MICROSEISMIC SENSORS
•Microseismic sensors record wave patterns caused by small movements within the mountain
•Source location of events has not been successful due to the highly fractured nature of the bedrock
Rockfall (April 24, 2005)
As indicated previously, the source location of events has not been successful at this time.  Interesting patterns have been observed that appear to be rock falls and the approximate location determined by the strength of the signal relative to the sensor locations.