At the local warning center a seismometer will provide accurate recordings of volcanic activity. |
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The seismometer vault is a cylindrical tank about a meter wide and two meters deep, with a concrete pad at the bottom. |
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To the left is the video camera and radio antenna, and dimly visible at far left is a dark box which contains the seismometer. |
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It is calculated either from the signal recorded by a seismometer, either from the period of this signal. |
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A solar panel and communications antenna are attached to a metal mast and installed within 4.6 meters of the seismometer vault. |
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Each station uses a digital, threecomponent, broad-band seismometer, an instrument that measures and amplifies ground motion. |
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Links here are to various sources with information on how to build a seismometer. |
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But what neither that first seismometer nor any produced since can do is predict quakes. |
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The deck crew is lowering an ocean bottom seismometer into the sea with a crane. |
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The present-day seismic network in Belgium consists of two different parts, the seismometer network and the accelerometer network. |
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The systems could readily be deployed at water level sites if the seismometer can be properly placed. |
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It is a seismometer for the shifting ground of British politics. |
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We use a tool called a seismometer to record the shaking and then try to understand what happened before and during the quake. |
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Guisborough's Prior Pursglove College has its own seismometer, which can detect quakes around the globe. |
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The system consists of a short period seismometer, a programmable digitizer, signal processor, message generator, and a satellite data collection platform. |
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Can you find the seismometer and satellite beacon after this storm? |
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The drum and attached paper rotates beneath a blue-ink pen, which moves in proportion to the ground motion experienced by the seismometer that feeds the pen its data. |
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A data logger is one element of a seismic station, which also includes a seismometer inside a vault, a solar panel and sometimes a freestanding communications module. |
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In the future this question will be far easier to answer, because the CTI label-company, Spectraseis plc, has developed a new detection method: a seismometer measures underground movements on the sea floor. |
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A piece of paper is wrapped around a rotating drum of the helicorder which receives the seismic signal from a seismometer. |
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It requires a great deal of patience as you wait and wait for the needle on the seismometer to begin scratching more earnestly as it detects tremors in the ground. |
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It will place the first seismometer directly on the surface of Mars to measure Martian quakes and use seismic waves to learn about the planet's interior. |
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We have been speaking to the British Geological Survey and they are looking to see if there is any suitable bit of equipment they could put in to replace the seismometer. |
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