Module 2: Exposure and Vulnerability

• earthquake- sudden ground shake
• fault line is a long crack in the surface
• normal fault a dipdip fault in which the fault has moved downward
• reverse fault the block above the fault moves up
• strike slip fault dominated by literal
• ground shaking caused by the passage of seismic waves
• epicenter the area of the surface of the earth where the origin of the earthquake is
• ground rupture this occurs when ground movement happens on a fault line and breaks through the surface
• liquefaction this occurs when seismic shaking cause loose materials in the soil to mix with the groundwater soil
• earthquake induced ground subsidence - the lowering of the land due to various causes
• landslide happen during or after earthquake when weakend section of the falls
• seismograph records strength of terror or shaking captured by seismometer