Lecture 10 – Faults and Earthquakes Causes of Earthquakes
... A thrust (or overthrust) fault is a low-angle reverse fault, again resulting from compressive forces. Thrust faults are very common in highly folded mountain belts (the example is from Glacier National Park). ...
... A thrust (or overthrust) fault is a low-angle reverse fault, again resulting from compressive forces. Thrust faults are very common in highly folded mountain belts (the example is from Glacier National Park). ...
PNW Tectonic Block Model
... Circle the names of the three major tectonic plates labeled on the map. 1. Which two plates are interacting at the Cascadia Subduction zone? The Juan de Fuca and the North American plates 2. Which plate is being subducted? How do you know? Answers will vary (using the key in the upper right hand c ...
... Circle the names of the three major tectonic plates labeled on the map. 1. Which two plates are interacting at the Cascadia Subduction zone? The Juan de Fuca and the North American plates 2. Which plate is being subducted? How do you know? Answers will vary (using the key in the upper right hand c ...
Christchurch Earthquake Assessment by Mike Ryan
... Another way predictions can be made is through the study of measuring land movements in areas that are being deformed using techniques such as Global Positioning System measurements and radar. Through this, determinations can be made on areas that are most likely for seismic activity to occur and i ...
... Another way predictions can be made is through the study of measuring land movements in areas that are being deformed using techniques such as Global Positioning System measurements and radar. Through this, determinations can be made on areas that are most likely for seismic activity to occur and i ...
Topic 12 Student Handout copy
... outer core. A section of the lithosphere that moves around Earth’s surface. A crack in a mass of rock or soil. The boundary between two plates spreading apart. A very fast, large ocean wave produced by an earthquake. The zone of Earth between the mantle and inner core. Thought to be liquid because e ...
... outer core. A section of the lithosphere that moves around Earth’s surface. A crack in a mass of rock or soil. The boundary between two plates spreading apart. A very fast, large ocean wave produced by an earthquake. The zone of Earth between the mantle and inner core. Thought to be liquid because e ...
Earth Systems Student Workbook Unit 4
... causing the more dense ocean plate to sink into the asthenosphere. This region where the ocean plate sinks is called a subduction zone. Deep ocean trenches form adjacent to the zone of subduction. These trenches can range up to thousands of kilometers long and 8 – 10 km deep. Lithosphere is destroye ...
... causing the more dense ocean plate to sink into the asthenosphere. This region where the ocean plate sinks is called a subduction zone. Deep ocean trenches form adjacent to the zone of subduction. These trenches can range up to thousands of kilometers long and 8 – 10 km deep. Lithosphere is destroye ...
Earthquakes and Volcanoes in Prophecy
... Tectonic plates also make up the being stored up for a powerful quake. earth’s surface. The visible surfaces of A worldwide network of seismothese plates are the landmasses known graphs (instruments that detect tremas continents. For most continents, ors) detects about a million small such as Africa ...
... Tectonic plates also make up the being stored up for a powerful quake. earth’s surface. The visible surfaces of A worldwide network of seismothese plates are the landmasses known graphs (instruments that detect tremas continents. For most continents, ors) detects about a million small such as Africa ...
Juniata College Shake, Rattle, and Roll Earthquake Board and
... Earthquakes occur because of a sudden release of stored energy. This energy has built up over long periods of time as a result of tectonic forces within the earth. Most earthquakes take place along faults in the upper 25 miles of the earth's surface when one side rapidly moves relative to the other ...
... Earthquakes occur because of a sudden release of stored energy. This energy has built up over long periods of time as a result of tectonic forces within the earth. Most earthquakes take place along faults in the upper 25 miles of the earth's surface when one side rapidly moves relative to the other ...
Plate boundaries: What landforms happen where?
... new crust to be formed. Small volcanoes can also be formed. As the 2 plates meet, the ocean plate sinks under the continental plate because it is denser. The oceanic plate melts, and composite volcanoes are formed along the margin. Earthquakes can also occur here because the 2 plates are clashing. A ...
... new crust to be formed. Small volcanoes can also be formed. As the 2 plates meet, the ocean plate sinks under the continental plate because it is denser. The oceanic plate melts, and composite volcanoes are formed along the margin. Earthquakes can also occur here because the 2 plates are clashing. A ...
Plate boundaries: What landforms happen where?
... new crust to be formed. Small volcanoes can also be formed. As the 2 plates meet, the ocean plate sinks under the continental plate because it is denser. The oceanic plate melts, and composite volcanoes are formed along the margin. Earthquakes can also occur here because the 2 plates are clashing. A ...
