ENVR 1104 Chapter Notes -Subduction, Yucatán Peninsula, University Of Manchester

• School: Northeastern University
• Department: Earth & Environmental Sciences
• Course: ENVR 1104
• Professor: Malcolm D Hill

Document Summary

Chapter 5: tsunami: tsunami, a wave with higher peaks and lower troughs, generated by sudden displacements in the sea floor, landslides, or volcanic activity, earthquake generated tsunami: A subduction zone earthquake snaps the leading edge of a continent up and forward: volcano generated tsunami: Volcanic eruptions can also displace water and cause tsunamis. Volcanoes may erupt explosively in a horizontal direction (directed blast), and generate large waves that way. If an inflating volcano oversteepens part of its slope, a major landslide might trigger a tsunami: tsunami triggered by subsea landslides: And subaerial landslides that reach the sea. Seawater is displaced sideways, and a tsunami races away from the landslide"s location: asteroid impact generated tsunami: C = velocity in m/sec so gravity and depth are the two factors that effect velocity: tsunami on shore, run-up = height of the wave when it reaches shore.