21.   There is also no reason to believe that earthquakes are occurring unusually often.

22.   Twelve large earthquakes have occurred along the fault from east to west, marching toward Istanbul.

23.   When these plates collide, scrape or dive past one another, earthquakes occur.

24.   Local officials and scientists have been trying to create awareness about safety measures and regular demonstrations are given to residents about how they should react if an earthquake occurs.

25.   Such drills are taken particularly seriously in Tokyo, where experts warn a major earthquake could occur at any time.

26.   That makes for a much shallower focal point when earthquakes do occur and more violent shaking on the ground, Miyata said.

27.   The earthquake occurred in a remote area where several other earthquakes have occurred in the past year, said Waverly Person, a geophysicist at the center.

28.   The Turkey earthquake occurred along a strike-slip fault, similar to the San Andreas fault that runs beneath California.

29.   A major earthquake could occur in Tokyo Bay in the near future following the long absence of seismic activity in the area, a seismologist warned Saturday.

30.   Earthquakes have occurred regularly throughout history, often taking a massive toll in human life.