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Crater Lake National Park (U.S. National Park Service)
-
Crater Lake is located in Southern Oregon on the crest of the Cascade Mountain
range, 100 miles (160 km) east of the Pacific Ocean. -
It lies inside a caldera, or volcanic basin, created when the 12,000 foot (3,660
meter) high Mount Mazama collapsed 7,700 years ago following a large eruption.
Mount St. Helens - Wikipedia, the free encyclopedia
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USGS Mount St. Helens
-
map #26
USGS
Mount St.
Helens
Type
#21
Active
stratovolcano
Volcanic
arc
/
belt
Cascade
Volcanic Arc
Age of
rock
< #20
40,000
yrs
Last
eruption
#19
2004–2008
(ongoing)
First
ascent
#18
1853
by
Thomas
J.
Dryer
Easiest
route
#17
Hike via
south
slope of
volcano (closest area near eruption
site)
#1
Mount
St.
Helens
is an
active
stratovolcano
located
in
Skamania
County
,
Washington
, in
the
Pacific
Northwest
region
of
the
United
States
.
#2
It is 96
miles
(154
km)
south
of
Seattle
and 53
miles
(85
km)
northeast
of
Portland,
Oregon
.
#12
Mount
St.
Helens takes
its
English
name
from
the
British
diplomat
Lord St
Helens
,
a
friend
of
explorer
George
Vancouver
who made
a
survey of the
area
in the
late
18th
century.
#3
The mountain
is
located in
the
Cascade
Range
and is part
of
the
Cascade
Volcanic
Arc
, a segment
of
the
Pacific Ring
of
Fire
that
includes
over
160
active
volcanoes
.
#10
This volcano
is
well known for
its
ash
explosions
and
pyroclastic
flows
.
#4
Mount
St.
Helens is most
famous for
its
- 1 more annotations...
Mount Rainier - Wikipedia, the free encyclopedia
-
Mount Rainier is an active[1] stratovolcano
-
- 2 more annotations...
Mount St. Helens National Volcanic Monument
-
the north face of this tall symmetrical mountain collapsed in a massive rock
debris avalanche. Nearly 230 square miles of forest was blown down or buried
beneath volcani -
Shaken by an earthquake measuring 5.1 on the Richter scale
- 2 more annotations...
Mauna Loa - Wikipedia, the free encyclopedia
-
Mauna Loa is the 2nd largest volcano on earth
-
Although native
Hawaiians have witnessed eruptions for many centuries, written records exist
only for eruptions that have occurred since the early 1800s
Kīlauea - Wikipedia, the free encyclopedia
-
Hilo
-
1,100 years old; 70%
- 1 more annotations...
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