earthquakes
... • a seismic sea wave generated by an earthquake with an epicenter above the ocean crust or near the ocean • seismic sea waves can be disastrous to property and life near ocean areas • the Good Friday Earthquake of 1964 in Alaska generated a tsunami which devastated the west coast of North America ...
... • a seismic sea wave generated by an earthquake with an epicenter above the ocean crust or near the ocean • seismic sea waves can be disastrous to property and life near ocean areas • the Good Friday Earthquake of 1964 in Alaska generated a tsunami which devastated the west coast of North America ...
568KB - NZQA
... the-focus-and-epicentre-of-an-earthquake-i18.gif At 34 km depth, this earthquake and the ‘aftershocks’ were considered ‘shallow’; energy is released in the form of ground shaking. As distance decreases from the focus point to the epicentre, the amount of shaking is increased. The amount of shaking a ...
... the-focus-and-epicentre-of-an-earthquake-i18.gif At 34 km depth, this earthquake and the ‘aftershocks’ were considered ‘shallow’; energy is released in the form of ground shaking. As distance decreases from the focus point to the epicentre, the amount of shaking is increased. The amount of shaking a ...
Seismic Waves
... The S waves, also called secondary or sheer waves is slower than the P wave, maximum speed is 3 km/second. S waves shake the ground up and down and back and forth perpendicular to the direction it is traveling. Because S waves do not travel in a linear motion these are the most destructive. S waves ...
... The S waves, also called secondary or sheer waves is slower than the P wave, maximum speed is 3 km/second. S waves shake the ground up and down and back and forth perpendicular to the direction it is traveling. Because S waves do not travel in a linear motion these are the most destructive. S waves ...
Thehazardspresentedhavethegreatestimpactonthepoorestpeople
... Also obviously the type of event also determines the impact it has on people – rich or poor. With the L’Aquila earthquake the only primary effect it produced was ground shaking for 20 seconds whereas the Bandah Aceh earthquake was submarine and produced tsunami waves. There were several waves varyin ...
... Also obviously the type of event also determines the impact it has on people – rich or poor. With the L’Aquila earthquake the only primary effect it produced was ground shaking for 20 seconds whereas the Bandah Aceh earthquake was submarine and produced tsunami waves. There were several waves varyin ...
types of sesmic waves 4.96MB 2017-03-29 12
... slow to very high speeds. • Usually occur along steep-sided hills and mountains because of the pull of gravity. • An avalanche is a sudden flow of a large mass of snow or ice down a slope, sometimes at speeds exceeding 160 km/hr. • Mass movement and avalanches can be started when earthquakes destabi ...
... slow to very high speeds. • Usually occur along steep-sided hills and mountains because of the pull of gravity. • An avalanche is a sudden flow of a large mass of snow or ice down a slope, sometimes at speeds exceeding 160 km/hr. • Mass movement and avalanches can be started when earthquakes destabi ...
Prediction of Tele-Tsunami from Canary Island on the West African
... surface slopes and some of the largest landslides on Earth have been found to occur underwater. A primary hazard of submarine landslides, is landslide-generated tsunami waves. Submarine faulting moves the seafloor vertically while offshore slumping of sediments displaces large mass of water in the f ...
... surface slopes and some of the largest landslides on Earth have been found to occur underwater. A primary hazard of submarine landslides, is landslide-generated tsunami waves. Submarine faulting moves the seafloor vertically while offshore slumping of sediments displaces large mass of water in the f ...
msword - rgs.org
... described scenes of complete and utter devastation. This resulted in an estimated 25 million tonnes of debris- much of which is still awaiting disposal. The reconstruction of the devastated areas is expected to cost £181 billion (23 trillion yen) in total. Fukushima Nuclear Power Plant: At the time ...
... described scenes of complete and utter devastation. This resulted in an estimated 25 million tonnes of debris- much of which is still awaiting disposal. The reconstruction of the devastated areas is expected to cost £181 billion (23 trillion yen) in total. Fukushima Nuclear Power Plant: At the time ...
Lesson 6: Japan`s Earthquake and Tsunami
... The 2011 earthquake occurred because a section of the Earth’s crust, 300 km long, moved upwards 10 metres. This meant that some of the ocean floor was suddenly uplifted causing an unexpected and enormous jolt to the water at the bottom of the ocean. Some waves were sent towards Japan’s coastline and ...
... The 2011 earthquake occurred because a section of the Earth’s crust, 300 km long, moved upwards 10 metres. This meant that some of the ocean floor was suddenly uplifted causing an unexpected and enormous jolt to the water at the bottom of the ocean. Some waves were sent towards Japan’s coastline and ...
aspen opinion - Aspen Insurance Holdings
... one of the main obstacles in estimating seismic and tsunami hazard. These are often too short. For example, no earthquake greater than magnitude 7.6 has been observed along the Manila Trench in the past 100 years. This does not mean that a quake of greater magnitude cannot happen in this area, but t ...
... one of the main obstacles in estimating seismic and tsunami hazard. These are often too short. For example, no earthquake greater than magnitude 7.6 has been observed along the Manila Trench in the past 100 years. This does not mean that a quake of greater magnitude cannot happen in this area, but t ...
Chapter 16 Earthquakes April 18, 1906: San Francisco October 17
... 2) Magnitude: the amount of energy released. a) Richter Scale: a logarithmic numerical scale (a 5 vibrates ten times stronger than a 4, etc, ) (about 32 times more energy is released between a 4 and a 5, so a magnitude 6 is almost 1000 times more powerful than a 4) b) Moment magnitude: incorporates ...
