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Definition of Foreshock
1. Noun. A tremor preceding an earthquake.
Definition of Foreshock
1. Noun. (geology) A small earth tremor which precedes the mainshock in an earthquake event. Not all earthquakes have foreshocks. ¹
¹ Source: wiktionary.com
Definition of Foreshock
1. [n -S]
Lexicographical Neighbors of Foreshock
Literary usage of Foreshock
Below you will find example usage of this term as found in modern and/or classical literature:
1. Proceedings of Conference LXII, 8th Joint Meeting of the U. S. Japan by R. L. Wesson (1995)
"foreshock statistics appear very similar to that of aftershocks, ... Histograms of
the frequency of foreshock-mainshock pairs show rapid fall off of ..."
2. Science by American Association for the Advancement of Science (1883)
"The microfracturing marking the initial failure of the specimen would correspond
to foreshock activity and ultimate failure of the ..."
3. Bulletin of the Seismological Society of America by Seismological Society of America (1914)
"foreshock Phenomena ( ?): ... The mountain (Mauna Loa) has been giving symptoms
of uneasiness for some.weeks past. On Monday, the 8th ult. ..."
4. Improved Seismic Monitoring: Improved Decision-making : Assessing the Value by National Research Council (U. S.), Committee on Seismology and Geodynamics, National Academies Press (U.S.) (2006)
"The earthquake eventually occurred on September 28, 2004, 38 years after the
previous event, without any foreshock or other evident precursory phenomena. ..."
5. The Seismic Risk in the San Diego Region: Special Focus on the Rose Canyon edited by Glenn Roquemore (1997)
"foreshock, main shock, and larger aftershocks of the Borrego Mountain earthquake:
US Geological Survey Professional Paper 781, p. 16-23. Allen. CR. ..."
6. Klamath Falls, Oregon, Earthquakes on September 20, 1993 edited by Steven R. Brantley (1993)
"Preceded by a light foreshock at 8:16 PM, the principal earthquakes on September
20, 1993, shook a 130000-sq-km area of southern Oregon and northern ..."
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