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Newberry volcano is a broad shield volcano located in central Oregon
It has been built by thousands of eruptions, beginning about
600,000 years ago. At least 25 vents on the flanks and summit have
been active during several eruptive episodes of the past 10,000 years.
The most recent eruption 1,300 years ago produced the Big Obsidian
Flow. Thus, the volcano's long history and recent activity indicate
that Newberry will erupt in the future. ...
This report describes the kinds of hazardous geologic events that
might occur in the future at Newberry volcano. A hazard-zonation map
is included to show the areas that will most likely be affected by
renewed eruptions. In terms of our own lifetimes, volcanic events
at Newberry are not of day-to-day concern because they occur so infrequently;
however, the consequences of some types of eruptions can be severe. When
Newberry volcano becomes restless, be it tomorrow or many years from
now, the eruptive scenarios described herein can inform planners,
emergency response personnel, and citizens about the kinds and sizes
of events to expect.
-- Sherrod, et.al., 1997
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[Map,23K,InlineGIF]
[Graphic,15K,InlineGIF]
