 | Term | Definition |
| |
earthquake |
shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity |
| |
focus |
point inside the Earth where an earthquake begins |
| |
epicenter |
location on the Earth's surface directly above the focus where the crust breaks during an earthquake |
| |
tsunami |
a huge destructive wave (especially one caused by an earthquake) |
| |
fault |
a break in the Earth's crust along which blocks of the crust slide relative to one another; due to tectonic forces |
