ppt
... • A circle with a radius of d is drawn around the seismic station. • Earthquake occurred somewhere on the circle. • The intersection from three stations shows the epicenter location. ...
... • A circle with a radius of d is drawn around the seismic station. • Earthquake occurred somewhere on the circle. • The intersection from three stations shows the epicenter location. ...
Introducción a la Geofísica ( )
... (b) Discuss in your own words the information that these data give about the deep interior of the Earth. The Earth’s shell-like internal structure of mantle, fluid outer core, and solid inner core are evident from the velocities and elastic parameters ratios. The inner core is solid, but the high v ...
... (b) Discuss in your own words the information that these data give about the deep interior of the Earth. The Earth’s shell-like internal structure of mantle, fluid outer core, and solid inner core are evident from the velocities and elastic parameters ratios. The inner core is solid, but the high v ...
Earthquake Lab Walkthrough
... 1. In what order do earthquake waves appear on a seismogram? 2. How many points are needed to determine the epicenter of an earthquake? Why? ...
... 1. In what order do earthquake waves appear on a seismogram? 2. How many points are needed to determine the epicenter of an earthquake? Why? ...
Chapter 19: Earthquakes - Richmond County Schools
... Measuring and locating Earthquakes • Magnitude is a measure of the energy released during a earthquake and can be measured on the Richter Scale. • Intensity is a measure of damage caused by a quake and is measured by the Modified Mercalli Scale – Uses roman numerals – Higher the number the greater ...
... Measuring and locating Earthquakes • Magnitude is a measure of the energy released during a earthquake and can be measured on the Richter Scale. • Intensity is a measure of damage caused by a quake and is measured by the Modified Mercalli Scale – Uses roman numerals – Higher the number the greater ...
Features of Earthquakes
... As rocks slide past each other along a fault, rough areas can cause the rock to become stuck. Energy builds up in this “stuck” part of the rock. When enough energy builds up, the rock reaches the elastic limit and moves a large distance in a short amount of time. When this movement occurs, energy is ...
... As rocks slide past each other along a fault, rough areas can cause the rock to become stuck. Energy builds up in this “stuck” part of the rock. When enough energy builds up, the rock reaches the elastic limit and moves a large distance in a short amount of time. When this movement occurs, energy is ...
Earthquakes
... - as the rocks on each side of a fault move slowly, the stress increases and they slowly deform until suddenly they fracture and spring back to their original shape (rebound) - this rebound causes vibrations called seismic waves, and a series of smaller tremors called aftershocks ...
... - as the rocks on each side of a fault move slowly, the stress increases and they slowly deform until suddenly they fracture and spring back to their original shape (rebound) - this rebound causes vibrations called seismic waves, and a series of smaller tremors called aftershocks ...
Finding an Epicenter - Phoenix Central School District
... vibrate parallel to the direction of movement. (push-pull like a slinky) • Travel faster than any other wave (6-8 km./s) • Travel through solids, liquids, and gases ...
... vibrate parallel to the direction of movement. (push-pull like a slinky) • Travel faster than any other wave (6-8 km./s) • Travel through solids, liquids, and gases ...
Word - Windows to the Universe
... - Waveforms arrive later - Amount of displacement decreases - Amplitude of waveforms decreases, though there are exceptions Permanent vertical displacement not apparent Interpretation: Earthquake source was closer to southern stations, as both displacement and waveforms occurred progressively later ...
... - Waveforms arrive later - Amount of displacement decreases - Amplitude of waveforms decreases, though there are exceptions Permanent vertical displacement not apparent Interpretation: Earthquake source was closer to southern stations, as both displacement and waveforms occurred progressively later ...
Earthquake Notes - Science at East Lee Campus
... Globally, this is the 4th largest earthquake since 1900. ...
... Globally, this is the 4th largest earthquake since 1900. ...
UNISDRposter_A0_Jan_2016_v5
... and inundation, vulnerability etc. Hence global maps should be used with caution, and only for global and regional assessments ...
... and inundation, vulnerability etc. Hence global maps should be used with caution, and only for global and regional assessments ...
Chapter 7 earthquakes
... jolts with no movement in between. Significant energy buildup possible, resulting in is largemagnitude damaging earthquake ...
... jolts with no movement in between. Significant energy buildup possible, resulting in is largemagnitude damaging earthquake ...
Earthquake Hazards
... The highest toll for an earthquake-tsunami combination since 1900 took place on December 28, 1908, when a 7.2 magnitude quake struck Messina, Italy, killing an estimated 70,000 to 100,000 people. The deadliest earthquake ever recorded is believed to have occurred on January 23, 1556, in Shansi, Ch ...
... The highest toll for an earthquake-tsunami combination since 1900 took place on December 28, 1908, when a 7.2 magnitude quake struck Messina, Italy, killing an estimated 70,000 to 100,000 people. The deadliest earthquake ever recorded is believed to have occurred on January 23, 1556, in Shansi, Ch ...
poster about Tsunami here.
