Environmental Geology Essay

In 2006, seismic researchers burn predict the reparation and direction of temblors by merely 10 to 20 minutes before it happens. Researchers persona ultrasounds to valuate temblors faster. Precise ultrasound images were enter from the fault which is ruptured and the direction the rupture goes (Ameri crumb play of Physics AIP, 2006). In 2008, seismic researchers can now predict earthquakes with practically more preciseness and earlier than other anterior equipments. A researcher from Rice University named Fenglin Nui and few of his colleagues atomic number 18 currently working on some experiments that can detect earthquake in a much earlier time.The method they consumption is detecting P-waves with the use of some super sensitive agent c entirelyed the Seismic Stress Meter. P-waves be the fleet of all the waves associated with earthquakes (Rice University, 2008). 2. (20 pts) What be the lessons knowledgeable from the 2008 Sichuan earthquake in chinaware? What are the lessons learned from the 1985 Mexican earthquake? Discuss. The insalubrious earthquake that hit Sichuan component in China brought lessons that seismic researchers deem helpful in predicting earthquakes. Sichuan region is located in extremely mountainous area that is active and could be attri besidesed to the earthquake hazard that happened.Topographic analysis can now help scientists to assess area that has high risks of having earthquakes (Pennsylvania State University, 2008). The destructive earthquakes in Mexico City made a realization for a civil engineers association. They all realized that their building codes where buildings are designed to be built still are of no level with the earthquake intensities in Mexico. A problem arises when the soft trunk layer of the undercoat was struck by the earthquake. The soft clay layer of grease started to transmit more shanghaiments higher than what engineers nominate pass judgment.The ground shook buildings in Mexico much farseeinger than what is expected (Peterson, 1986). 3. (15 pts) Discuss the 2008/2009 Chaiten volcanic extravasations in Chile. What are the implications of this natural contingency on the local residents? Chaiten volcanic burping was one that local residents never expected to happen. The Chaiten outlet was said to be nonoperational for almost 10,000 years now. But amazingly and unexpectedly, the volcano has shown activity and after a few days it erupted. Many residents were evacuated from near(a)(a) the volcano. About 4000 people within 6 mile radius from southern region of Chile were evacuated.The town near the volcano was almost buried in ashes fitting like what happened to Pompeii when Mount Vesuvius erupted. The sudden eruption after a long cat sleep gave residents fear of the volcano erupting again at any given time (University of Colorado, 2008). 4. (15 pts) apologize two different amount of moneys that can be taken to keep open, or at least(prenominal) minimize, t he occurrence of shoot downslides. One of the most efficient measures that can be taken to celebrate occurrences of landslides is through afforestation. Trees can greatly add together to minimizing numbers of landslides in many ways.Trees can help absorb weewee from the soil. water system is said to be one of the main cause of landslides. Another is that trees can seduce the soil firmly in the ground also minimizing the landslide occurrences. Another measure that can be used to prevent landslides is by creating levees or dykes. In this method, landslides are prevented by building walls usually near rivers which regulates water levels that cause the landslides (Peoples periodic Online, 2000). 5. (10 pts) What is the mechanical paradox implied by long runout landslides? Heavy rain is said to open started landslides.So, one might think that landslides move and accelerate together with water. The long runout landslides are really caused by heavy rains but there is really no wat er associated with the movement and quickening of landslides. The movement and acceleration of landslides are associated with the pressure vibrations called the acoustic fluidization. As the land slides pressure vibrations were generated making a frictionless effect to the ground which causes the land mass to move like a fluid (Collins and Melosh, 2007).ReferencesAmerican Institute of Physics. (2006, April 1) real-time Quake DetectionSeismologists Use Ultrasounds to tax Quakes Faster. ScienceDaily. Retrieved litigate 27, 2009 from http//www. sciencedaily. com/videos/2006/0406-realtime_quake_detection. htm Collins, G. and Melosh, H. (2007, July 15). Acoustic Fluidization and the Extraordinary Mobility of Sturzstroms. Retrieved March 27, 2009 from http//amcg. ese. ic. ac. uk/gareth/publications/abstracts/lpsc03b. pdf Pennsylvania State University. (2008, July 24). Chinese earthquake Provides Lessons For Future. ScienceDaily. Retrieved March 27, 2009, from http//www. sciencedaily. com