West Coast/Alaska Tsunami Warning Center Seismometer Sites

TTA1 Seismic Site

TTA2 Seismic Site

TTA

Site Conditions: S-13 seismometer buried approximately 2 feet deep in unconsolidated, Cretaceous shale and sandstone. Instrument is housed in a double insulated vault and is digitized with a Nanometrics Trident digitizer and transmitted via VSAT to WC/ATWC. Site is located near radar site.