... • The earthquake was a magnitude 9.0 “megathrust” event, with the epicentre located 72 kilometres east of the Oshika Peninsula of Tohoku at a depth of 32 kilometres. • The earthquake is the most powerful to have hit Japan, and one of the five largest earthquakes recorded in the world since records b ...
... • The earthquake was a magnitude 9.0 “megathrust” event, with the epicentre located 72 kilometres east of the Oshika Peninsula of Tohoku at a depth of 32 kilometres. • The earthquake is the most powerful to have hit Japan, and one of the five largest earthquakes recorded in the world since records b ...
I have, Who has
... I have Secondary (S) Wave. Who has the 3 main types of waves? I have Seismograph. Who has cracks in the Earth’s surface where tectonic plates meet and can lead to earthquakes? I have Richter Scale. Who has the force that is carried through waves? ...
... I have Secondary (S) Wave. Who has the 3 main types of waves? I have Seismograph. Who has cracks in the Earth’s surface where tectonic plates meet and can lead to earthquakes? I have Richter Scale. Who has the force that is carried through waves? ...
chapter 6 earthquakes
... ground when rock (plates) move suddenly and release energy. • aftershock – a release in energy after an earthquake ...
... ground when rock (plates) move suddenly and release energy. • aftershock – a release in energy after an earthquake ...
2010 Chile earthquake
... Hawaiian media reported that tsunami warning sirens sounded at 6 am local time.[52] The U.S. Tsunami Warning Center issued advisories about potential tidal waves of less than 1 m (3 ft 3 in) striking the Pacific Ocean coastline between California and most of Alaska late in the afternoon or through t ...
... Hawaiian media reported that tsunami warning sirens sounded at 6 am local time.[52] The U.S. Tsunami Warning Center issued advisories about potential tidal waves of less than 1 m (3 ft 3 in) striking the Pacific Ocean coastline between California and most of Alaska late in the afternoon or through t ...
Get Up and Go
... It was early in the morning on December 26, 2004. The Indian Ocean was very calm. But at the bottom of the sea, a big piece of the sea floor suddenly moved. The movement caused a big earthquake. The earthquake registered, or was measured, at 9.0 on the Richter scale. The Richter scale is the measure ...
... It was early in the morning on December 26, 2004. The Indian Ocean was very calm. But at the bottom of the sea, a big piece of the sea floor suddenly moved. The movement caused a big earthquake. The earthquake registered, or was measured, at 9.0 on the Richter scale. The Richter scale is the measure ...
244KB - NZQA
... These two plates are pushing into each other in a transform (strike-slip) fault, as their densities are similar – there are a number of faults in this area which may be responsible. This pushing causes pressure to build up, and eventually some pressure is released and the plates move, releasing a hu ...
... These two plates are pushing into each other in a transform (strike-slip) fault, as their densities are similar – there are a number of faults in this area which may be responsible. This pushing causes pressure to build up, and eventually some pressure is released and the plates move, releasing a hu ...
599KB - NZQA
... These two plates are pushing into each other in a transform (strike-slip) fault, as their densities are similar – there are a number of faults in this area which may be responsible. This pushing causes pressure to build up, and eventually some pressure is released and the plates move, releasing a hu ...
... These two plates are pushing into each other in a transform (strike-slip) fault, as their densities are similar – there are a number of faults in this area which may be responsible. This pushing causes pressure to build up, and eventually some pressure is released and the plates move, releasing a hu ...
Slide 1 - Cloudfront.net
... •Area along a fault where few earthquakes happen •Scientist predict that larger earthquakes will happen here due to build up of stress ...
... •Area along a fault where few earthquakes happen •Scientist predict that larger earthquakes will happen here due to build up of stress ...
Earthquakes
... (ii) Secondary (shear waves): 3.5 km/sec, particles move perpendicular to the direction of wave motion (Fig. 6) Longitudinal (surface waves): up and down + side to side movement; drag + shear!, slowest. Intensity of earthquakes Mercalli intensity scale Magnitude of earthquakes Richter's scale: For a ...
... (ii) Secondary (shear waves): 3.5 km/sec, particles move perpendicular to the direction of wave motion (Fig. 6) Longitudinal (surface waves): up and down + side to side movement; drag + shear!, slowest. Intensity of earthquakes Mercalli intensity scale Magnitude of earthquakes Richter's scale: For a ...
What is an earthquake?
... What is an earthquake? • Used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip • Caused by volcanic or magmatic activity, • Caused by other sudden stress changes in the earth. ...
... What is an earthquake? • Used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip • Caused by volcanic or magmatic activity, • Caused by other sudden stress changes in the earth. ...
A.B. Roy - Indian Geophysical Union
... stations have been deployed in the Pacific Ocean, which have ‘pressure recorder ’ for detecting the passage of a Tsunami. The basic assumption is that the pressure of the water column is related to the height of the sea-surface. Any sudden change in the depth of the water column is indicated by a co ...
... stations have been deployed in the Pacific Ocean, which have ‘pressure recorder ’ for detecting the passage of a Tsunami. The basic assumption is that the pressure of the water column is related to the height of the sea-surface. Any sudden change in the depth of the water column is indicated by a co ...
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.