How To Use Foreshock In A Sentence
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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
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The time between the last foreshock and the mainshock varies somewhat, but is typically less than a day.
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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
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From historical accounts, the epicenters of the foreshocks were located in central California near the northwestern extent of the main shock fault rupture.
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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
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Most people think of foreshocks as the small earthquakes that trigger a big quake.
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Sensor data from the National Oceanic and Atmospheric Administration pinpointed the time and location of foreshocks and earthquakes.
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A magnitude 6.7 temblor on Oct. 23 is now considered a foreshock.
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Signal shock and precursory earthquake swarm and foreshock activities always accompany the anomalous space-time patterns of seismic'ty.
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It apparently occurred without any significant foreshocks.
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This was the second major earthquake along this portion of the fault in less than two weeks - a magnitude 6.7 earthquake occurred a few miles to the west on October 23 and is now believed to be a foreshock of Sunday's massive quake.
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With the second model, accelerating fault slip on the mainshock nucleation zone triggers foreshocks.
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We are expecting the appearance in the world of the second example of the successful impending prediction of a strong earthquake based on sequential foreshock activity.
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Michael said it might help warn of a large impending earthquake by detecting foreshocks.
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A foreshock to Thursday's earthquake occurred in April 2009, when the stock of Dendreon
How The Dow's Dramatic Plunge Could Have Been Prevented
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AGU is hosting a press conference on the 7.9 Denali earthquake that occurred on Nov. 3, 2002, in Alaska, as well as its Oct. 23, 2002, foreshock of 6.7.
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The study, reported in today's Nature, is the first to suggest that small seismic shocks or foreshocks preceding a major earthquake can be used in some cases to predict the main tremors.
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When we get a swarm like the one in Berkeley, it doesn't come with a tag that says it is a foreshock.
Seismologist on What Berkeley Quakes Mean
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Even in areas where foreshocks are fairly common, there is no way of distinguishing a foreshock from an independent earthquake.
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It was later discovered, though, that a rare series of small tremors, called foreshocks, occurred before the large quake hit the city.
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It was later discovered, though, that a rare series of small tremors, called foreshocks, occurred before the large quake hit the city.
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Some have foreshocks signalling what is to come - but, as those so rudely awakened last night know only too well, others do not.
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Probably the most spectacular example was the short-term prediction of the 1975, M 7.3, Haicheng earthquake by the Chinese, based on earthquake foreshocks, unusual animal behaviour, and a few other precursors.
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At almost precisely 5: 12 a.m., local time, a foreshock occurred with sufficient force to be felt widely throughout the San Francisco Bay area.
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The post-Lehman banking crisis could yet prove to have been just the foreshock.
Choice for EU: Bail Out Greece or Bail Your Banks
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The short-term prediction was possible primarily on a series of foreshocks that began four days prior to the main shock.
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Unfortunately, foreshocks are just like any other small earthquake.
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Occasionally there will be foreshocks, but unfortunately, we never really know when a smaller earthquake is a foreshock and when it isn't, and as far as I know we really didn't have any particular warning for this earthquake.
CNN Transcript Jan 12, 2010
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Michael said it might help warn of a large impending earthquake by detecting foreshocks.
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As others have concluded, the foreshock sequence (Fig. 7) was the most important evidence used in the imminent prediction of the Haicheng earthquake. ......
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It would be bigger than the original quake, then the original quake would be a foreshock rather than the aftershock.
CNN Transcript Jan 12, 2010
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The occurrence of foreshocks and aftershocks can be attributed to the nonconservative character of the Olami-Feder-Christensen model.
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These maps graphically illustrate the change in earthquake probability during aftershock and possible foreshock sequences.
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It has been longer than that, so now we believe the 7.0 was the major quake and not a foreshock, thanks goodness, to a larger quake.
CNN Transcript Jan 12, 2010
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The rate of main shocks after foreshocks follows the same patterns as aftershocks after main shocks.
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Scientists are still studying foreshocks carefully to see if they can alert us to a possible bigger earthquake.
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A maximum probability gain of more than 20,000 is obtained if there are two or more foreshocks.
