Figure 3-10 illustrates ground motion caused by Rayleigh waves. ...Dallas? 10. 29. An earthquake is the release of the energy has been built up during the stress of increasing deformation of the rocks. Why is the St. Lawrence River Valley subject to earthquakes; why is the most active zone near Charlesvois? These actions are the cause of volcanic earthquakes. Which building will be shaken more violently, with higher-amplitude seismic waves, during an earthquake? If we define the energy difference between a Richter-style magnitude 1 earthquake and a magnitude 2 earthquake as equal to 30 screaming cheerleaders, the energy difference between a magnitude 5 earthquake and a magnitude 8 earthquake is 30x30x30 screaming cheerleaders. We know that Earth has a core because of the way seismic waves are reflected and refracted off of the core-mantle boundary. What causes earthquakes? Formation … ; what rather unique events, Hebgan Lake (landslide) ; Boura peak (range went up, valley went down). 11. Earthquakes occur on faults - strike-slip earthquakes occur on strike-slip faults, normal earthquakes occur on normal faults, and thrust earthquakes occur on thrust or reverse faults. Not surprisingly, the 10 states with the most earthquakes are in the western U.S. Looking at the state-by-state report of earthquakes over magnitude 3.5 from the USGS, Alaska amounts to 57 percent of all earthquakes in the United States. Cascadia Subduction Zone. What are the 3 things you should do if an earthquake happens? 28. 6. ​​Most, if not all, shallow-focus earthquakes in the crust are caused by frictional sliding along faults. Earthquakes can cause the ground to shake violently, creating hazards, such as rockslides, falling objects and collapsed buildings. What was unique about the 1994 Northridge Earthquake? But make no mistake—the Seattle-Tacoma area has the potential to have large and destructive quakes! Name one major earthquake on the eastern side of the Sierra Nevada Mts. How do we know that Earth has a liquid outer core? Multiple Choice Questions for Earthquakes - Chapter 16 Each chapter will include a few questions designed to test your knowledge of material covered in the chapter and in the Internet-based resources. What causes thrust faults; what is a blind trust fault? What is the primary cause of human death and injury during an earthquake? Over how large an area was the New Madrid earthquakes felt; why? Of the three major flavors of earthquake waves (P, S and surface), which one has a particle motion that is parallel to the direction the wave propagates? A seismic body wave is an elastic wave that is able to pass through the solid interior of Earth. ...Chicago? Volcanic earthquakes are triggered by changes in the magmatic system within and beneath the volcano. 16. What is the primary tool that society uses to protect its citizens from death and injury due to earthquakes? The city of Seattle is very susceptible to earthquake-related damage because it ____. What is the name of the major plate-boundary fault in California? What is the cause of earthquakes on the Hawaiian Islands? Wastewater disposal wells typically operate for longer durations and inject much more fluid than is injected during the hydraulic fracturing process, making them more likely to induce earthquakes. What has created the Basin and Range province; what kind of faults occur here? 2001: At 10:54 a.m. on February 28, 2001, a deep earthquake centered near the Nisqually Delta northwest of Olympia startles the entire Puget Sound region and causes more than $1 billion in … Corrisponds to the St. Gervieve fault zone; there was a meteorite impact 350 mil. What is our success rate at forecasting earthquakes on shorter timescales? Why may the next earthquake on the Seattle Fault cause "stunning levels of death and destruction"? 15. On September 19, a magnitude 7.1 earthquake rocked central Mexico, with fatalities estimated in the hundreds—the largest, most serious earthquake of at … Of the three major flavors of earthquake waves (P, S and surface), which one has a particle motion that is perpendicular to the direction the wave propagates? ...Waco? Of the three major flavors of earthquake waves (P, S and surface), which one can travel through the interior of the Earth and propagate through liquid, solid and gas? That magnitude 6.8 quake is the most recent one to cause significant damage and injuries in the Pacific Northwest. An earthquake on the Seattle Fault poses the greatest risk to Seattle because: The Seattle Fault Zone extends east-west through the middle of the city. 80 bridges and 1000 unreinforced masonry buildings and 2m tsunami. A fault is a break in the crust that rocks slide along. Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. 19. ...New York? analyzing the amounts of radioactive carbon in organic material found in sediment layers; trench wall exposure of fault-rupture sizes. The petroleum industry has known for some time hat human activity can produce earthquakes, particularly whe ____. Primary waves (or P waves) are compressional waves that vibrate in the direction of propagation; think of "push" waves. The Mercali intensity at a given location is determined based on the phenomena that people observe during the earthquake at that location: sights, sounds, damage, vibrations in surface water, etc. ; who witnessed this quake? What are the 3 classes of fault-movement timing identified by T.K. What is this process called? Give 3 reasons why the cities of Memphis, St. Louis, and Nashville are particularly in danger from future earthquakes on the Reelfoot Rift. Access the answers to hundreds of Earthquakes questions that are explained in a way that's easy for you to understand. ...Salt Lake City? A Seattle Fault quake could be as large as M7.5,160 but less than M7.0 is more probable. Tens of millions of people in the eastern United States and southeastern Canada felt this earthquake. Earthquakes. This movement created a tsunami in Puget Sound and triggered a large landslide into Lake Washington. Of the three major flavors of earthquake waves (P, S and surface), which one is fastest and so arrives at a distant seismograph first? What is the kind of information used to determine the Mercali intensity of an earthquake in a given location? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Earthquake is the abrupt movement of the crust of the earth. 27. 33. A collection of Javascript utilities to be incorporated into scientific courseware. 1. Glacial Meltwater paired into Mississippi and Ohio River, eroding huge volcanoes of sediment, so the land rebounded upward , reducing stresses that held underlying faults. Name two major earthquakes on the western side of the Wasatch Mts. How do we know that Earth has a core, given that we cannot drill a hole that deep? What is forming the Rio Grande Rift and why is Albuquerque in danger of future earthquakes? Why is the Mercali intensity scale useful? 18. 9. As a Rayleigh wave moves across the earth’s surface, the earth moves up and down like an ocean wave. Briefly name and explain the new view for how faults move. ​on the Earth's surface directly above the place in Earth's interior where the earthquake was generated (known as the hypocenter or focus of the earthquake). Surface waves cause most of the damage during an earthquake. Magma causes rock to liquify and rocks volume expands neighboring brittle rock fractures to make room. If we define the energy difference between a Richter-style magnitude 1 earthquake and a magnitude 2 earthquake as equal to 30 screaming cheerleaders, what is the energy difference between a magnitude 5 earthquake and a magnitude 8 earthquake?

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