GEOL 1001 : Geology Test 3
Document Summary
Earthquakes : an earthquake is the vibration of earth. Seismology: seismographs are instruments that record seismic waves. Push-pull (compress and expand) motion, changing the volume of the intervening material. Generally, in any solid materials, p waves travel about 1. 7 times faster than s waves: secondary (s) waves: travels slower so it arrives second. Shake motion at right angles to their direction of travel. Travel-time curves: the s-p time interval depends on the distance from the epicenter. 3: accounts for the decrease in wave amplitude with increased distance. Earthquake destruction: amount of structural damage attributable to earthquake vibrations depends on: Can earthquakes be predicted: short-range predictions, currently, no reliable method exists for making short-range earthquake predictions, long-range forecast, give the probability of a certain magnitude earthquake occurring on a time scale of. 4: compressional waves (p waves) are able to propagate through liquids as well as solids, shear waves (s waves) cannot travel through liquids.
