Volcano Hazard

<div><p style='background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-size:11.5pt; font-family:Helvetica, sans-serif;'>Volcanic eruptions are
most likely to occur in the Pacific Rim states, which include Oregon. The
primary danger area around a volcano covers an approximately 20-mile radius,
although there is some danger to people within 100 miles or more. Airborne ash
from a volcano can affect people hundreds of miles away from the eruption. The
most common volcano-related hazards are ash (tephra), lahars (volcanic mud
flows), lava and debris flows, avalanches, and pyroclastic flows.</span></p><p style='background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-family:Helvetica, sans-serif; font-size:11.5pt;'>These data depict areas
where volcanic hazards may occur during or after volcanic activity. Volcanoes
can produce volcanic ash, mudflows, debris flows, avalanches of hot volcanic
material, lava flows, and landslides. Residents and visitors to these areas
should have an evacuation plan ready should volcanic activity begin.</span></p>

<p style='margin-bottom:7.5pt; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-size:10.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#333333;'>DOGAMI
used data from the U.S. Geological Survey (USGS) Cascades Volcano Observatory
(CVO) for this web application. CVO maintains proximal and distal hazard zone
data for five volcanic areas in the Western Cascades of Oregon. These areas
include Mount Hood, Crater Lake, Newberry, Mount Jefferson, and the Three
Sisters. HazVu shows these data as two hazard zones: the high hazard zone
(proximal zone) and moderate hazard zone (distal zone). Any person or structure
located within these hazard zones should have an evacuation plan ready should
volcanic activity begin.</span></p>

<p style='margin-bottom:7.5pt; background-image:initial; background-position:initial; background-size:initial; background-repeat:initial; background-attachment:initial; background-origin:initial; background-clip:initial;'><span style='font-size:10.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#333333;'>More
information: <a href='https://volcanoes.usgs.gov/observatories/cvo/' rel='nofollow ugc'><span style='color:#3344DD;'>USGS Cascades Volcano Observatory</span></a> or <a href='https://www.oregon.gov/dogami/mthood/Pages/index.aspx' rel='nofollow ugc'><span style='color:#3344DD;'>DOGAMI/Mount Hood Risk Study</span></a></span></p></div>