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6.7 Earthquake Waves Wave Notes
6.7 Earthquake Waves Wave Notes

... circle mark on the bottom of the cup several times and discuss with their partner their observations and record. 19. Ask students to watch a demonstration of dropping the penny into Cup B (water). Instruct students to get eye level with water level to watch the movement of the penny as it reaches th ...
3.1 What is Wrong? - Secondary Social Science Wikispace
3.1 What is Wrong? - Secondary Social Science Wikispace

... 40 km NW of Auckland Central and extends from Okiritoto stream in the north to Maori Bay in the south, a distance of approximately 5km. One feature that occurs in this environment is a stack called Mototara Island. This feature is about 50m high and is located approximately 20 metres SW of the Otaka ...
here
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. ...
SIMULATION OF QUIET-SUN WAVES IN THE Ca ii INFRARED TRIPLET
SIMULATION OF QUIET-SUN WAVES IN THE Ca ii INFRARED TRIPLET

... The magnetic flux in the quiet Sun is very small (3 Mx cm2 in the internetwork; Lites 2002), so useful observations need a high signal-to-noise ratio (S/ N  103 ), which, when combined with the high time cadence required to resolve the wave propagation, imposes stringent demands on the instrument ...
7.6 - Solids - mrayton.com
7.6 - Solids - mrayton.com

... In the early 1900s, a scientist named Alfred Wegener wrote about his hypothesis of continental drift. This is the hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations. This hypothesis helped to explain the observation of how well ...
Observations of ubiquitous compressive waves in the Sun`s
Observations of ubiquitous compressive waves in the Sun`s

... hundreds of bright and dark fine structures, all displaying highly dynamic behaviour. The elongated structures are the fibrils and shorter structures are the mottles. Recent advances in the modelling of Hα line formation suggest the dark structures are regions of enhanced density that closely follow ...
Earthquakes
Earthquakes

... • S-waves travel ~2 km/s slower than P-waves, and their velocity depends on the density and resistance to shearing of the material. Fluids do not have shear strength and thus cannot transmit S-waves. ...
Multi-station Seismograph Network
Multi-station Seismograph Network

... Asperity—literally “roughness. It is an area on a fault that is stuck or locked. A type of surface roughness appearing along the interface of 2 faults. Physics the elastically compressed region of contact between two surfaces caused by the normal force. Asthenosphere—the ductile part of the earth ju ...
the amplitude of solar oscillations using stellar techniques
the amplitude of solar oscillations using stellar techniques

... not use the weights when calculating the HARPS power spectrum, since these were not available for BiSON and we wanted to make the window functions exactly the same. The amplitude of solar oscillations measured using the stellar technique is slightly lower than that measured by BiSON, by a factor of ...
Earthquakes
Earthquakes

... Earthquake Warning and Forecasts • Seismic Gaps – an area along a fault where relatively few earthquakes have occurred recently but where strong earthquakes occurred in the past • Foreshocks – small earthquakes that can potentially precede an earthquake by a few seconds or a few weeks • Changes in ...
electric conductors
electric conductors

... Q6- What is meant by:1- One of the dangers of electricity occurs as a result of the passage of the electric current to the human body. 2- It is the type of solar eclipse in which the sun appears as a lighting ring and it is formed when the moon is in a higher orbit from earth so, its cone shadow doe ...
Slide 1 - Cloudfront.net
Slide 1 - Cloudfront.net

... Tectonic forces push rock on either side of a fault in opposite directions. Because the rock is locked together, it does not move and deforms in an elastic manner. When enough stress builds up, the rock along the fault fails, the blocks of rock on either side of the fault move, and energy is release ...
Evidence after wegener: seafloor spreading and
Evidence after wegener: seafloor spreading and

... • oldest continental crust ~4 billion years old, oldest oceanic crust only ~175 million years old ...
Chapter 11- Earthquakes
Chapter 11- Earthquakes

... cause more damage • ~3.5 km/sec in the upper crust ...
tectonic forces
tectonic forces

... Where would the “orographic effect” be most likely? ...
How and Where Earthquakes Occur
How and Where Earthquakes Occur

... When two plates are moving, friction occurs at their contact. Due to friction, strain builds up, causing plates to deform, or change shape.  Eventually the strain becomes great enough to overcome friction, and the plates move suddenly, causing an earthquake.  Then, the plates snap back to the shap ...
Seismic Waves - Faculty Web Pages
Seismic Waves - Faculty Web Pages

... • Continental crust is mostly granite, a igneous rock type, which is of a much lower density allowing it to “float” on the deeper layer of higher density material called the mantle • From about 10 to 200 km is the lithosphere region of the crust which is formed of lithosphere plates that are floatin ...
Multi-station Seismograph Network
Multi-station Seismograph Network

... Asperity—literally “roughness. It is an area on a fault that is stuck or locked. A type of surface roughness appearing along the interface of 2 faults. Physics the elastically compressed region of contact between two surfaces caused by the normal force. Asthenosphere—the ductile part of the earth ju ...
large-amplitude, pair-creating oscillations in pulsar and
large-amplitude, pair-creating oscillations in pulsar and

... in Fawley et al. (1977). The electromagnetic fields, current density, and charge density are in the corotating frame. The electric current density is anticipated to be on the order of cGJ or larger (this is also true in steady state situations). We then find jR /j  ...
Layers of the Earth Notes The Earth is made of 4
Layers of the Earth Notes The Earth is made of 4

... This crust is not a solid shell. It is broken up into huge, thick plates that drift on top of the soft, underlying mantle. ...
TRAVEL TIME CURVE USED TO FIND VELOCITY AT DEPTH
TRAVEL TIME CURVE USED TO FIND VELOCITY AT DEPTH

... differ ...
File
File

... 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. ...


... 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. ...
Earth`s Structure
Earth`s Structure

... When two plates slide past each other, they don’t do it smoothly. The large friction forces involved mean that strain builds up and the plates move suddenly when the strain gets too much. ...
Parallel Construction of Nonlinear Force-Free
Parallel Construction of Nonlinear Force-Free

... element leads to a set of coupled nonlinear equations for the locations of the nodal points. These equations were solved using the iterative quasi-Newton method. The initial results produced by Sakurai were promising, but the method does not appear to have been subsequently developed. McClymont, Jia ...
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Ionospheric dynamo region

In the height region between about 85 and 200 km altitude on Earth, the ionospheric plasma is electrically conducting. Atmospheric tidal winds due to differential solar heating or due to gravitational lunar forcing move the ionospheric plasma against the geomagnetic field lines thus generating electric fields and currents just like a dynamo coil moving against magnetic field lines. That region is therefore called ionospheric dynamo region. The magnetic manifestation of these electric currents on the ground can be observed during magnetospheric quiet conditions. They are called Sq-variations (S=solar; q=quiet) and L-variations (L=lunar) of the geomagnetic field.Additional electric currents are generated by the varying magnetospheric electric convection field. These are the DP1-currents (the auroral electrojets) and the polar DP2-currents. Finally, a polar-ring current has been derived from the observations which depends on the polarity of the interplanetary magnetic field. These geomagnetic variations belong to the so-called external part of the geomagnetic field. Their amplitudes reach at most about 1% of the main internal geomagnetic field Bo.
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