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How do seismic stations record data on the other side of the planet?
Wiki User
∙ 10y ago
The seismic stations record data on the other side of the planet by disturbing the timing of the electrical current. The horizontal magnetic directions are hit by a shock wave, allowing information about the area closer to the earthquake. The seismologists average their data and do final calculations. Within two weeks, they have their data.
Wiki User
∙ 10y ago
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What is the difference between a bathymetric profile and a seismic reading?
the difference between a bathymetric profile and a seismic reading is that a bathymetric has salt water and is located on the benthic zone on the ocean floor. The seismic reading on the other hand occurs on land shore and with living animals like turtles and crabs.
Why doesn't the triangulation method give an exact location of an earthquake's epicenter?
In order to locate an earthquake's epicentre it is necessary to calculate the distance of the epicentre from the seismometer stations that recorded the seismic waves. To do this, it is necessary to know the velocity of the P and S seismic waves through the Earth's crust. This velocity is in turn dependent on the density and elastic moduli of the material that the seismic waves travel through. As the Earth is formed from a very wide variety of rocks that have different properties and have undergone differing levels of deformation as well as chemical and other physical changes, the relevant properties can be very variable. Because of this, seismologists cannot know the exact nature of all the material that the seismic waves must travel through and therefore have to create simplified models of the ground in order to estimate the seismic wave speed and in turn estimate the distance to the epicentre. This approximation and simplification will introduce an error into the result and this will mean that the position of the epicentre will be approximate. Normally the margin of error will be quoted along with the best estimate of the location. For more information on the methodology used for the triangulation of earthquake epicentres and the parameters that affect the velocity of seismic waves, please see the related questions.
What is the difference between a seismograph and a seismometer?
The word seismograph is the old fashioned term for a seismometer. They both perform the same function (recording the amplitude, frequency and duration of seismic waves) however they record the data differently. Seismometers record the data digitally, whereas a seismograph plotted the data directly onto a roll of graph paper. Previous answer: A Seismometer is something used to record motions of the ground. Such as earthquakes and nuclear explosions. So they can measure the size of the explosions.
Why do seismic waves that travel along earths surface cause more damage than other seismic waves?
This is because the ground actually moves in an up and down fashion; up to a metre or so by observation!; and this rolling effect damages rigid frangible buildings.
What is a tectonic planet?
A tectonic planet is one that's forms or already has many tectonics or (plates). This means that that planet can have earthquakes, hurricanes or other disaters.
Which is a method that scientists use to determine the composition of Earth's layers?
Shooting seismic waves into the planet
Does a seismograph record the size of a tidal wave or earthquake?
Seismometers or Seismographs are instruments that measure motions of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources.
What are the Antarctic stations?
You can review the list of stations here -- en.wikipedia.org/wiki/Research_stations_in_Antarctica Each is supported by a government that signed the Antarctic Treaty. The stations serve as centers for research about the health of planet earth. A station consists of dormitories, laboratories, cafeterias and work buildings.
How many seismic stations must report seismogram information in order to locate an earthquake?
At least three must do so to locate it unambiguously (two stations can narrow it down to one of two locations, which may be good enough if one of them is on a known fault line and the other is nowhere near one).
What are seismic dampers and why are they important?
Seismic dampers are devices used in building construction to protect the buildings against earthquake and other seismic events.
What seismic features are found near volcanoes?
What other seismic features are found near volcanoes
What other information do scientists look to seismic waves for?
Scientists look to the seismic waves to reveal the Earth's interior.
How do scientist learn about the mantle and core of earth?
Scientists learn about the layers deep within the Earth's crust by studying how seismic waves travel through the Earth. If there is an earthquake somewhere, seismographs in many locations will record it. By looking at the time of arrival of the main set of waves, and how the frequencies of the waves are arranged within the set, scientists can learn about the density and other properties of the layers. The relative differences in arrival times of the S and P seismic waves at several recording stations tell scientists about the different speeds those waves were traveling at, which in turn gives information about the density of the material the layer is made of, and how thick the layer is in several directions. [scienceline.ucsb.edu]
What is the difference between seismic waves and seismograph?
A seismograph is an instrument that measures the seismic wave activity in an area. According to Wikipedia, Seismometersare instruments that measure and record motions of the ground, including those of seismic waves generated by earthquakes, nuclear explosions, and other seismic sources. Records of seismic waves allow seismologists to map the interior of the Earth, and locate and measure the size of these different sources. A seismic wave, according to wikipedia is, "Seismic waves are waves of force that travel through the Earth or other elastic body, for example as the result of an earthquake, explosion, or some other process that imparts forces to the body. Seismic waves are also continually excited on Earth by the incessant pounding of ocean waves (referred to as the microseism) and the wind."Seismograph is another Greek term from seismós and γράφω, gráphō, to draw. It is often used to mean seismometer, though it is more applicable to the older instruments in which the measuring and recording of ground motion were combined than to modern systems, in which these functions are separated. Both types provide a continuous record of ground motion; this distinguishes them from seismoscopes, which merely indicate that motion has occurred, perhaps with some simple measure of how large it was.
What was the Beatles song that could not be played on the US radio stations?
Some US radio stations refused to play "The Ballad of John and Yoko" because John used the word "Christ" as an expletive in the song. Other stations would play the record, but only after "bleeping" the word every time John sang it.
What research do scientists do in the research stations of Antarctica?
Antarctic research stations are supported by governments that signed or ratified the Antarctic Treaty, which dedicates the continent to science. Temporary workers live and work there. The stations provide sleeping areas, eating and work areas, and equipment storage stations where scientists and people who work in support of science conduct their research into the health of planet earth.
Which type of seismic waves arrives at distant points before any other seismic waves?
Primary waves are seismic waves and the arrive first after an earthquake occurs.
