what causes earthquakes in seattle quizlet

Earthquake Causes and Characteristics Page 3-11 Rayleigh waves. What causes most fires that damage urban areas after an earthquake? 8. Magma causes rock to liquify and rocks volume expands neighboring brittle rock fractures to make room. 12. The most recent Seattle Fault earthquake was about 1,100 years ago; ...Chicago? 13. 31. ground pulled apart, sediment fell in valley. Earthquake is the abrupt movement of the crust of the earth. P waves are the fastest seismic waves, and so arrive at a distant seismograph first. How was the Reelfoot Rift formed 550 million years ago? The deepest earthquakes ever recorded are as deep as ~700 km. The two main causes of the earthquakes are the Tectonic activity linked with the plate margins and the faults in these plates. Name two major earthquakes on the western side of the Wasatch Mts. A study published in the journal Seismological Research Letters this week identified 730 sites where human activity caused earthquakes over the past 150 years. 21. 16. Rockwell? Start studying What Causes Earthquakes?. ...Memphis? Learn vocabulary, terms, and more with flashcards, games, and other study tools. A collection of Javascript utilities to be incorporated into scientific courseware. We know that Earth has a liquid outer core because S waves do not pass through it. One analysis estimates a magnitude 6.7 quake on the Seattle fault today could cause $33 billion in damage and kill as many as 1,600 people. A magnitude 5.8 earthquake in 2011 in Mineral, Virginia, was felt up to 600 miles from the epicenter. Now let’s visit the 3 most dangerous earthquake faults for Seattle one by one: 1. What is forming the Rio Grande Rift and why is Albuquerque in danger of future earthquakes? Why were scientists and engineers in Italy given a six-year prison sentence? What does the time difference between the first arrival of P and S waves tell us about an earthquake? The Cascadia Subduction Zone is a giant fault running from Cape Mendocino, Calif. past Oregon and Washington and doesn’t end until it’s north of Vancouver Island in Canada. 28. Imagine two buildings of similar construction: a green building with a foundation built on hard bedrock and a blue building with a foundation built on soft sandy deposits. If you have two chunks of the mantle, both of which are the same composition and are under the same pressure (because they are at the same depth) but chunk A is hotter than chunk B, how will their densities compare with one another? Corrisponds to the St. Gervieve fault zone; there was a meteorite impact 350 mil. 4. Is there a significant chance of an earthquake occurring in the next 500 years that would cause major damage in Los Angeles? 11. 15. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Seismic waves are said to be either body waves or surface waves. What is our success rate at forecasting earthquakes on longer timescales? If a magnitude 9.0 earthquake were to hit the Pacific Northwest, People in Seattle would fare much better if the epicenter struck beneath the tip of … What is sea level spreading. Other faults thought capable of producing magnitude ~7 earthquakes include the San Jacinto, Whittier-Elsinore, Newport-Inglewood, Palos Verdes, Malibu Coast, Hollywood, Sierra Madre, Cucamonga, and maybe the Puente Hills faults. 1. landslides carrying trees upright to the bottom of Lake Washington. It begins naturally under the surface. The Puget Sound Region is crisscrossed by fault lines and zones and also located close to the Cascadia Subduction Zone, where the Juan de Fuca and North American tectonic plates meet. What is a body wave? What feature of Earth's interior are deep-focus earthquakes associated with? 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? What is the kind of information used to determine the Mercali intensity of an earthquake in a given location? Give 3 reasons why the cities of Memphis, St. Louis, and Nashville are particularly in danger from future earthquakes on the Reelfoot Rift. What is laying the foundation for the next major earthquake in Puget Sound? Of the three major flavors of earthquake waves (P, S and surface), which one causes the most damage to buildings? 3. 5. A. What was unique about the 1994 Northridge Earthquake? Most fires that damage urban areas after an earthquake are caused by spilled fuel used for heating/cooking and ruptured natural gas lines. charged for the felony of manslaughter for reassuring the public. Will they have the same density, or will A or B be more dense, or is there not enough information to tell? 1. 3. The San Andreas fault is not the only fault capable of producing large earthquakes in southern California. Formation … Surface waves cause most of the damage during an earthquake. What event 480 million years ago laid the foundation for the 2011 Virginia Earthquake? How does elastic rebound theory explain the behavior of faults and the energy released during an earthquake? Tens of millions of people in the eastern United States and southeastern Canada felt this earthquake. Most earthquakes occur along or near plate boundaries. ...Seattle? 