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because they were formed under the sea so when they erupt the can form tsunamis
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∙ 14y ago
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Are all volcanoes destructive?
Volcanoes are only destructive to people and property when they erupt. Volcanoes can lie dormant for decades before they erupt. The Hawaiian Islands were all formed from eruptions of volcanoes in the ocean.
What type of volcano does and does not erupt?
Active volcanoes erupt. Dormant volcanoes are quiet - but may erupt again some day. Extinct volcanoes have "closed up shop" for good, and will never erupt again.
Do volcanoes erupt after 10 centuries?
Some do. Most volcanoes will erupt more frequently than that, but some do go 1000 years or more between eruptions.
What are some under water landforms that are under water?
their is volcanoes and underwater islands
How many times can an active volcano erupt?
As many as it wants. Some volcanoes erupt often, some infrequently
How many times does a volcano erupt in a century?
Very varied. Some volcanoes erupt almost continuously, others erupt at periods of some hundreds of years.
When a volcano erupts will they erupt again?
Yes. Many volcanoes erupt more than once during their "lifetime." Some volcanoes are hundreds of thousands, even millions of yeas old and erupt periodically.
Is basalt found under water and by volcanoes?
yes. some types of basalt is found of volcanoes.
Do all volcanos erupt?
no all the volcanoes do not erupt.there are three types of volcanoes extinct,average and active. no because there are dome mountains that do not erupt and they are full of lava and they will erupt in more or less than 300 years.
How many times does volcanoes go off?
It depends on the volcano. Some volcanoes can erupt very often, while others will only erupt once every hundred years.
How long has ocean pollution been around?
As long as there has been an ocean. Some pollution happens without the assistance of mankind. That includes volcanoes that erupt underwater, and oil deposits that leak out of the ground under or near water.
Do all volcanoes erupt all of the time?
No. Many volcanoes are dormant or inactive.
