Seven signals are recorded on helicorders. Broadband data are digitally recorded at 50 sps with 24 bit resolution and stored on tape. A direct link to the NSN data does not exist. Triggered events are examined daily or when a felt event occurs. Other regional network operators are contacted and the combined data set is used to provide a location and magnitude.
Emergency management is notified as soon as possible following a felt event.
This mode of data analysis will be modified after the USGS earthworm is installed. Recorded arrival times are sent to Virginia Tech and incorporated in the annual Southeastern United States Seismic Network Bulletin. Locations and magnitudes for felt events are made available as soon as possible via personal contact. Again, this will be modifies after the USGS earthworm is installed. The MacCarthy Laboratory is involved in an extensive outreach program for K-12 and college groups.