microseism microsection • microseismic · · · Info · Definitions · Synonyms · Characters · · microseism · · Text Latin · · Script 10 · · Length Definitions · · · (noun) a small earthquake. Synonyms: tremor, earth tremor. · · Noun Definition 1 Synonyms · · · tremor · · Synonym 1 earth tremor · · Synonym 2 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073