Microearthquake Network in Kansas

Microearthquake Seismology and Seismotectonics of South Asia

“…One way to reduce cultural noise is to place the seismometers at some depth. For example, Steeples (1979) placed seismometers in steel cased boreholes, 50-60 m deep, for a telemetered network, which reduced the cultural noises like those of vehicle and livestock by as much as 10 db. Takahashi and Hamada (1975) have described the results of placing seismometers in deep boreholes in the vicinity of Tokyo.…”