Name: 1) What data do scientists use to determine the magnitude of
... 4981 - 1 - Page 5 Questions 11 through 15 refer to the following: The map below shows modified Mercalli intensity scale damage zones resulting from a large earthquake that occurred in 1964. The earthquake's epicenter was near Anchorage, Alaska. The cities Kodiak and Anchorage are shown on the map. ...
... 4981 - 1 - Page 5 Questions 11 through 15 refer to the following: The map below shows modified Mercalli intensity scale damage zones resulting from a large earthquake that occurred in 1964. The earthquake's epicenter was near Anchorage, Alaska. The cities Kodiak and Anchorage are shown on the map. ...
Name: 1) What data do scientists use to determine the magnitude of
... 4981 - 1 - Page 5 Questions 11 through 15 refer to the following: The map below shows modified Mercalli intensity scale damage zones resulting from a large earthquake that occurred in 1964. The earthquake's epicenter was near Anchorage, Alaska. The cities Kodiak and Anchorage are shown on the map. ...
... 4981 - 1 - Page 5 Questions 11 through 15 refer to the following: The map below shows modified Mercalli intensity scale damage zones resulting from a large earthquake that occurred in 1964. The earthquake's epicenter was near Anchorage, Alaska. The cities Kodiak and Anchorage are shown on the map. ...
CHAPTER 3
... - We know that the outer core behaves like a liquid because S-waves will not pass through it. - Whenever a wave passes from one material into another its velocity will change and its path will bend. The bending of the path is called refraction. - Careful measurements of travel times of seismic waves ...
... - We know that the outer core behaves like a liquid because S-waves will not pass through it. - Whenever a wave passes from one material into another its velocity will change and its path will bend. The bending of the path is called refraction. - Careful measurements of travel times of seismic waves ...
Crust
... Earth is made of? • Geophysical surveys: seismic, gravity, magnetic, electrical, geodesy – Acquisition: land, air, sea and satellite – Geological surveys: fieldwork, boreholes, mines ...
... Earth is made of? • Geophysical surveys: seismic, gravity, magnetic, electrical, geodesy – Acquisition: land, air, sea and satellite – Geological surveys: fieldwork, boreholes, mines ...
Worldwide distribution of ages of the continental lithosphere derived
... A relationship between surface heat flow and age at a global scale was proposed by Polyak and Smirnov (1968) and by Pollack and Chapman (1977). Assuming a linear relationship between surface heat flow and radiogenic heat production in the crust, Chapman and Pollack (1977) derived a simple model accord ...
... A relationship between surface heat flow and age at a global scale was proposed by Polyak and Smirnov (1968) and by Pollack and Chapman (1977). Assuming a linear relationship between surface heat flow and radiogenic heat production in the crust, Chapman and Pollack (1977) derived a simple model accord ...
Earthbyte Honours Projects
... by the idea that the concentration of atmospheric CO2 is instead the dominant control. This project aims to constrain the role of tectonics on ocean circulation and global climate, particularly to differentiate between the two competing ideas and assess their relative importance. This will have majo ...
... by the idea that the concentration of atmospheric CO2 is instead the dominant control. This project aims to constrain the role of tectonics on ocean circulation and global climate, particularly to differentiate between the two competing ideas and assess their relative importance. This will have majo ...
surface wave - Madison Local Schools
... Seismic Waves and Earth’s Interior • By studying the speed and direction of seismic waves, scientists can learn more about the makeup and structure of Earth’s interior. Earth’s Internal Layers • In 1909, Andrija Mohorovičić discovered that the speed of seismic waves increases abruptly at about 30 km ...
... Seismic Waves and Earth’s Interior • By studying the speed and direction of seismic waves, scientists can learn more about the makeup and structure of Earth’s interior. Earth’s Internal Layers • In 1909, Andrija Mohorovičić discovered that the speed of seismic waves increases abruptly at about 30 km ...
Earthquakes
... • Scientists use seismograms to find the earthquakes epicenter. • One method they use is called the S-P Time Method. • They collect readings for the same earthquake from seismographs stations at different locations. • They then use this data to determine the distance each station is from the earthqu ...
... • Scientists use seismograms to find the earthquakes epicenter. • One method they use is called the S-P Time Method. • They collect readings for the same earthquake from seismographs stations at different locations. • They then use this data to determine the distance each station is from the earthqu ...
