AAE Addis Ababa, Ethiopia ABKT Alibek, Turkmenistan ADK Adak, Alaska AFI Afiamalu, Western Samoa ALQ Albuquerque, New Mexico ANMO Albuquerque, New Mexico ANTO Ankara, Turkey APAES Apatity Array, Russia APL Alpnach, Switzerland AQU L'Aquila, Italy ARCES ARCESS Array, Norway ARMA Armidale, Australia ARU Arti, Russia ASAR Alice Springs Array, Australia ASCN Ascension Island ASPA Alice Springs, Australia BBB Bella Bella, Canada BDFB Brasilia, Brazil BFO Black Forest, Germany BGCA Bogoin, Central African Republic BGIO Bar Giyora, Israel BGY Beograd, Yugoslavia BJT Baijiatuan, China BLA Blacksburg, Virginia BORG Borgarfjordur, Iceland BOSA Boshof, South Africa BRAR Belbasi Array, Turkey BRG Berggiesshuebel, Germany BRNL Berlin, Germany BUG Bochum, Germany CBB Campbell River, Canada CCM Cathedral Cave, Missouri CFA Coronel Fontana, Argentina CHTO Chiang Mai, Thailand CLL Collm, Germany CLZ Clausthal, Germany CMAR Chiang Mai Array, Thailand COL College, Alaska COR Corvallis, Oregon CPUP Villa Florida, Paraguay CSY Casey Station, Antarctica CTA Charters Towers, Australia CTAO Charters Towers, Australia DAV Davao, Philippines DAVOS Davos, Switzerland DAWY Dawson City, Canada DBIC Dimbroko, Ivory Coast DLBC Dease Lake, Canada DRLN Deer Lake, Canada DUG Dugway, Utah EDM Edmonton, Canada EEO Eldee, Canada EIL Eilat, Israel EKA Eskdalemuir Array, Scotland ELK Elko, Nevada ESDC Sonseca Array, Spain ESK Eskdalemuir, Scotland ETH Zurich, Switzerland EYMN Ely, Minnesota FCC Fort Churchill, Canada FINES FINESS Array, Finland FITZ Fitzroy Crossing, Australia FORT Forrest, Australia FRB Iqaluit, Canada FUR Fuerstenfeldbruck, Germany GAC Glen Almond, Canada GERES GERESS Array, Germany GNI Garni, Armenia GRFO Grafenberg, Germany GUMO Guam, Marianas Islands HAM Hamburg, Germany HFS Hagfors Array, Sweden HGN Heimansgroeve, The Netherlands HIA Hailar, China HNR Honiara, Solomon Islands HRV Harvard, Massachusetts ILAR Eielson Array, Alaska INK Inuvik, Canada ISG Ishigaki-jima, Japan JER Jerusalem, Israel JTS Las Juntas de Abangares, Costa Rica KAF Kangasniemi Station, Finland KBZ Khabaz, Russia KDAK Kodiak Island, Alaska, USA KEV Kevo, Finland KIEV Kiev, Ukraine KIP Kipapa, Hawaii KIV Kislovodsk, Russia KKJ Kaminokuni, Japan KONO Kongsberg, Norway KSAR Wonju Array, South Korea KVAR Kislovodsk Array, Russia LBNH Lisbon, New Hampshire LBTB Lobatse, Botswana LMN Caledonia Mountain, Canada LMQ La Malbaie, Canada LOR Lormes, France LPAZ La Paz, Bolivia LSZ Lusaka, Zambia MAJO Matsushiro, Japan MAW Mawson, Antarctica MBC Mould Bay, Canada MEEK Meekathara, Australia MIAR Mount Ida, Arkansas MJAR Matsushiro Array, Japan MLR Muntele Rosu, Romania MNV Mina, Nevada MOBC Moresby Island, Canada MOX Moxa, Germany MSEY Mahe, Seychelles MYNC Murphy, North Carolina NEW Newport, Washington NIL Nilore, Pakistan NNA Nana, Peru NOA NORSAR Array, Norway NORES NORESS Array, Norway NPO North Pole, Alaska NRI Norilsk, Russia NWAO Narrogin, Australia OBN Obninsk, Russia OGS Ogasawara, Japan OXF Oxford, Mississippi PAB San Pablo, Spain PARD Parod, Israel PDAR Pinedale Array, Wyoming PDY Peleduy, Russia PFO Pinon Flat, California PGC Pacific Geoscience Centre, Canada PLCA Paso Flores, Argentina PMB Pemberton, Canada PMG Port Moresby, New Guinea PNT Penticton, Canada PSZ Piszkes, Hungary PTGA Pitinga, Brazil QIS Mt Isa, Australia RAR Rarotonga, Cook Islands RES Resolute Bay, Canada RMQ Roma, Australia ROSC El Rosal, Colombia RPN Rapanui, Easter Island RSSD Black Hills, South Dakota SADO Sadowa, Canada SCHQ Schefferville, Canada SDV Santo Domingo, Venezuela SFJ Sondre Stromfjord, Greenland SHK Shiraki, Japan SJG San Juan, Puerto Rico SNZO South Karori, New Zealand SPITS Spitsbergen Array, Norway STKA Stephens Creek, Australia SUR Sutherland, South Africa TATO Taipei, Taiwan TBO Thunder Bay, Canada TBT Taburiente, Canary Islands TKL Tuckaleechee Caverns, Tennessee TNS Taunus, Germany TOO Toolangi, Australia TSK Tsukuba, Japan TSUM Tsumeb, Namibia TUC Tucson, Arizona TUL Tulsa, Oklahoma TXAR TXAR Array, Texas ULM Lac du Bonnet, Canada ULN Ulaanbaatar, Mongolia USK Ussuriysk, Russia USSALQ Albuquerque, New Mexico USSPLY Peleduy, Russia VAF Ylistaro Station, Finland VIB Van Inlet, Canada VNDA Vanda, Antarctica VRAC Vranov, Czech Republic VSL Villasalto, Italy VTS Vitosha, Bulgaria WALA Waterton Lakes, Canada WARB Warburton, Australia WET Wetzell, Germany WHY Whitehorse, Canada WOL Wolverton, England WOOL Woolibar, Australia WRA Warramunga Array, Australia YAK Yakutsk, Russia YKA Yellowknife Array, Canada YKW Yellowknife, Canada YOU Young, Australia ZAL Zalesovo, Russia