Heliplots

These data update automatically every 30 minutes

Last update: April 20, 2026 14:35:04 UTC

Seismograms may take several moments to load. Click on a plot to see larger image.

CU/ANWB North Barbuda Island
CU/BBGH Gun Hill, Barbados
CU/BCIP Isla Barro Colorado, Panama
CU/GRGR Grenville, Grenada
CU/GRTK Grand Turk, Turks and Caicos Islands
CU/GTBY Guantanamo Bay, Cuba
CU/MTDJ Mount Denham, Jamaica
CU/SDDR Presa de Sabenta, Dominican Republic
CU/TGUH Tegucigalpa, Honduras
GT/BDFB Brasilia, Distrito Federal, Brazil
GT/BOSA Boshof, South Africa
GT/CPUP Villa Florida, Paraguay
GT/DBIC Dimbokro, Ivory Coast
GT/LBTB Lobatse, Botswana
GT/LPAZ La Paz, Bolivia
GT/PLCA Paso Flores, Argentina
GT/VNDA Dry Valley, Vanda, Antarctica
IC/BJT Baijiatuan, Beijing, China
IC/ENH Enshi, Hubei Province, China
IC/HIA Hailar, Neimenggu Autonomous Region, China
IC/KMI Kunming, Yunnan Province, China
IC/LSA Tibet, China
IC/MDJ Mudanjiang, Heilongjiang Province, China
IC/QIZ Qiongzhong, Hainan Province, China
IC/SSE Shanghai, China
IC/WMQ Urumqi, Xinjiang Province, China
IC/XAN Xi'an, China
II/AAK Ala Archa, Kyrgyzstan
II/ABPO Ambohimpanompo, Madagascar
II/ALE Alert, NU, Canada
II/ARTI Arti, Russia
II/ASCN Butt Crater, Ascension Island
II/BFO Black Forest Observatory, Schiltach, Germany
II/BORG Borgarfjordur, Asbjarnarstadir, Iceland
II/BORK Burabay, Kazakhstan
II/CMLA Cha de Macela, Sao Miguel Island, Azores
II/COCO West Island, Cocos (Keeling) Islands
II/DGAR Diego Garcia, Chagos Islands, Indian Ocean
II/EFI Mount Kent, East Falkland Island
II/ERM Erimo, Hokkaido Island, Japan
II/ESK Eskdalemuir, Scotland, UK
II/FFC Flin Flon, Canada
II/HOPE Hope Point, South Georgia Island
II/JTS Las Juntas de Abangares, Costa Rica
II/JZAX Jizzax, Uzbekistan
II/KAPI Kappang, Sulawesi, Indonesia
II/KDAK Kodiak Island, Alaska, USA
II/KIV Kislovodsk, Russia
II/KURK Kurchatov, Kazakhstan
II/KWJN Gagan, Kwajalein Atoll, Marshall Islands
II/LVZ Lovozero, Russia
II/MBAR Mbarara, Uganda
II/MSEY Mahe, Seychelles
II/MSVF Monasavu, Fiji
II/NIL Nilore, Pakistan
II/NNA Nana, Peru
II/OBN Obninsk, Russia
II/PALK Pallekele, Sri Lanka
II/PFO Pinon Flat, California, USA
II/RAYN Ar Rayn, Saudi Arabia
II/RPN Rapanui, Easter Island, Chile
II/SACV Santiago Island, Cape Verde
II/SHEL Horse Pasture, St. Helena Island
II/SIMI Simiganj, Tajikistan
II/SUR Sutherland, South Africa
II/TAU Hobart, Tasmania, Australia
II/TLY Talaya, Russia
II/UOSS Univ. of Sharjah, Sharjah, United Arab Emirates
II/WRAB Tennant Creek, NT, Australia
II/XBFO Black Forest Observatory, Schiltach, Germany
II/XPFO Pinon Flat, California, USA