An____________is a movement of Earth’s lithosphere shift, releasing stored energy.
... A device that can detect and record seismic waves is called a _______________________. To measure earthquakes and pinpoint their epicenters, geologists record seismic waves using seismographs. The record of an earthquake on a seismograph is called a _________________. • Earthquakes can be located us ...
... A device that can detect and record seismic waves is called a _______________________. To measure earthquakes and pinpoint their epicenters, geologists record seismic waves using seismographs. The record of an earthquake on a seismograph is called a _________________. • Earthquakes can be located us ...
The Electroseismic Survey Method
... example sandstone, can vary widely from site to site, unless these velocities are measured, then an estimate has to be used. If a local well is available where a ...
... example sandstone, can vary widely from site to site, unless these velocities are measured, then an estimate has to be used. If a local well is available where a ...
A state-of-the-art multi-component seismic survey
... 4. Geophysical surveys and studies The seismic data from Siilinjärvi is being processed using more advanced processing methods. At the same time we are inverting for velocity models along the four profiles to extract as much as possible information from the data that can be used to better understand ...
... 4. Geophysical surveys and studies The seismic data from Siilinjärvi is being processed using more advanced processing methods. At the same time we are inverting for velocity models along the four profiles to extract as much as possible information from the data that can be used to better understand ...
Chapter 18
... • A seismic wave is a vibration that moves through any part of the earth. They can be used by geologists to learn about the earth’s interior. • Seismic waves radiate outward from an earthquake, spreading in all directions through the solid earth’s interior like sound waves from an explosion. ...
... • A seismic wave is a vibration that moves through any part of the earth. They can be used by geologists to learn about the earth’s interior. • Seismic waves radiate outward from an earthquake, spreading in all directions through the solid earth’s interior like sound waves from an explosion. ...
34722 Pt 2 Plate Tectonics
... • Recognize the four types of plate boundaries—divergent boundaries, convergent boundaries, transform boundaries, and collisional boundaries—and describe the characteristics of each. • Describe the three types of earthquake waves—P (push or primary) waves; S (shear or secondary) waves; and L, or sur ...
... • Recognize the four types of plate boundaries—divergent boundaries, convergent boundaries, transform boundaries, and collisional boundaries—and describe the characteristics of each. • Describe the three types of earthquake waves—P (push or primary) waves; S (shear or secondary) waves; and L, or sur ...
Types of Faults
... on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. ...
... on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. ...
CEA - Earthquakes
... the Earth and has highlighted their movements. There are seven major plates which are colliding, diverging or sliding past each other. Each year the continents move several centimeters with respect to one another. This process, known as "continental drift", was finally explained by plate tectonics. ...
... the Earth and has highlighted their movements. There are seven major plates which are colliding, diverging or sliding past each other. Each year the continents move several centimeters with respect to one another. This process, known as "continental drift", was finally explained by plate tectonics. ...
Experiments With Portable Ocean Bottom - OBSIP
... locate these events. The Cascadia experiment beginning in 2011 will use an amphibious array of onshore and offshore seismographs to investigate the structure and seismic activity in this megathrust zone that has been the site of great (Mw ≥ 9) earthquakes in the past and which poses perhaps the grea ...
... locate these events. The Cascadia experiment beginning in 2011 will use an amphibious array of onshore and offshore seismographs to investigate the structure and seismic activity in this megathrust zone that has been the site of great (Mw ≥ 9) earthquakes in the past and which poses perhaps the grea ...
Earthquake
... Why are there different types of faults? • Normal Faults: from stretching of or extending rock; points on opposite sides of a fault are father apart after an earthquake • Reverse Faults: from contraction or squishing rock; points on opposite sides of the fault are closer together after an earthquak ...
... Why are there different types of faults? • Normal Faults: from stretching of or extending rock; points on opposite sides of a fault are father apart after an earthquake • Reverse Faults: from contraction or squishing rock; points on opposite sides of the fault are closer together after an earthquak ...
Inge Lehmann: Discoverer of the Earth`s Inner Core
... The temperatures are too hot, pressures too extreme, and distances too vast to be explored by conventional probes. So scientists rely on seismic waves—shock waves generated by earthquakes and explosions that travel through Earth and across its surface—to reveal the structure of the interior of the p ...
