Volcanic Hazards Flashcards
Know the dangers of volcanoes
1
Q
How fast and how far can pyroclastic flow travel?
A
It can travel up to speeds of 200 km/ph and to 40 km away from the source. It reaches heats of 800*c
2
Q
Ash fall can reach…
A
Across the world and to the stratosphere causing global damage
3
Q
What mixed with rain water causes acid rain?
A
Volcanic gases - silent but deadly
4
Q
Lahars are often triggered by what two things?
A
Thunderstorms and rain fall (that mixes with the ash) and snow capped volcanoes (that melt the ice and snow atop them)
5
Q
What is considered the greatest volcanic threat to people?
A
Pyroclastic flow if people are within a 40 km radius of the volcano
6
Q
How do landslides occur?
A
Rising magma
