SANTA RITA, Guam - At approximately 8:00 p.m. local time on March 11, 2011 USS Houston (SSN 713) and USS City of Corpus Christi (SSN 705) mooring lines broke free from the pier at Alpha wharf at Naval Base Guam due to the tsunami wave.

Tug boats from Naval Base Guam responded quickly to the situation and safely moored both submarines.

USS Frank Cable (AS 40) moored at Alpha wharf and USS Oklahoma City (SSN 723) remained safely moored throughout the tsunami event.

Local and Federal authorities have been notified.