This is why a newline in character encoding can be defined as LF and CR combined into one (LF+CR, LFCR, CR+LF, CRLF). Two ways to view newlines, both of which have valid internal logic, are that newlines terminate lines or that they separate lines.
Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don't just slide smoothly; the rocks catch on each other. The rocks are still pushing against each other, but not moving.
But first, a quick review of the different types of seismic waves. Analysis of the Earthâs internal structure is made possible because earthquakes produce vibrations called seismic waves. These waves travel through the interior of the Earth and can be measured with sensitive detectors called seismographs.