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  2. What causes earthquakes? The science behind why seismic ... - AOL

    www.aol.com/news/causes-earthquakes-science...

    Earthquakes are common on the West Coast, with multiple plate boundaries like the San Andreas fault making geologic activity more likely. They are rarer on the East Coast, but they do happen .

  3. Earthquake - Wikipedia

    en.wikipedia.org/wiki/Earthquake

    An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves.Earthquakes may also be referred to as quakes, tremors, or temblors.

  4. Seismic wave - Wikipedia

    en.wikipedia.org/wiki/Seismic_wave

    Earthquakes create distinct types of waves with different velocities. When recorded by a seismic observatory, their different travel times help scientists locate the quake's hypocenter. In geophysics, the refraction or reflection of seismic waves is used for research into Earth's internal structure. Scientists sometimes generate and measure ...

  5. Quake (natural phenomenon) - Wikipedia

    en.wikipedia.org/wiki/Quake_(natural_phenomenon)

    An earthquake is a phenomenon that results from the sudden release of stored energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes may manifest themselves by a shaking or displacement of the ground and sometimes cause tsunamis, which may lead to loss of life and destruction of property. An earthquake is ...

  6. Earthquakes happen all the time, you just can't feel them. A ...

    www.aol.com/earthquakes-happen-time-just-cant...

    About 55 earthquakes a day – 20,000 a year – are recorded by the National Earthquake Information Center. Most are tiny and barely noticed by people living where they happen.

  7. Why do earthquakes happen? - AOL

    www.aol.com/why-earthquakes-happen-194636047.html

    Turkey is reeling after being hit by two powerful earthquakes in quick succession on Monday morning.. The first, the worst to strike the country since the Erzincan quake of 1939, measured 7.8 on ...

  8. P wave - Wikipedia

    en.wikipedia.org/wiki/P_wave

    Typical values for P wave velocity in earthquakes are in the range 5 to 8 km/s. The precise speed varies according to the region of the Earth's interior, from less than 6 km/s in the Earth's crust to 13.5 km/s in the lower mantle, and 11 km/s through the inner core. [6]

  9. Why do earthquakes happen? - AOL

    www.aol.com/news/causes-earthquake-natural...

    Movement of tectonic plates against each other sends seismic waves rippling across earth’s surface