When was the last time Mount St. Helens erupted?
1980
May 18, 1980
May 18, 1980
May 18, 1980
21st century
May 18, 1980
May 18, 2008
21st century
May 18, 1980
May 18, 2018
May 18, 2008
May 18, 2017
May 18, 2012
May 18, 1980
21st century
May 18, 2018
May 20, 1980
May 18, 2008
1980
May 18, 2017
May 18, 2012
May 18, 1980
May 18, 2013
1980
21st century
May 18, 2018
May 17, 1980
14-Mar-18
May 18, 2008
May 18, 2017
May 9, 1980
May 18, 2012
May 18, 1980
1980
May 18, 2013
May 18, 2018
May 20, 1980
May 18, 2008
1980
May 18, 2017
May 18, 1980.
May 18, 2012
May 18, 2001
May 18, 2014
21st century
May 18, 1980
May 18, 2013
1980
May 18, 2018
14-Mar-18
May 18, 2008
May 18, 1894
May 18, 2017
May 18, 2012
May 18, 2001
May 18, 2014
May 20, 1980
May 18, 1980
1980
May 18, 2013
20th century
3000 years ago
May 18, 2018
18th-century
May 18, 2008
1980
May 18, 2017
May 18, 2012
May 18, 2001
May 18, 2014
May 18, 1980
May 18, 2013
14-Mar-19
May 18, 1980.
May 18, 1894
1980
3000 years ago
May 18, 2018
20th century
May 18, 2008
May 18, 2017
May 18, 2012
May 18, 2001
May 18, 2014
May 18, 1980
1980
May 18, 2013
18th-century
May 18, 2018
3000 years ago
20th century
May 18, 2008
1980
1866
May 18, 2017
May 18, 2012
May 18, 2001
14-Mar-19
May 18, 1980
May 18, 1980.
May 18, 2013
May 18, 1866
18th-century
14-Mar-18
1980
May 18, 2018
May 18, 1894
VENONA
1866
25 years ago
May 18, 2009
May 18, 2014
May 18, 2008
May 18, 2017
May 18, 2012
May 18, 1980
1980
May 18, 2013
1st
18th-century
May 18, 1889
May 18, 2018
1866
2009
May 18, 1894
VENONA
May 18, 2001
May 18, 2009
May 18, 2008
1980
May 18, 1866
May 18, 2017
May 18, 2012
14-Mar-18
May 18, 1980
21st Century
May 18, 2013
1st May
2009
May 18, 1980.
1996
May 18, 2014
1980
May 18, 2018
18th-century
1857
May 18, 2008
May 18, 2017
1866
May 18, 2012
2009
May 18, 1889
1996
May 18, 1980
1980
May 18, 2013
20th century.
May 18, 2000
May 18, 2018
14-Mar-18
2009
1991
1857
1996
21st Century
May 18, 2008
1980
14-Mar-19
May 18, 2017
May 18, 2012
May 18, 1882
May 18, 1866
May 18, 2001
May 18, 2009
May 18, 2014
May 18, 1980
1989
May 18, 2013
1866
2009
May 18, 1894
1991
1996
1980
May 18, 2018
1st
2001
May 18, 2008
21st Century
1989
May 18, 2017
May 18, 2010
May 18, 2012
2009
May 18, 2000
1991
2017
May 18, 1866
May 18, 2005
1996
May 18, 2001