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| Gas |
Landslide |
Lahar |
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| Lava
flows |
Pyroclastic
flow |
Tephra |
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| Fragments
of volcanic materials of any size that escapes a volcano during an
eruption is called tephra. Tephra forms into clouds that spreads up
during an eruption and spreads over hundreds of miles ata first, but
the clouds of tephra can spread around the entire world. Tephra falls
down and lands on the land below. Some piles of tephra are a hundred
feet thick or more. It can bury an entire city if enough is thrown
out of a volcano during an eruption. |
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