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| The time between seismic waves or the time between the peaks recorded on a seismograph. |
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| The height to which water at the leading edge of a wave rushes up onto shore. Also used for the height to which a tsunami wave rushes up onshore. |
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| Subsea level collapse of the flank of an oceanic volcano such as in Hawaii or the Canary Islands. |
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| An abnormally long wavelength wave most commonly produced by sudden displacement of water in response to sudden fault movement on the seafloor. Can also form when a landslide, volcanic eruption, or asteroid impact displaces water. |
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| The line along a mountainside along which tall trees in the forest upslope are bounded by distinctly shorter trees downslope. |
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| When a significant tsunami is identified, officials order evacuation of endangered low-lying coastal areas. |
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| The alert is issued when a magnitude 7 or larger earthquake is detected somewhere around the Pacific Ocean or some other ocean that may see dangerous tsunamis. |
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| The distance from crest to crest of a wave- for example, in an earthquake wave or a water wave. |
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| How Earthquakes, Volcanism, Landslides and Asteroids generate tsunami. |
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| How does a tsunami move, both at sea and near coastlines? |
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| How society deals with this kind of hazard. |
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| Understand what happened at Lituya Bay, Alaska. |
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| Understand the tsunami generated by the largest earthquake in the subduction zone off of Chile, South America and the destruction it caused around the Pacific Ocean Coastlines. |
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| Understand the mechanisms behind the 2004 Indian Ocean Tsunami. (The movie will help with this) |
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