| Maunaloa | | Measures seismic waves |
| Tsunami | | Teeny, tiny volcanic ash |
| Shieldvolcano | | A composite volcano |
| Focus | | Strength of earthquakes |
| Compositevolcano | | Volcanic bombs the size of golf balls |
| Ringoffire | | Volcanoes made mostly from cinders |
| Volcanicbombs | | Don't travel through liquid |
| Volcanicash | | Large particles blown from volcanoes |
| Seismicwaves | | Surface waves |
| Seismologist | | Pacific earthquake and fire zone |
| Mount Egmont | | Earthquake's point of origin |
| Epicenter | | The pit at the top of a volcanic cone |
| Seismograph | | A volcanic crater whose walls have colapsed |
| Cinders | | Magma that reaches the Earth's surface |
| Magma | | Giant Sea Waves |
| Lwaves | | Directly above the focus |
| Vent | | Opening from which lava erupts |
| Caldera | | Fastest seismic waves |
| Swaves | | Hot liquid rock |
| Pwaves | | Small particles blown into the air |
| Volcanicdust | | Studies earthquakes |
| Lava | | Composed of quiet lava flows |
| Cindercones | | A shield volcano |
| Richterscale | | Built up of alternating layers |
| Crater | | Earthquake waves |