... The temperatures are too hot, pressures too extreme, and distances too vast to be explored by conventional probes. So scientists rely on seismic waves—shock waves generated by earthquakes and explosions that travel through Earth and across its surface—to reveal the structure of the interior of the p ...
When the Earth Moves: Seafloor Spreading and Plate Tectonics
... divided into huge plates whose slow movements carry the continents on a slow drift around the globe. Where the plates come in contact with one another, they may cause catastrophic events, such as volcanic eruptions and earthquakes, which in turn can trigger the destructive ocean waves known as tsuna ...
... divided into huge plates whose slow movements carry the continents on a slow drift around the globe. Where the plates come in contact with one another, they may cause catastrophic events, such as volcanic eruptions and earthquakes, which in turn can trigger the destructive ocean waves known as tsuna ...
Earthquakes!!!!!
... on the moment of the earthquake, which is equal to the rigidity of the Earth multiplied by the average amount of slip on the fault and the size of the area that slipped. ...
... on the moment of the earthquake, which is equal to the rigidity of the Earth multiplied by the average amount of slip on the fault and the size of the area that slipped. ...
Play-Doh Plates
... 5. Using the two Play-Doh plate models, carefully construct a new model of the resulting convergent plate boundary. Construct any seafloor or continental features generated by the type of convergence illustrated by the model. 6. Draw a map of your two-plate convergent boundary model. Label the surfa ...
... 5. Using the two Play-Doh plate models, carefully construct a new model of the resulting convergent plate boundary. Construct any seafloor or continental features generated by the type of convergence illustrated by the model. 6. Draw a map of your two-plate convergent boundary model. Label the surfa ...
Continents Adrift: An Introduction to Continental Drift
... Why does the shape of the earth’s oceans and continents continue to change? What is happening to the Atlantic Ocean? The Pacific? What continent will eventually connect with Europe? Why will the Himalayas increase in height? In what direction is the west coast of the United States (specifically Cali ...
... Why does the shape of the earth’s oceans and continents continue to change? What is happening to the Atlantic Ocean? The Pacific? What continent will eventually connect with Europe? Why will the Himalayas increase in height? In what direction is the west coast of the United States (specifically Cali ...
The Dynamic Planet Revealed - Frankfurt Institute for Advanced
... Earth since its formation. With the increasingly accurate Global Polarity Timescale (GPTS) it has become apparent that the rate at which reversals occur has varied considerably throughout the past. During some periods of geologic time (e.g. Cretaceous Long Normal), the Earth's magnetic field is obse ...
... Earth since its formation. With the increasingly accurate Global Polarity Timescale (GPTS) it has become apparent that the rate at which reversals occur has varied considerably throughout the past. During some periods of geologic time (e.g. Cretaceous Long Normal), the Earth's magnetic field is obse ...
Seismo 1: Body waves
... • Powerful imaging techniques (seismic tomography) have been developed to infer physical properties inside the earth’s mantle and core from observations of records of natural earthquakes (“seismograms”)– similarly to techniques used in medicine (CAT-scan, IRM..ultrasound..) Surface wave P ...
... • Powerful imaging techniques (seismic tomography) have been developed to infer physical properties inside the earth’s mantle and core from observations of records of natural earthquakes (“seismograms”)– similarly to techniques used in medicine (CAT-scan, IRM..ultrasound..) Surface wave P ...
Geology 111 - A13 - Earthquakes
... km) as being crustal earthquakes, because they take place within the continental crust (of the North America Plate in our case). Most of the deeper earthquakes take place along the subduction zone, or within the subducting oceanic plate. The Richter Scale—more appropriately called the magnitude scal ...
... km) as being crustal earthquakes, because they take place within the continental crust (of the North America Plate in our case). Most of the deeper earthquakes take place along the subduction zone, or within the subducting oceanic plate. The Richter Scale—more appropriately called the magnitude scal ...
Earthscope
Earthscope is an earth science program using geological and geophysical techniques to explore the structure and evolution of the North American continent and to understand the processes controlling earthquakes and volcanoes. The project has three components: USARRAY, the Plate Boundary Observatory, and the San Andreas Fault Observatory at Depth.The project is funded by the National Science Foundation (NSF), and the data produced is publicly accessible in real-time. Organizations associated with the project include UNAVCO, the Incorporated Research Institutions for Seismology (IRIS), Stanford University, the United States Geological Survey (USGS) and National Aeronautics and Space Administration (NASA). Several international organizations also contribute to the initiative.