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How many earthquakes were there before the eruption of mount st Helens?
Wiki User
∙ 11y ago
there was an eruption in:
- 2004
- 1980
- 1867
- 1831
- 1480
those are all the dates I know of... I think there were more before that...
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoI believe 38 times including the 1980 eruption, but 45 or more counting all the little eruptions that have occured since.
Wiki User
∙ 12y agoMount st. Helens has had nine total eruptions over the past 2200 years
Wiki User
∙ 13y agoI don't know the full total but the two major ones were a 5.9 magnitude aftershock one minute later and a 5.6 magnitude aftershock eleven hours after the main tremor.
Wiki User
∙ 14y agoTwo times T_T
Wiki User
∙ 12y agothere was around 10000000 :)
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When did the earthquakes happen in the mount St. Helens eruption of 1980?
March 20, 1980 was the date of the big eruption.
Where was the Mount St. Helens eruption?
in wahington the state
How did people prepare for the eruption of mount saint helens?
how did people prepare for the mt. st. helens eruption
When did mount etna and mount st Helens erupt last?
The eruption of Mount St. Helens in 1980 lasted for 9 hours
How many deaths occured in the mount St Helens eruptions?
The 1980 eruption of Mount St. Helens killed 57 people.
When did the earthquakes happen in the mount St. Helens eruption of 1980?
March 20, 1980 was the date of the big eruption.
How big was the last eruption of Mount Fuji compared to the eruption of Mount Saint Helens?
about as 50% chance that mount saint helens' eruption is way bigger than mount fuji
Where was the Mount St. Helens eruption?
in wahington the state
What was mt st Helens most famous eruption?
The 1980 eruption of Mount St. Helens.
How did people prepare for the eruption of mount saint helens?
how did people prepare for the mt. st. helens eruption
When did mount etna and mount st Helens erupt last?
The eruption of Mount St. Helens in 1980 lasted for 9 hours
What was the latest eruption of Mount St. Helens?
The latest eruption was in 2008.
What is the difference in height of mount st helens before and after the eruption expressed in meters?
About 400 meters
What is the difference in height of Mount St. Helens before and after the eruption express in meters?
About 400 meters
How many deaths occured in the mount St Helens eruptions?
The 1980 eruption of Mount St. Helens killed 57 people.
How did mount st helens effect humans?
The way Mount Saint Helens affect mankind is that Mount Saint Helens eruption destroyed lots of homes killed 57 people in the eruption and the eruption from Mount Saint helens cost over one billion dollars in damage.
What was the physical destruction of Mount St Helens eruption?
Just that. A volcanic eruption