... 2) Magnitude: the amount of energy released. a) Richter Scale: a logarithmic numerical scale (a 5 vibrates ten times stronger than a 4, etc, ) (about 32 times more energy is released between a 4 and a 5, so a magnitude 6 is almost 1000 times more powerful than a 4) b) Moment magnitude: incorporates ...
Earth Science
... May 22, 1960 near Valdivia, in southern Chile magnitude of 9.5 "largest earthquake of the 20th Century". ...
... May 22, 1960 near Valdivia, in southern Chile magnitude of 9.5 "largest earthquake of the 20th Century". ...
Background - Omicronworldgeo
... generated at the source of an underwater earthquake, there is usually time -- from 20 minutes to two hours -- to get people away as it builds in the ocean. "People along the Japanese coasts, along the coasts of California -- people are taught to move away from the coasts. But a lot of these people i ...
... generated at the source of an underwater earthquake, there is usually time -- from 20 minutes to two hours -- to get people away as it builds in the ocean. "People along the Japanese coasts, along the coasts of California -- people are taught to move away from the coasts. But a lot of these people i ...
Ensy 12 – Unit: Natural Disasters
... called a “Meteotsunami”, which can raise tides several meters above normal levels. As these storm surges reach shore, they may resemble though are not tsunamis. 12. About 80% of tsunamis occur in the Pacific Ocean, but they are possible wherever there are large bodies of water, including lakes. 13. ...
... called a “Meteotsunami”, which can raise tides several meters above normal levels. As these storm surges reach shore, they may resemble though are not tsunamis. 12. About 80% of tsunamis occur in the Pacific Ocean, but they are possible wherever there are large bodies of water, including lakes. 13. ...
20150511082695
... c) Richter scale and Moment Magnitude scale d) Moment magnitude scale and Mercalli scale ...
... c) Richter scale and Moment Magnitude scale d) Moment magnitude scale and Mercalli scale ...
Earthquake Quiz - cohort6science
... _______________11. The type of stress that pushes rock together causing a collision is tension. _______________12. The focus is the point on the Earth’s surface where an earthquake begins. _______________13. Compression is a type of stress that causes the Earth’s landforms to change shape. _________ ...
... _______________11. The type of stress that pushes rock together causing a collision is tension. _______________12. The focus is the point on the Earth’s surface where an earthquake begins. _______________13. Compression is a type of stress that causes the Earth’s landforms to change shape. _________ ...
Earthquakes
... Anhui were affected. A 520 mile- wide area was destroyed and in some counties, 60% of the population was killed. ...
... Anhui were affected. A 520 mile- wide area was destroyed and in some counties, 60% of the population was killed. ...
Earthquakes
... - The farther apart P and S Waves are, the farther away the earthquake is (like counting between thunder and lightning) - Epicenter is where the earthquake begins on the surface, the focus is the place deep in the crust where it begins. - Normal Fault (tension) ...
... - The farther apart P and S Waves are, the farther away the earthquake is (like counting between thunder and lightning) - Epicenter is where the earthquake begins on the surface, the focus is the place deep in the crust where it begins. - Normal Fault (tension) ...
Chapter 19 Notes
... – measures intensity – based on the amount of damage – Roman numerals I to XII ...
... – measures intensity – based on the amount of damage – Roman numerals I to XII ...
S05_4359_L22
... Deterministic-largest EQ likely on a particular fault or in a region in a given time interval (GutenbergRichter Scaling Law-plot log [cumulative number of EQ] vs magnitude). Probabilistic-likelihood of a given size EQ striking a fault or region within a future time interval. Long Term Regional Precu ...
... Deterministic-largest EQ likely on a particular fault or in a region in a given time interval (GutenbergRichter Scaling Law-plot log [cumulative number of EQ] vs magnitude). Probabilistic-likelihood of a given size EQ striking a fault or region within a future time interval. Long Term Regional Precu ...
NSF flyer - NEES at Oregon State University
... infrastructure includes a 7.5 ton gantry crane, instrumentation carriage spanning the basin width, unistrut imbedded in the basin walls and floor to secure models, and two 4.2 m (14 ft) wide access ramps. Steady flow currents can be installed on a project-specific basis. The Large Wave Flume is 104 ...
... infrastructure includes a 7.5 ton gantry crane, instrumentation carriage spanning the basin width, unistrut imbedded in the basin walls and floor to secure models, and two 4.2 m (14 ft) wide access ramps. Steady flow currents can be installed on a project-specific basis. The Large Wave Flume is 104 ...
Tsunami
A tsunami (plural: tsunamis or tsunami; from Japanese: 津波, lit. ""harbor wave"";English pronunciation: /tsuːˈnɑːmi/), also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami. In being generated by the displacement of water, a tsunami contrasts both with a normal ocean wave generated by wind and with tides, which are generated by the gravitational pull of the Moon and the Sun on bodies of water.Tsunami waves do not resemble normal sea waves, because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason they are often referred to as tidal waves, although this usage is not favored by the scientific community because tsunamis are not tidal in nature. Tsunamis generally consist of a series of waves with periods ranging from minutes to hours, arriving in a so-called ""wave train"". Wave heights of tens of meters can be generated by large events. Although the impact of tsunamis is limited to coastal areas, their destructive power can be enormous and they can affect entire ocean basins; the 2004 Indian Ocean tsunami was among the deadliest natural disasters in human history with at least 230,000 people killed or missing in 14 countries bordering the Indian Ocean.The Greek historian Thucydides suggested in his late-5th century BC History of the Peloponnesian War, that tsunamis were related to submarine earthquakes, but the understanding of a tsunami's nature remained slim until the 20th century and much remains unknown. Major areas of current research include trying to determine why some large earthquakes do not generate tsunamis while other smaller ones do; trying to accurately forecast the passage of tsunamis across the oceans; and also to forecast how tsunami waves would interact with specific shorelines.