News In Brief

US may use seismic sensors off USSR to note A-blasts

The United States may establish a network of underwater seismic stations off the northern coast of the Soviet Union to detect clandestine nuclear blasts, a leading defense magazine reported today.

Jane's Defense Weekly, usually reliable on military matters, said a test to determine the sensitivity of the necessary instruments was carried out last year and was successful.

The magazine said the work was part of a program to improve US capability to detect Soviet violations of the unratified nuclear test ban treaty.