IU/ADK Adak, Aleutian Islands, Alaska
IU/AFI Afiamalu, Samoa
IU/ANMO Albuquerque, New Mexico, USA
IU/ANTO Ankara, Turkey
IU/BBSR Bermuda Institute of Ocean Sciences, St George's Bermuda
IU/BILL Bilibino, Russia
IU/CASY Casey, Antarctica
IU/CCM Cathedral Cave, Missouri, USA
IU/CHTO Chiang Mai, Thailand
IU/COLA College Outpost, Alaska, USA
IU/COR Corvallis, Oregon, USA
IU/CTAO Charters Towers, Australia
IU/DAV Davao, Philippines
IU/DWPF Disney Wilderness Preserve, Florida, USA
IU/FUNA Funafuti, Tuvalu
IU/FURI Mt. Furi, Ethiopia
IU/GNI Garni, Armenia
IU/GRFO Grafenberg, Germany
IU/GUMO Guam, Mariana Islands
IU/HKT Hockley1 Texas
IU/HNR Honiara, Solomon Islands
IU/HRV Adam Dziewonski Observatory (Oak Ridge), Massachusetts, USA
IU/INCN Inchon, Republic of Korea
IU/JOHN Johnston Island, USA
IU/KBS Ny-Alesund, Spitzbergen, Norway
IU/KEV Kevo, Finland
IU/KIEV Kiev, Ukraine
IU/KIP Kipapa, Hawaii, USA
IU/KMBO Kilima Mbogo, Kenya
IU/KNTN Kanton, Kiritibati
IU/KONO Kongsberg, Norway
IU/LCO Las Campanas Astronomical Observatory, Chile
IU/LSZ Lusaka, Zambia
IU/MA2 Magadan, Russia
IU/MACI Morro de la Arena, Canary Islands
IU/MAJO Matsushiro, Japan
IU/MAKZ Makanchi, Kazakhstan
IU/MBWA Marble Bar, Western Australia
IU/MIDW Midway Island, USA
IU/NWAO Narrogin, Australia
IU/OTAV Otavalo, Ecuador
IU/PAB San Pablo, Spain
IU/PAYG Puerto Ayora, Galapagos Islands
IU/PET Petropavlovsk, Russia
IU/PMG Port Moresby, New Guinea
IU/PMSA Palmer Station, Antarctica
IU/POHA Pohakuloa, Hawaii, USA
IU/PTCN Pitcairn Island, South Pacific
IU/QSPA South Pole Remote Earth Science Observatory (Quiet Zone)
IU/RAO Raoul, Kermadec Islands
IU/RAR Rarotonga, Cook Islands
IU/RCBR Riachuelo, Brazil
IU/RSSD Black Hills, South Dakota, USA
IU/SAML Samuel, Brazil
IU/SBA Scott Base, Antarctica
IU/SDV Santo Domingo, Venezuela
IU/SFJD Sondre Stromfjord, Greenland
IU/SJG San Juan, Puerto Rico
IU/SLBS Sierra la Laguna Baja California Sur, Mexico
IU/SNZO South Karori, New Zealand
IU/SSPA Standing Stone, Pennsylvania
IU/TARA Tarawa Island, Republic of Kiribati
IU/TATO Taipei, Taiwan
IU/TEIG Tepich, Yucatan, Mexico
IU/TIXI Tiksi, Russia
IU/TRIS Tristan da Cunha
IU/TRQA Tornquist, Argentina
IU/TSUM Tsumeb, Namibia
IU/TUC Tucson, Arizona
IU/ULN Ulaanbaatar, Mongolia
IU/WAKE Wake Island
IU/WCI Wyandotte Cave, Indiana, USA
IU/WVT Waverly, Tennessee, USA
IU/XMAS Kiritimati Island, Republic of Kiribati
IU/YAK Yakutsk, Russia
IU/YSS Yuzhno Sakhalinsk, Russia
IW/DLMT Dillon, Montana, USA
IW/FLWY Flagg Ranch, Wyoming, USA
IW/FXWY Fox Creek, Wyoming, USA
IW/IMW Indian Meadow, Wyoming, USA
IW/LOHW Long Hollow, Wyoming USA
