Six new GSN sites have been installed since the last Newsletter. In addition, BFO, Black Forest Observatory, has joined the GSN as a new Affiliate Station. IRIS/USGS teams (Albuquerque Seismological Laboratory) have completed new installations in Mexico, China, Chile, and the South Pacific. TEIG, Tepich, Yucatan, Mexico is a cooperative joint station with the Mexican National Seismic Network (MNSN). MDJ, Mudanjiang, China is a cooperative joint station with the New Chinese Seismographic Network (NCDSN). LVC, Limon Verde, Chile is a cooperative joint station with the Germany's GEOFOrschungsNetz (GEOFON). PTCN, Pitcairn Island is a cooperative joint station with the Japan's Science and Technology Agency. IRIS/IDA (University of California, San Diego) teams have completed new installations at HOPE, South Georgia Island in the South Atlantic, and COCO, Cocos Keeling Island in the Indian Ocean.