SANTA BARBARA, Calif - California residents are no strangers to earthquakes but what is the science behind these destructive jolts of energy?
First, lets start with the way we measure the intensity of an earthquake. The Richter Scale or a logarithmic scale of numbers is used to identify the intensity of the shakes. The categories range from minor to major and the scale starts at zero and ends at a 10. The United States Geological Survey or USGS, leads the research in earthquake science. You may be aware of fault lines, or a fracture between two blocks of rock, when these fault lines move rapidly, an earthquake is caused. There are three types of fault lines: normal, reverse and strike slip faults.
The USGS states the difference between the type of faults can influence how a person feels the shaking. For instance, a strike slip fault occurs when horizontal movement is detected and may feel a side to side shift, where a normal and reverse fault, we measure the vertical movement of the ground. This may feel like an up and down motion as the shakes travel outward from the origin point. There are multiple large and small fault lines located throughout California. Earthquake safety is imperative as predictions can come only a few seconds before.
The science behind an earthquake News Channel 3-12.
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