•Two subsurface
seismic sensors
were installed in a borehole
drilled in 2004 on
South Peak
•Measurements from
these instruments complement
data from the surface-based
system
To compliment the surface
microseismic array, two sensors were installed in a borehole drilled on the
west side of South Peak.The bedrock
was so highly fractured that the sensors were located too near the surface to
provide information on deeper microseimicity.
