The Central Virginia Seismic Zone is an example of a transverse seismic zone exhibiting a low level of activity. To investigate what level of microseismicity would be associated with such a zone, some 2200 low-noise hours of data were collected at 26 different locations throughout the zone. This monitoring program, complete down to about zero magnitude, recorded several definite and four probable microearthquakes. This low rate of occurrence of one event every eight days seems to be in accord with the area's macroseismicity (M>3) over the past 45 years.
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