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How did scientists know to evacuate 85000 people before Mt Pinatubo erupted in May 1991?
Wiki User
∙ 9y ago
First, the main eruption was in June, not May.
There were a number of signs, starting with earthquakes and steam explosions indicating the volcano was becoming active. Gas measurements and later earthquakes clearly showed that magma was rising. The volcano's activity gradually escalated until its climactic eruption. When a lava dome appeared on the flanks, it was a sign that Pinatubo was about ready to blow.
Furthermore, by studying deposits in the surrounding area, scientists knew that Pinatubo was prone to very large eruptions and so represent a very great danger.
Wiki User
∙ 9y ago
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Was there time for people to evacuate before the Krakatoa erupted?
no you smell
Did mount Pinatubo erupt before 1991?
Not in recorded history, but it had erupted before, otherwise there would be no Mount Pinatubo. Its last eruption before 1991 was about 600 years ago.
What would happen if mount Pinatubo erupted again?
This would depend on the type of eruption that Pinatubo were to produce. The only record of eruption of the volcano are of the 1991 event. Although scientists know that the volcano had erupted in an explosive manner before it is unclear what other types of eruptions it can produce. Although unlikely that Pinatubo will erupt in the near future it is a possibility. The eruption is not likely to be as explosive as the 1991 event as the amount of time between eruptions of that magnitude should be longer, given the otherwise unknown history of the volcano. This would suggest that it does not erupt frequently; however, when it erupts it seems to be catastrophic in nature.
What do you call molten rock before it has erupted?
What do you call molten rock before it has erupted
Did Mount Ararat ever erupted?
Mount Ararat has erupted before, a long time ago, but I don't know when. But it has erupted before, that's for sure!
Was there time for people to evacuate before the Krakatoa erupted?
no you smell
Did mount Pinatubo erupt before 1991?
Not in recorded history, but it had erupted before, otherwise there would be no Mount Pinatubo. Its last eruption before 1991 was about 600 years ago.
Did mt Pinatubo only erupt once?
No. It erupted several times in 1991 before and after its climactic eruption. Prior to that, though, it had not erupted in recorded history, with its last eruption occurring about 600 years ago.
What would happen if mount Pinatubo erupted again?
This would depend on the type of eruption that Pinatubo were to produce. The only record of eruption of the volcano are of the 1991 event. Although scientists know that the volcano had erupted in an explosive manner before it is unclear what other types of eruptions it can produce. Although unlikely that Pinatubo will erupt in the near future it is a possibility. The eruption is not likely to be as explosive as the 1991 event as the amount of time between eruptions of that magnitude should be longer, given the otherwise unknown history of the volcano. This would suggest that it does not erupt frequently; however, when it erupts it seems to be catastrophic in nature.
What is the synonym for evacuate?
Another synonym for evacuate is escape or lrave
Can you predict when volcano?
scientists are almost able to predict volcano eruptions because of all the signs we get that we can compare to what has happened before other volcanoes erupted...
What do you call molten rock before it has erupted?
What do you call molten rock before it has erupted
How high is the summit of Mount Pinatubo?
The summit of Mount Pinatubo is 2,300 meters high. Before the eruption in 1991, the summit was 1,745 meters high. Mount Pinatubo is located in the Philippines.
What happen before Mount Tambora erupted?
there was a small earthquake before it erupted. about 12 hours before or something.
Did Mount Ararat ever erupted?
Mount Ararat has erupted before, a long time ago, but I don't know when. But it has erupted before, that's for sure!
How do scientists save lives?
First of all you cant block a natural disaster from happening all you can do is prevent damage. This is reality, and what earth scientists do. They find about events before happening. By doing this they can evacuate the people from the area and save their lives. for example if there's an earth scientist who finds out a tsunami is coming to Thailand and lets say and millions of people are on the beach, they can evacuate these people and they just saved them from getting hurt.
What do you call a volcano that has not erupted in a while but just did?
A volcano that has erupted recently is considered active. In the time before it erupted, if it had not previously erupted in historic times, it is considered dormant.
