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Minor Earth tremor
Answer for the clue "Minor Earth tremor ", 9 letters:
foreshock
Alternative clues for the word foreshock
Word definitions for foreshock in dictionaries
Wiktionary
Word definitions in Wiktionary
n. (context geology English) A small earth tremor which precedes the mainshock in an earthquake sequence. Not all mainshocks have foreshocks.
WordNet
Word definitions in WordNet
n. a tremor preceding an earthquake
Wikipedia
Word definitions in Wikipedia
A foreshock is an earthquake that occurs before a larger seismic event (the mainshock ) and is related to it in both time and space. The designation of an earthquake as foreshock , mainshock or aftershock is only possible after the full sequence of events ...
Usage examples of foreshock.
Abidan was shaking visibly, his real eye opened wide in near panic as a small foreshock rumbled through, shaking the set and causing a bank of lights to crash to the floor.
The foreshock was about ten minutes ahead of this one, hardly noticeable.
Electrical activity is up, helium emissions up, radon emissions up, foreshocks are occurring, though not directly within our nucleation zone.
Unlike most eruptions and earthquakes, these gave no time to study precursory phenomena such as foreshocks, groundwater fluctuations and changes in the behavior of domestic and wild animals.