microseismicadj.
/ˌmʌɪkrə(ʊ)ˈsʌɪzmɪk/, U.S. /ˈˌmaɪkrəˈsaɪzmɪk/ Geology.
Of, relating to, or of the nature of a microseism. Also: designating or relating to those effects of an earthquake measured by instruments.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > convulsion > [adjective] > earthquake > tremor
microseismic1877
microseismical1886
1877 Eng. Mechanic 10 Aug. 533/3 More than 20,000 microseismic observations, made from 1870 to 1875.
1886 J. Milne Earthquakes xix. 316 The most satisfactory observations which have been made upon microseismic disturbances are those which have been made during the last ten years in Italy.
1934 Geophysical Mem. No. 62. 17 The microseismic distribution cannot be obtained directly from the tabulated amplitudes.
1934 Geophysical Mem. No. 62. 17 Gutenberg considers the ratio..in a number of microseismic storms.
1972 Gloss. Geol. (Amer. Geol. Inst.) 452/2 Microseismic data, earthquake measurement or observation by instrumental means, as opposed to macroseismic observations. The term is not to be confused with the connotation of the term microseism.
1973 Sci. Amer. Apr. 31/1 It was a great thrill when we scanned along a seismogram made at Jamestown of an explosion on Novaya Zemlya and there—Eureka!—at the travel time predicted for a wave reflected seven times was an unmistakable tiny pulse nestling in the valley of microseismic background noise.
1990 P. Kearey & F. J. Vine Global Tectonics iii. 54 After burial, when the sediment is in a wet slurry state, the magnetic particles realign with the geomagnetic field as a result of microseismic activity.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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adj.1877