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Earth science
Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.
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Earth science > Seismology 
amplification
Earth science; Seismology
An increase in seismic-signal amplitude within some range of frequency as waves propagate through different earth materials. The signal is both amplified and deamplified at the ...
tsunami earthquake
Earth science; Seismology
An earthquake with a relatively low magnitude that generates a large tsunami.
characteristic earthquake
Earth science; Seismology
An earthquake with a size and generating mechanism typical for a particular fault source.
seismic wave
Earth science; Seismology
An elastic wave in the Earth usually generated by an earthquake source or explosion.
seismic belt
Earth science; Seismology
An elongated earthquake zone, for example, circum-Pacific, Mediterranean, Rocky Mountain. About 60% of the world's earthquakes occur in the circum-Pacific seismic belt.
teleseism
Earth science; Seismology
An earthquake that is distant (usually more than 20 degrees) from the recording station.
preshock
Earth science; Seismology
An earthquake that occurs before the mainshock, but is not an unambiguous foreshock, either because it originated months or years before the mainshock or because it originated far ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)