4. It takes three geographically separate seismographs to locate an earthquake epicenter by triangulation. Do all states in the U.S. have earthquakes? This movement created a tsunami in Puget Sound and triggered a large landslide into Lake Washington. 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? ; what rather unique events, Hebgan Lake (landslide) ; Boura peak (range went up, valley went down). How do we know that Earth has a core, given that we cannot drill a hole that deep? The main cause of the earthquake is volcanic eruptions. 18. 22. That's more than 12,000 earthquakes in 30 years! Earthquakes can cause the ground to shake violently, creating hazards, such as rockslides, falling objects and collapsed buildings. The land moved like waves throwing things into the air, waves bursted, fissures farmed and some immediatly. ​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). 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 … A fault is a break in the crust that rocks slide along. pulled a triangle of crust away from the fault, reducing the pressure that had it together. The rocks are folded. What are 3 of the 5 evidences for a major earthquake on the Seattle Fault some 1,100 years ago? 2. But make no mistake—the Seattle-Tacoma area has the potential to have large and destructive quakes! P waves can travel through the interior of Earth, through liquid, solid and gas. analyzing the amounts of radioactive carbon in organic material found in sediment layers; trench wall exposure of fault-rupture sizes. Such type of earthquakes occurs in areas, with frequent volcanic activities. Start studying What causes earthquakes. Continental crusts heating and stretching; thinning and extending. 20. What change in the Earth's surface causes a tsunami? What unique events accompanied the New Madrid earthquakes? when plate boundaries break along a fault; as a result, seismic waves (energy released) make the ground shake. Volcanic earthquakes are triggered by changes in the magmatic system within and beneath the volcano. Particle motion in a P wave is parallel to the direction in which the wave propagates, because a P wave is a compressional wave. Glacial Meltwater paired into Mississippi and Ohio River, eroding huge volcanoes of sediment, so the land rebounded upward , reducing stresses that held underlying faults. Why is the St. Lawrence River Valley subject to earthquakes; why is the most active zone near Charlesvois? An earthquake is the release of the energy has been built up during the stress of increasing deformation of the rocks. Access the answers to hundreds of Earthquakes questions that are explained in a way that's easy for you to understand. This earthquake caused parts of Restoration Point near on Bainbridge Island to be lifted 35 feet straight up. ; who witnessed this quake? What has created the Basin and Range province; what kind of faults occur here? Where are earthquakes most common. What laid the foundation for the 1994 Northridge Earthquake? When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the … We know that the density of the mantle increases with depth because of the time it takes for a P wave to travel through the mantle from an earthquake to a distant seismograph. Earthquakes. When boiling lava tries to break through the surface of the earth, with the increased pressure of gases, certain movements caused in the earth’s crust. because it helps us map the areas that are most seriously affected by earthquakes. There are two types of vibrations produced by earthquakes 1. ​Tsunamis get to be such tall, broad waves when they reach the shoreline because the entire water column, from the bottom of the ocean to the top, is in motion away from the place where the tsunami was generated, and this huge mass of water builds great waves as the seafloor shallows near the coastline. How do we know that Earth has a liquid outer core? The primary cause of human death and injury during an earthquake is building collapse. "The absolute answer is 'yes,' fracking does cause earthquakes. Name one major earthquake on the eastern side of the Sierra Nevada Mts. What causes earthquakes? Over how large an area was the New Madrid earthquakes felt; why? An earthquake is caused by a sudden slip on a fault. Body waves travel through the Earth's interior a. sits atop a deep basin filled with soft sediments. Stories from tribes near Seattle have also helped us to learn that the last earthquake on the Seattle fault was about AD 900–950. The amplitude of the seismic signal recorded by a seismograph gives us information about the magnitude of the earthquake, once the distance to the epicenter is known. convection cells push the plates and they push back and get stuck and the pressure builds and it breaks releasing the tension Why dont people want to try to create smaller earthquakes to prevent bigger earthquakes? 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