from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A minor tremor of the earth that precedes a larger earthquake originating at approximately the same location.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small earth tremor which precedes the mainshock in an earthquake sequence. Not all mainshocks have foreshocks.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a tremor preceding an earthquake
If the team's results are correct, then this swarm is probably not a foreshock of something larger on the Hayward Fault.
When we get a swarm like the one in Berkeley, it doesn't come with a tag that says it is a foreshock.
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.
The post-Lehman banking crisis could yet prove to have been just the foreshock.
There was a major tremor, magnitude 7.9, just two days ago - what now looks like a foreshock.
A foreshock to Thursday's earthquake occurred in April 2009, when the stock of Dendreon
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.
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.
It would be bigger than the original quake, then the original quake would be a foreshock rather than the aftershock.
There are Surfadelic bands, Kahuna Air has stews as characters, there is even a great island struggling to be born - almost a foreshock to the island Chipco's facility is located on being stamped down in Vineland.
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