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1. Fastest seismic wave
R M R A P Y I
2. Second seismic wave to arrive
D C R Y O N E S A
3. Surface wave moves in elliptical pattern
I E A H G R L Y
4. Dangerous surface wave
E L O V
5. Town where earthquake starts
P I E T C E E R N
6. Underground
S C U O F
7. Smallest volcano
E D C I R N O N E C
8. Dangerous Volcano
O C S T M I E P O
9. Moana Loa
E I D L H S
10. Yellowstone
P A O V E S C N R L O U
11.
A M A G M
12.
A L A V