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S Waves are like an elastic type of movement with waves

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amir a makeshift seismograph

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The Pacific Northwest Seismic Network, or PNSN, collects and studies ground motions from about 400 seismometers in the U.S. states of Oregon and Washington. PNSN monitors volcanic and tectonic activity, gives advice and information to the public and policy makers, and works to mitigate earthquake hazard.

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intensity is how strong something is and how much it can affect people buildings and the surroundings

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A seismic shadow zone is an area of the Earth's surface where seismographs can only barely detect an earthquake after its seismic waves have passed through the Earth.

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It is an area of the Earth's surface where seismographs can only barely detect an earthquake after its seismic waves have passed through the Earth.

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A machine that records the movement of the ground.

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an s wave a wave that moves kind of like an s and only travels is solids

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A P-wave or a primary wave is one of the two main types of elastic body waves

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P waves are Push and Pull waves that are very fast and can travel through solid and liquid but is faster in solids. P waves shake the ground by Pushing And Pulling it, and are Longitudinal.