Earthquakes - PH - teacher
... • Although tsunamis travel quickly, there is sufficient time to evacuate all but the area closest to the epicenter. ...
... • Although tsunamis travel quickly, there is sufficient time to evacuate all but the area closest to the epicenter. ...
CompositionoftheEarth
... potential of an earthquake. The higher the magnitude, the more destructive the quake. ...
... potential of an earthquake. The higher the magnitude, the more destructive the quake. ...
Plate motion, earthquakes, and volcanoes
... Do these always happen? _________ How long before the earthquake do foreshocks happen? ...
... Do these always happen? _________ How long before the earthquake do foreshocks happen? ...
Earthquakes
... Structures that are resistant to the vibrations of Earth’s crust Structures are made with moorings Made of steel and are filled with alternating layers of rubber and steel These structures absorb the energy produced from the earthquake ...
... Structures that are resistant to the vibrations of Earth’s crust Structures are made with moorings Made of steel and are filled with alternating layers of rubber and steel These structures absorb the energy produced from the earthquake ...
How and Where Do Earthquakes Occur? Causes of Earthquakes
... • The place underground where the break first occurs is the focus of the earthquake. • The epicenter is the location at Earth’s surface just above the focus. • When the vibrations reach the surface , we feel them as an earthquake, first at the epicenter and then at greater distances from the epicent ...
... • The place underground where the break first occurs is the focus of the earthquake. • The epicenter is the location at Earth’s surface just above the focus. • When the vibrations reach the surface , we feel them as an earthquake, first at the epicenter and then at greater distances from the epicent ...
Chapter 8 - Earthquakes
... • Intensity – How much ground shaking is felt by people or how much damage a quake causes. This is measured on the Mercalli Intensity Scale. A single earthquake can have a variety of intensities levels with the highest near the epicenter decreasing outwards. The highest number on this scale is XI. ...
... • Intensity – How much ground shaking is felt by people or how much damage a quake causes. This is measured on the Mercalli Intensity Scale. A single earthquake can have a variety of intensities levels with the highest near the epicenter decreasing outwards. The highest number on this scale is XI. ...
Waves that appear from nowhere and disappear without a trace
... 0375-9601/$ – see front matter © 2008 Elsevier B.V. All rights reserved. ...
... 0375-9601/$ – see front matter © 2008 Elsevier B.V. All rights reserved. ...
here
... Information carried by these waves is used to: -Locate the focus of the earthquake. -Calculate the earthquake magnitude. - “See” into the Earth’s interior. ...
... Information carried by these waves is used to: -Locate the focus of the earthquake. -Calculate the earthquake magnitude. - “See” into the Earth’s interior. ...
Earthquakes and Earth`s Interior Summary
... Earthquake prediction is a short-term estimate of future earthquake activity. Earthquake prediction relies on earthquake precursors, which must be observed in time for public officials to take appropriate actions. Despite some documented successes, no earthquake precursor, or set of precursors, has ...
... Earthquake prediction is a short-term estimate of future earthquake activity. Earthquake prediction relies on earthquake precursors, which must be observed in time for public officials to take appropriate actions. Despite some documented successes, no earthquake precursor, or set of precursors, has ...
Earthquakes
... Henan, Gansu, Hebei, Shandong, Jiangsu, and Anhui were affected. A 520 mile- wide area was destroyed and in some counties, 60% of the population was killed. ...
... Henan, Gansu, Hebei, Shandong, Jiangsu, and Anhui were affected. A 520 mile- wide area was destroyed and in some counties, 60% of the population was killed. ...
P waves
... Seismic waves that travel along Earth’s surface are called surface waves. Each wave travels through Earth’s layers in a different way and at different speeds. The speed of the seismic wave depends on the kind of material it travels through. Waves that travel through solids, liquids, and gases are ca ...
... Seismic waves that travel along Earth’s surface are called surface waves. Each wave travels through Earth’s layers in a different way and at different speeds. The speed of the seismic wave depends on the kind of material it travels through. Waves that travel through solids, liquids, and gases are ca ...
the Earth - Physical Science 100
... 143o. Therefore the shadow zone for “S” waves is circular but the shadow zone for “P” waves is doughnut shaped. c. The shadow zone for “S” waves is evidence for a liquid core in the earth. d. The shadow zone is the result of a very dense igneous rock in the upper mantle that prevents both “S” and “P ...
... 143o. Therefore the shadow zone for “S” waves is circular but the shadow zone for “P” waves is doughnut shaped. c. The shadow zone for “S” waves is evidence for a liquid core in the earth. d. The shadow zone is the result of a very dense igneous rock in the upper mantle that prevents both “S” and “P ...
12-1
... _____ 35. The composition of the material through which P waves and S waves travel affects a. the power and duration of the waves. b. the angle at which the waves travel. c. the speed and direction of the waves. d. the intensity and composition of the waves. _____ 36. Through what type of materials ...
... _____ 35. The composition of the material through which P waves and S waves travel affects a. the power and duration of the waves. b. the angle at which the waves travel. c. the speed and direction of the waves. d. the intensity and composition of the waves. _____ 36. Through what type of materials ...
File
... Reverse Fault The hanging wall moves up relative to the foot wall. This fault is caused by Compressional stress. ...
... Reverse Fault The hanging wall moves up relative to the foot wall. This fault is caused by Compressional stress. ...
What are earthquakes?
... intensity of an earthquake. The scale quantifies the effects of an earthquake on the Earth's surface, humans, objects of nature, and man-made structures on a scale of I through XII, with I denoting a weak earthquake and XII one that causes almost complete destruction. ...
