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foreshock

NOUN
  1. a tremor preceding an earthquake

How To Use foreshock In A Sentence

  • There was a major tremor, magnitude 7.9, just two days ago - what now looks like a foreshock. Japan: The 'Big One' hit, but not where they thought it would
  • The time between the last foreshock and the mainshock varies somewhat, but is typically less than a day.
  • If the team's results are correct, then this swarm is probably not a foreshock of something larger on the Hayward Fault. Seismologist on What Berkeley Quakes Mean
  • From historical accounts, the epicenters of the foreshocks were located in central California near the northwestern extent of the main shock fault rupture.
  • Smaller aftershocks often accompany a large quake, and scientists say there is a small—and decreasing—chance that Tuesday's quake could actually be the foreshock to a bigger quake. Quakes Can Reach Farther On East Coast
  • Most people think of foreshocks as the small earthquakes that trigger a big quake.
  • Sensor data from the National Oceanic and Atmospheric Administration pinpointed the time and location of foreshocks and earthquakes.
  • A magnitude 6.7 temblor on Oct. 23 is now considered a foreshock.
  • Signal shock and precursory earthquake swarm and foreshock activities always accompany the anomalous space-time patterns of seismic'ty.
  • It apparently occurred without any significant foreshocks.
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