... new crust to be formed. Small volcanoes can also be formed. As the 2 plates meet, the ocean plate sinks under the continental plate because it is denser. The oceanic plate melts, and composite volcanoes are formed along the margin. Earthquakes can also occur here because the 2 plates are clashing. A ...
Earthquake risk - EdCommunity
... risk or low risk for an earthquake or a volcanic crust is composed of several tectonic plates eruption. Name five high-risk cities and five that are always on the move. The effects low-risk cities. Remember to turn layers on of movement are most noticeable at the and off and move them around as need ...
... risk or low risk for an earthquake or a volcanic crust is composed of several tectonic plates eruption. Name five high-risk cities and five that are always on the move. The effects low-risk cities. Remember to turn layers on of movement are most noticeable at the and off and move them around as need ...
Earthquakes
... Reverse Fault • Reverse faults result from compression forces that squeeze rock. • If rock breaks from forces pushing from opposite directions, rock above a reverse fault surface is forced up and over the rock below the fault surface. ...
... Reverse Fault • Reverse faults result from compression forces that squeeze rock. • If rock breaks from forces pushing from opposite directions, rock above a reverse fault surface is forced up and over the rock below the fault surface. ...
Chapter 2, Section 10
... side of the fault, the same as with the styrene foam strip. The region of bending can extend for very long distances away from the fault. All rocks have shear strength. The shear strength of a rock is the force that is needed to break the rock when it is acted upon by forces in two opposite directio ...
... side of the fault, the same as with the styrene foam strip. The region of bending can extend for very long distances away from the fault. All rocks have shear strength. The shear strength of a rock is the force that is needed to break the rock when it is acted upon by forces in two opposite directio ...
The 2009 Samoa Earthquake and Tsunami
... Australian plate at the Tonga trench. On September 29, 2009 the Pacific plate moved westward which is caused by the Australian plate at a velocity of 86 mm/yr which is a long term average, not during earthquake. The most active earthquake areas in the world are Australian/Pacific plate boundary (Fig ...
... Australian plate at the Tonga trench. On September 29, 2009 the Pacific plate moved westward which is caused by the Australian plate at a velocity of 86 mm/yr which is a long term average, not during earthquake. The most active earthquake areas in the world are Australian/Pacific plate boundary (Fig ...
Lec3 - nptel
... divided into six continental sized plates (African, American, Antarctic, AustraliaIndia, Eurasian, and Pacific) and about 14 of subcontinental size (e.g., Caribbean, Cocos, Nazca, Philippine, etc). The major plates are shown in (figure 1.18). Smaller platelets, or microplates, have broken off from t ...
... divided into six continental sized plates (African, American, Antarctic, AustraliaIndia, Eurasian, and Pacific) and about 14 of subcontinental size (e.g., Caribbean, Cocos, Nazca, Philippine, etc). The major plates are shown in (figure 1.18). Smaller platelets, or microplates, have broken off from t ...
Situation
... with peculiarities of deep structure of the region; - data about character and intensity of horizontal movements of the Earth’s crust near Trancarpathian deep fault were obtained; - characters and intensity of crust’s vertical movements were investigated - on the base of permanent tension-metering i ...
... with peculiarities of deep structure of the region; - data about character and intensity of horizontal movements of the Earth’s crust near Trancarpathian deep fault were obtained; - characters and intensity of crust’s vertical movements were investigated - on the base of permanent tension-metering i ...
File - Mrs. DiLorenzo Earth Science
... of Castle Rock High School was killed by falling bricks. The gable on the school collapsed, even though the structure was more than 50 miles (80 kilometers) from the epicenter. ...
... of Castle Rock High School was killed by falling bricks. The gable on the school collapsed, even though the structure was more than 50 miles (80 kilometers) from the epicenter. ...
Davidson College Presbyterian Church Davidson, North Carolina
... But I have a hunch that he told the story the way that he did because his readers in the first century were a great deal like his readers…like us…in the 21st century. They, like we, devoted a great deal of thought, a great deal of energy, toward feeling safe….protecting what we have, insuring ourse ...
... But I have a hunch that he told the story the way that he did because his readers in the first century were a great deal like his readers…like us…in the 21st century. They, like we, devoted a great deal of thought, a great deal of energy, toward feeling safe….protecting what we have, insuring ourse ...
Plate Tectonics - NagelBeelmanScience
... underneath the westward moving North American plate. Seduction is when an oceanic plate is forced down into the mantle by a thicker but less dense continental-land-plate. Convergent boundaries can cause many hazards to our environment Some of these hazards are earthquakes, volcanoes and crustal defo ...
... underneath the westward moving North American plate. Seduction is when an oceanic plate is forced down into the mantle by a thicker but less dense continental-land-plate. Convergent boundaries can cause many hazards to our environment Some of these hazards are earthquakes, volcanoes and crustal defo ...