... intensity of an earthquake. The scale quantifies the effects of an earthquake on the Earth's surface, humans, objects of nature, and man-made structures on a scale of I through XII, with I denoting a weak earthquake and XII one that causes almost complete destruction. ...
Earth Quakes chapter 19
... -These fractures are caused by stress (the amount of force per unit area acting on a material) 3 types of stress 1. Compression: decreases volume of a material. 2. Tension: pulls a material apart 3. Shear: causes a material to twist Strain: The deformation of materials in response to ...
... -These fractures are caused by stress (the amount of force per unit area acting on a material) 3 types of stress 1. Compression: decreases volume of a material. 2. Tension: pulls a material apart 3. Shear: causes a material to twist Strain: The deformation of materials in response to ...
Seismic waves in the ionosphere
... differences at the ground are associated with the 3D structure of the Earth, which is not taken into account in the synthetics. Differences in the amplitude of the ionospheric waves are probably due to a non-correct viscosity profile in the atmosphere, such data being badly known at high altitude. D ...
... differences at the ground are associated with the 3D structure of the Earth, which is not taken into account in the synthetics. Differences in the amplitude of the ionospheric waves are probably due to a non-correct viscosity profile in the atmosphere, such data being badly known at high altitude. D ...
ppt. - Science with Ms. Braget
... will occur, but they do know areas that are at high risk for earthquakes and can try too prevent heavy damage and loss of life by retrofitting and reinforcing buildings and roads in those areas. ...
... will occur, but they do know areas that are at high risk for earthquakes and can try too prevent heavy damage and loss of life by retrofitting and reinforcing buildings and roads in those areas. ...
Chapter 11 -2 Study Guide
... Seismic waves that do not travel through the Earth as fast as P waves are called Secondary Waves or S – Waves. S waves travel through solids. -Not liquids or gases Surface Waves or L waves L waves originate (start) on the Earth’s surface at the epicenter. They move along the surface the way wa ...
... Seismic waves that do not travel through the Earth as fast as P waves are called Secondary Waves or S – Waves. S waves travel through solids. -Not liquids or gases Surface Waves or L waves L waves originate (start) on the Earth’s surface at the epicenter. They move along the surface the way wa ...
- Catalyst
... The East African rift zone represents a continental rift. The topography of East Africa is highest in Africa because of heating the base of the continent by upwelling basaltic magma. The Red Sea is an incipient ocean basin. Note the dark basalt flows seen along the margins of the Red Sea in the ...
... The East African rift zone represents a continental rift. The topography of East Africa is highest in Africa because of heating the base of the continent by upwelling basaltic magma. The Red Sea is an incipient ocean basin. Note the dark basalt flows seen along the margins of the Red Sea in the ...
Sample Science Lessons
... c. Explain how the human eye sees objects and colors in terms of wavelengths. d. Describe how the behavior of waves is affected by medium (such as air, water, solids). e. Relate the properties of sound to everyday experiences. f. Diagram the parts of the wave and explain how the parts are affected b ...
... c. Explain how the human eye sees objects and colors in terms of wavelengths. d. Describe how the behavior of waves is affected by medium (such as air, water, solids). e. Relate the properties of sound to everyday experiences. f. Diagram the parts of the wave and explain how the parts are affected b ...
Earth`s interior - Rochester Community Schools
... Background: Scientists have learned about the physical structure of Earth’s interior by measuring seismic waves. Seismic waves are an example of traveling waves, or mechanical waves that travel through a medium. Sound waves are the most familiar example of traveling waves. The speed of sound within ...
... Background: Scientists have learned about the physical structure of Earth’s interior by measuring seismic waves. Seismic waves are an example of traveling waves, or mechanical waves that travel through a medium. Sound waves are the most familiar example of traveling waves. The speed of sound within ...
Seismic Waves - Faculty Web Pages
... various paths and speeds depending on the material they are passing through. • Oceanic crust is composed mostly of basalt which is a sedimentary rock allowing waves to travel easily resulting more destruction on the surface. • Continental crust is mostly granite, a igneous rock type, which is of a m ...
... various paths and speeds depending on the material they are passing through. • Oceanic crust is composed mostly of basalt which is a sedimentary rock allowing waves to travel easily resulting more destruction on the surface. • Continental crust is mostly granite, a igneous rock type, which is of a m ...
Rogue wave
Rogue waves (also known as freak waves, monster waves, killer waves, extreme waves, and abnormal waves) are relatively large and spontaneous surface waves that occur far out in open water, and are a threat even to large ships and ocean liners.They present two kinds of danger: although rare, they are unpredictable, and may appear suddenly or without warning, and they can impact with tremendous force (a 12 meter wave in the usual ""linear"" model would have a breaking force of 6 million tons per square metre (MT/m2); modern ships are designed to tolerate a breaking wave of 15 MT/m2), but a rogue wave can dwarf both of these figures with a breaking force of 100 MT/m2.In oceanography, rogue waves are more precisely defined as waves whose height is more than twice the significant wave height (Hs or SWH), which is itself defined as the mean of the largest third of waves in a wave record. Therefore, rogue waves are not necessarily the biggest waves found on the water; they are, rather, unusually large waves for a given sea state. Rogue waves seem not to have a single distinct cause, but occur where physical factors such as high winds and strong currents cause waves to merge to create a single exceptionally large wave.Rogue waves can occur in other media than water. In particular, optical rogue waves allow study of the phenomenon in the laboratory. A 2015 paper studied the wave behavior around a rogue wave, including optical, and the Draupner wave, and concluded that ""rogue events do not necessarily appear without a warning, but are often preceded by a short phase of relative order"".