In regards to a seismograph’s location, does the p-s interval get larger or smaller with the increasing distance from the epicenter?

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When an earthquake occurs, two types of sound waves are generated and travel through the earth. The primary, or P, wave has a speed of about 10.5 km/s and the secondary, or S, wave has a speed of about 5.5 km/s. A seismograph, located some distance away, records the arrival of the P wave and then, 140 s later, records the arrival of the S wave. Assuming that the waves travel in a straight line, how far is the seismograph from the earthquake?

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For geography homework I have to make Dominoes of Richter Scale to Seismograph. In other words I’m making it so one side of it will be a Richter measurement and the other will be the same in Seismic measurement, but I cannot find anything showing this (E.G. 6.0 On the Richter scale = Whatever on the Seismograph) someone give me a link or some help?

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How is the magnitude of an earthquake recorded?

If you can answer, could you try to do it like an excellence/A+ style question, using the words ‘seismograph’ and ‘seismogram.’

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Please give me at least three examples. Except for the seismograph(seismic waves), echo sounding, and geophysics.. Please give me other than that. I need it for my homework. Please.

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what does a seismograph have to do with the Richter scale?

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What is the amplitude (in mm) registered on a standard seismograph (same as that used by Charles Richter) of a Magnitude 5 earthquake at 200km?

I don’t even know where to start with this problem D:

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My apartment has tremors and vibrations that feel like a small earthquake. It comes and goes, and my landlord and I have no idea what it is. We’ve checked with other tenants with respect to fans, A/C’s, etc. We would like to measure the vibrations and feed it into a PC so that we try and get a better understanding of thigns. Any ideas on how to do this short of buying a seismograph? It wakes me up sometimes in the middle of the night as it shakes my bed, so I would like to fix this. And no we are not thinking of calling an Exorcist.
I agree that the goal is to find the source, and we think if we can track its frequency then this would help.

There are vibration sensors, some are MEMS, and some of these are not so expensive. Would need to find a way to connect to the pc.

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Seismic waves are partly reflected when they cross a boundary such as the between the solid mantle and the liquid outer core. Suppose a P wave has a constant speed of 8Km/s. 700 seconds after an earthquake near the surface, a seismograph at the site of the earthquake detect a reflected p wave . How far below the surface is the mantle-core boundary?

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What two items were invented during the industrial revolution?

Typewriter and Phonograph

Cell phone and First Computer

Seismograph and Porcelain

Eye glasses and Modern Surgery

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