BORG JTS MA2 GNI ARU SHEL KMBO KURK OBN SJG ADK MIDW PAYG OTAV SNZO BILL ASCN PTGA CASY

TSUM WRAB NIL BRVK CMLA HNR TLY RCBR KDAK JOHN AAK TIXI MSKU KAPI RAO PTCN MBAR RPN KIV KWAJ ESK ABKT TEIG LVZ FFC TATO AFI NRIL RAYN LVC HOPE COCO HAI LSA CHTO WAKE SSE QSPA DGAR CTAO MTDJ ENH KBL PALK POHA BFO PET GRGR TRIS GUMO MBWA YSS DWPF

TRIS XMAS FUNA KBS KONO KOWA PMG MSEY HNR MACI SDDR ERM PMSA BJT BBSR SDV LSZ COLA WMQ ALE TGUH SAML ANWB

EFI XAN KIP PFO SUR MDJ KMI DAV ABPO GLOBAL SEISMOGRAPHIC NETWORK YAK TAU SACV MSVF IN PICTURES CCM QIZ INCN NNA SLBS LCO ANMO HRV TUC ULN WCI WVT TARA SSPA MAKZ COR BCIP

PAB GRFO FURI OTAV ANTO KNTN RSSD GRTK RAR HKT MAJO KIEV SFJD SBA BBGH NWAO KEV

AAK Ala Archa, Kyrgyzstan BJT Baijiatuan, Beijing, China DWPF Disney Wilderness Preserve Florida, USA HKT Hockley, Texas, USA KMBO Kilima Mbogo, Kenya MAKZ Makanchi, Kazakhstan OTAV Otavalo, Ecuador RAR Rarotonga, Cook Islands SSPA Standing Stone, Pennsylvania, USA VNDA Lake Vanda, Antarctica ABKT Alibek, Turkmenistan BORG Borgarfjordur, Iceland EFI Mount Kent, Falkland Islands HNR Honiara, Solomon Islands KMI Kunming, China MBAR Mbarara, Uganda PAB San Pablo, Spain RAYN Ar Rayn, Saudi Arabia SUR Sutherland, South Africa WAKE Wake Atoll, Pacific, USA ABPO Ambohimpanompo, Madagascar BRVK Borovoye, Kazakhstan ENH Enshi, China HOPE Hope Point, South Georgia Island KNTN Kanton, Republic of Kiribati MBWA Marble Bar, Australia PALK Pallekele, Sri Lanka RCBR Riachuelo, Brazil TARA Tarawa Island, Republic of Kiribati WCI Wyandotte Cave, Indiana, USA ADK Adak Island, Alaska, USA BTDF Bukit Timah Dairy Farm, Singapore ERM Erimo, Japan HRV Harvard, Massachusetts KONO Kongsberg, Norway MCQ MacQuarie Island, Australia PASC Pasadena, California, USA RPN Rapa Nui (Easter Island), Chile TATO Taipei, Taiwan WMQ Urumqi, China AFI Afiamalu, Samoa CASY Casey Station, Antarctica ESK Eskdalemuir, Scotland ILAR Eielson Array, Alaska, USA KOWA Kowa, Mali MDJ Mudanjiang, China PAYG Puerto Ayora, Galapagos Islands RSSD Black Hills, South Dakota TAU Hobart, Tasmania, Australia WRAB Tennant Creek, Australia ALE Alert, Canada CCM Catherdral Caves, Missouri, USA FFC Flin Flon, Canada INCN Inchon, Rupublic of Korea KURK Kurchatov, Kazakhstan MIDW Midway Atoll, USA PDAR Pinedale Array, Wyoming, USA SACV Santiago Island, Cape Verde TEIG Tepich, Yucatan, Mexico WVT Waverly, Tennessee, USA ANMO Albuquerque, New Mexico, USA CHTO Chiang Mai, Thailand FUNA Funafuti, Tuvalu JOHN Johnston Atoll, USA KWAJ Kwajalein Atoll, Pacific Ocean MSEY Mahe, Seychelles PET Petropavlosk, Russia SAML Samuel Dam, Brazil TGUH Tegucigalpa, Honduras XAN Xian, China ANTO Ankara, Turkey CMB Columbia, California, USA FURI Mt Furi, Ethiopia JTS Las Juntas de Abangares, Costa Rica LBTB Lobatse, Botswana MSKU Masuku, Gabon PFO Pinon Flat, California, USA SBA Scott Base, Antarctica TIXI Tiksi, Russia XMAS Kiritimati Island (Christmas Island), ANWB Willy Bob, Antigua and Barbuda CMLA Cha de Macela, Azores GNI Garni, Armenia KAPI Kappang, Sulawesi, Indonesia LCO Las Campanas Observatory, Chile MSVF Monasavu, Fiji PMG Port Moresby, Papua New Guinea SDDR Presa de Sabenta, Dominican Republic TLY Talaya, Russia Republic of Kiribati ARU Arti, Russia COCO Cocos (Keeling) Island, Australia GRFO Grafenberg, Germany KBL Kabul, Afghanistan LSA Lhasa, Tibet, China MTDJ Mount Denham, Jamaica PMSA Palmer Station, Antarctica SDV Santo Domingo, Venezuela TRIS Tristan da Cunha, South Atlantic YAK Yakutsk, Russia ASCN Ascension Island, Atlantic COLA College Observatory, Alaska, USA GRGR Grenville, Grenada KBS Ny-Alesund, Spitzbergen, Norway LSZ Lusaka, Zambia NIL Nilore, Pakistan POHA Pohakuloa, Hawaii, USA SFJD Kangerlussuaq, Greenland TRQA Tornquist, Argentina YSS Yuzhno Sakhalinsk, Russia BBGH Gun Hill, Barbados COR Corvalis, Oregon, USA GRTK Grand Turk, Turks and Caicos Islands KDAK Kodian Island, Alaska, USA LVC Limon Verde, Chile NNA Nana, Peru PTCN Pitcairn Island, South Pacific SHEL Horse Pasture, St Helena Island TSUM Tsumeb, Namibia BBSR Bermuda, Biol Sta Res, Bermuda CTAO Charters Towers, Australia GTBY Guantanamo Bay, Cuba KEV Kevo, Finland LVZ Lovozero, Russia NRIL Norilsk, Russia PTGA Pitinga, Brazil SJG San Juan, Puerto Rico TUC Tucson, Arizona, USA BCIP Isla Barro Colorado, Panama DAV Davao, Philippines GUMO Guam, Mariana Islands KIEV Kiev, Ukraine MA2 Magadan, Russia NVAR Mina Array, Nevada, USA QIZ Qiongzhong, China SLBS Sierra La Laguna Baja California Sur, Mexico TXAR Lajitas Array, Texas, USA BFO Black Forest Observatory, Germany DGAR Diego Garcia, Chagos Islands, British Indian HIA Hailar, China KIP Kipapa Gulch, Hawaii, USA MACI Morro De La Arena, Canary Islands NWAO Narrogin, Australia QSPA South Pole, Antarctica SNZO South Karori, New Zealand ULN Ulaanbaatar, Mongolia BILL Bilibino, Russia Ocean Territory HKPS Po Shan, Hong Kong KIV Kislovodsk, Russia MAJO Matsushiro, Japan OBN Obninsk, Russia RAO Raoul Island, Kermadec Islands, New Zealand SSE Shanghai, China UOSS Sharjah, United Arab Emirates