Word
... 4. i) Draw a hypothetical s versus n graph in which you show the line that separates the stable from unstable fields (i.e., the frictional failure line defined by the Coulomb failure criterion). Label each field. The axes must be drawn at the same scale as each other. Each axis should range in val ...
... 4. i) Draw a hypothetical s versus n graph in which you show the line that separates the stable from unstable fields (i.e., the frictional failure line defined by the Coulomb failure criterion). Label each field. The axes must be drawn at the same scale as each other. Each axis should range in val ...
Chapter 12.2 - Features of Plate Tectonics
... Usually are found near ocean ridges. Since rock slides past rock, no mountains or volcanoes form. Earthquakes and faults are very common, though. ...
... Usually are found near ocean ridges. Since rock slides past rock, no mountains or volcanoes form. Earthquakes and faults are very common, though. ...
Questions - Geography is easy
... (c) Study Photograph F in the Resource Booklet. It shows an area that has been affected by volcanic eruption in an low-income country (LIC). ...
... (c) Study Photograph F in the Resource Booklet. It shows an area that has been affected by volcanic eruption in an low-income country (LIC). ...
Earthquakes
... 2011 Tōhoku earthquake, was the most powerful ever to strike Japan and one of the top five known in the world. Damage from the earthquake was nearly overshadowed by the tsunami it generated, which wiped out coastal cities and towns. Two months after the earthquake, about 25,000 people were dead or m ...
... 2011 Tōhoku earthquake, was the most powerful ever to strike Japan and one of the top five known in the world. Damage from the earthquake was nearly overshadowed by the tsunami it generated, which wiped out coastal cities and towns. Two months after the earthquake, about 25,000 people were dead or m ...
oceanic crust - Duluth High School
... • Move at about the rate a fingernail grows • Mountains, earthquakes and volcanoes occur at plate boundaries • Divergent- ridges in ocean/rifts on land • Convergent- subduction/trenches in oceans and mountains (orogonic belt) on land • Transform fault- 2 plates slide past one another (San Andreas Fa ...
... • Move at about the rate a fingernail grows • Mountains, earthquakes and volcanoes occur at plate boundaries • Divergent- ridges in ocean/rifts on land • Convergent- subduction/trenches in oceans and mountains (orogonic belt) on land • Transform fault- 2 plates slide past one another (San Andreas Fa ...
Exercise II - Earthquakes, volcanoes and tectonics
... A) On the attached table, record the date, location (in latitude and longitude), magnitude, and depth of 10 recent (past week) earthquakes from various locations around the globe (3pts); B) Plot and label the locations of these earthquakes on the plate boundary map (3pts); C) Determine the plate tec ...
... A) On the attached table, record the date, location (in latitude and longitude), magnitude, and depth of 10 recent (past week) earthquakes from various locations around the globe (3pts); B) Plot and label the locations of these earthquakes on the plate boundary map (3pts); C) Determine the plate tec ...
Earthquake
An earthquake (also known as a quake, tremor or temblor) is the perceptible shaking of the surface of the Earth, which can be violent enough to destroy major buildings and kill thousands of people. The severity of the shaking can range from barely felt to violent enough to toss people around. Earthquakes have destroyed whole cities. They result from the sudden release of energy in the Earth's crust that creates seismic waves. The seismicity, seismism or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time.Earthquakes are measured using observations from seismometers. The moment magnitude is the most common scale on which earthquakes larger than approximately 5 are reported for the entire globe. The more numerous earthquakes smaller than magnitude 5 reported by national seismological observatories are measured mostly on the local magnitude scale, also referred to as the Richter magnitude scale. These two scales are numerically similar over their range of validity. Magnitude 3 or lower earthquakes are mostly almost imperceptible or weak and magnitude 7 and over potentially cause serious damage over larger areas, depending on their depth. The largest earthquakes in historic times have been of magnitude slightly over 9, although there is no limit to the possible magnitude. The most recent large earthquake of magnitude 9.0 or larger was a 9.0 magnitude earthquake in Japan in 2011 (as of March 2014), and it was the largest Japanese earthquake since records began. Intensity of shaking is measured on the modified Mercalli scale. The shallower an earthquake, the more damage to structures it causes, all else being equal.At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes can also trigger landslides, and occasionally volcanic activity.In its most general sense, the word earthquake is used to describe any seismic event — whether natural or caused by humans — that generates seismic waves. Earthquakes are caused mostly by rupture of geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests. An earthquake's point of initial rupture is called its focus or hypocenter. The epicenter is the point at ground level directly above the hypocenter.