| A | B |
| Undulating | move in a wavy or flowing manner |
| Debris | what remains after something is broken or destroyed |
| Devastation | massive our large destruction |
| Fault | a break in a rock mass caused by a shift in the earth’s crust |
| Impact | the striking of two objects together |
| Jolt | a sudden jerk |
| Shuddered | a sudden shaking |
| Upheaval | a lifting or upward movement |
| Collide | two things bumping into each other |
| Jagged | having sharp pointed edges or outline |
| Prairies | flat, open grasslands |
| Rotate | to turn in a circular motion |
| Severe | serious or extreme |
| Sizzling | crackling noise made by heat |
| summit | the top of a mountain |
| extinct | no longer active (or alive) |
| collapsed | fallen inward suddenly |
| caldera | a crater formed by a collapsed volcano |
| cinders | charred bits of rock; ashes |
| crater | a bowl shaped deprssion |
| crust | the solid outer layer of earth |
| eruption | a volcanic explosion |
| lava | hot melted rock |
| magma | hot melted rock under the earth's surface |
| molten | something made liquid by heat |