EARTH 119 Chapter Notes - Chapter 10: Seismometer, Earthquake Warning System, Seismic Wave
16 Oct 2016
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Earth 119- chapter 10: a violent pulse: earthquake. Fault: a fracture on which one body of rock slides past another. Earthquake: a vibration caused by the sudden breaking or frictional sliding of rock in the. Focus (hypocenter): the location where a fault slips during an earthquake. Epicenter: the point on the surface of the earth directly above the focus of an earthquake. Displacement (offset): the amount of movement or slip across a fault plane. Fault scarp: a small set on the ground surface where one side of a fault has moved vertically with respect to the other. Stress: the push, pull, or shear that a material feels when subjected to a force; formally, the force applied per unit area over which the force acts. Friction: resistance to sliding on a surface. Strike-slip fault: a fault in which one block slides horizontally past another (and therefore parallel to the strike line), so there is no relative vertical motion.