IW/MFID Near Browns Crk and Slater Flat Rd, Idaho, USA
IW/MOOW Moose Ponds, Wyoming, USA
IW/PLID Pearl Lake, Idaho, USA
IW/SNOW Snow King Mountain, Wyoming, USA
IW/TPAW Teton Pass, Wyoming, USA
NE/BCX Chestnut Hill, MA, USA
NE/EMMW Machias, ME, USA
NE/HNH Hanover, NH, USA
NE/TRY Troy, NY, USA
NE/VT1 Waterbury, VT
NE/WES Weston Observatory, Weston, MA, USA
NE/WSPT Westport, CT, USA
NE/WVL Waterville, ME, USA
US/AAM Ann Arbor, Michigan, USA
US/ACSO Alum Creek State Park, Ohio, USA
US/AGMN Agassiz National Wildlife Refuge, Minnesota, USA
US/AHID Auburn Hatchery, Idaho, USA
US/AMTX Amarillo, Texas, USA
US/BINY Binghamton, New York, USA
US/BLA Blacksburg, Virginia, USA
US/BMO Blue Mountains Array (Baker), Oregon, USA
US/BOZ Bozeman, Montana, USA
US/BRAL Brewton, Alabama, USA
US/BW06 Boulder Array Site 6 (Pinedale Array Site 6), Wyoming, USA
US/CBKS Cedar Bluff, Kansas, USA
US/CBN Corbin (Fredericksburg Observatory), Virginia, USA
US/DGMT Dagmar, Montana, USA
US/DUG Dugway, Tooele County, Utah, USA
US/ECSD EROS Data Center, Sioux Falls, South Dakota, USA
US/EGAK Eagle, Central Alaska, Alaska, USA
US/EGMT Eagleton, Montana, USA
US/ELK Elko, Nevada, USA
US/ERPA Erie, Pennsylvania, USA
US/EYMN Ely, Minnesota, USA
US/GLMI Grayling, Michigan, USA
US/GOGA Godfrey, Georgia, USA
US/HDIL Hopedale, Illinois, USA
US/HLID Hailey, Idaho, USA
US/HWUT Hardware Ranch, Cache County, Utah, USA
US/ISCO Idaho Springs, Colorado, USA
US/JCT Junction, Texas, USA
US/JFWS Near Bowden and Sunny Slope Rds, Wisconsin, USA
US/KSU1 Kansas State University--Konza Prairie, Kansas, USA
US/KVTX Kingsville, Texas, USA
US/LAO LASA Array, Montana, USA
US/LBNH Lisbon, New Hampshire, USA
US/LKWY Lake (Yellowstone--Lake), Yellowstone National Park, Wyoming
US/LONY Lake Ozonia, New York, USA
US/LRAL Lakeview Retreat, Alabama, USA
US/MCWV Mont Chateau, West Virginia, USA
US/MIAR Mount Ida, Arkansas, USA
US/MNTX Cornudas Mountains, Texas, USA
US/MSO Missoula, Montana, USA
US/MVCO Mesa Verde, Colorado, USA
US/NATX Nacogdoches, Texas, USA
US/NEW Newport, Washington, USA
US/NHSC New Hope, South Carolina, USA
US/NLWA Neilton Lookout, Washington, USA
US/OGNE Ogallala, Nebraska, USA
US/PKME Peaks-Kenny State Park, Maine, USA
US/RLMT Red Lodge, Montana, USA
US/SCIA State Center, Iowa, USA
US/SDCO Great Sand Dunes National Park, Colorado, USA
US/TPNV Topopah Spring, Nevada, USA
US/TZTN Tazewell, Tennessee, USA
US/VBMS Vicksburg, Mississippi
US/WMOK Wichita Mountains, Oklahoma, USA
US/WRAK Wrangell Island, Southeastern Alaska, Alaska, USA
US/WUAZ Wupatki, Arizona, USA
US/WVOR Wild Horse Valley, Oregon, USA