West Coast/Alaska Tsunami Warning Center Seismometer Sites





SDN

Site Conditions: S-13 and GeoTech 7505A seismometers placed in a seismic vault. The vault is built on Tertiary andesite. The vault was built by the Lamont-Doherty Observatory.

A new site was installed a few kilometers from this site in 10/2001. This site is called SDPT and is also listed in the WC/ATWC site list.