: May 18, 2017
Volcano Watch - HVO's website makeover is more than skin deep
A new structure allows for a more efficient and consistent website, with simplified maintenance that leads to fewer broken links.