volcano types Flashcards
1
Q
describe an active state volcano
A
a volcano that has erupted recently and is likely to erupt again (e.g. mt Etna in Italy
2
Q
describe a dormant state volcano
A
a volcano that has erupted in the past 10,000 years but not recently. however, it has the capacity to erupt again (e.g. mt Kilimanjaro)
3
Q
decribe an extinct volcano
A
a volcano that is very unlikely to ever erupt again and who’s volcanic activity is finished (e.g. Ben Nevis)
4
Q
how many active volcanos are there in the world?
A
1500
5
Q
what percentage of volcanoes are found in the ‘ring of fire’?
A
75%
6
Q
what type of volcanoes look like tall steep mountains?
A
stratovolcano
7
Q
what temperature can lava reach?
A
1093 degrees Celsius
8
Q
how fast can pyroclastic flows travel?
A
100 mph
9
Q
how do we classify eruptions?
A
VEI
