Membership of the ISC is open to any national academy, agency, scientific institution or other non-profit organisation. Any commercial organisation with an interest in the objectives and/or output of the Centre may become an Associate Member. Each member of the ISC is represented on the Governing Council, which is the ruling body of the ISC.
 | The Japan Meteorological Agency (JMA), Japan | Dr. Tetsuo Hashimoto To: March 2017 |
 | The Japan Meteorological Agency (JMA), Japan | Dr. Gen Aoki Since: April 2017 To: March 2019 |
 | Russian Academy of Sciences, Russia | Prof. Nadezhda Kondorskaya To: July 1996 |
 | China Earthquake Administration, China | Prof. Fuqiong Huang Since: June 2012 To: December 2019 |
 | The Japan Meteorological Agency (JMA), Japan | Dr. Shin'ya Tsukada Since: April 2022 |
 | China Earthquake Administration, China | Assoc. Prof. Yanru An Since: January 2020 |
 | China Earthquake Administration, China | Prof. Qi-fu Chen Since: January 2005 To: June 2012 |
 | Russian Academy of Sciences, Russia | Dr. Aleksey Malovichko To: September 2018 |
 | Russian Academy of Sciences, Russia | Dr. Yury Vinogradov Since: October 2018 |
 | The Japan Meteorological Agency (JMA), Japan | Mr. Masaki Nakamura Since: April 2020 To: March 2022 |
 | China Earthquake Administration, China | Prof. Xinling Qin Since: January 1979 To: December 1987 |
 | Russian Academy of Sciences, Russia | Dr. Oleg Starovoit Since: July 1996 |
 | China Earthquake Administration, China | Prof. Yong Chen Since: January 1988 To: December 2004 |
 | The Japan Meteorological Agency (JMA), Japan | Dr. Shigeji Suyehiro |
 | The Japan Meteorological Agency (JMA), Japan | Dr. Akio Yoshida Since: January 1998 To: January 2003 |
 | The Japan Meteorological Agency (JMA), Japan | Dr. Koji Nakamura Since: April 2019 To: March 2020 |
 | The University of Helsinki, Finland | Dr. Timo Tiira Since: May 2021 To: December 2023 |
 | National Geophysical Research Institute (NGRI), Council of Scientific and Industrial Research (CSIR), India | Dr. D. Srinagesh Since: March 2020 |
 | The University of Helsinki, Finland | Dr. Matt Gardine Since: January 2024 |
 | Instituto Português do Mar e da Atmosfera, Portugal | Dr. Fernando Carrilho |
 | GeoForschungsZentrum Potsdam, Germany | Dr. Joachim Saul |
 | Uppsala Universitet, Sweden | Dr. Bjorn Lund Since: January 2018 |
 | Disaster and Emergency Management Authority (AFAD), Turkey | Dr. Murat Nurlu Since: January 2018 |
 | Incorporated Research Institutions for Seismology, U.S.A. | Dr. Ray Willemann |
 | Incorporated Research Institutions for Seismology, U.S.A. | Dr. Tim Ahern To: February 2019 |
 | Incorporated Research Institutions for Seismology, U.S.A. | Dr. Jerry A. Carter Since: February 2019 |
 | The University of Helsinki, Finland | Prof. Urmas Luosto To: July 1998 |
 | British Geological Survey, United Kingdom | Dr. Alice Walker Since: January 1999 To: December 2003 |
 | The University of Helsinki, Finland | Dr. Marja Uski Since: January 2018 To: May 2021 |
 | Geological Survey of Denmark and Greenland (GEUS), Denmark | Dr. Søren Gregersen To: November 2009 |
 | The University of Helsinki, Finland | Eijo Vesanen |
 | The University of Helsinki, Finland | Heikki Korhonen |
 | Council for Geoscience, South Africa | Dr. Michelle Grobbelaar Since: January 2013 |
 | Geological Survey of Denmark and Greenland (GEUS), Denmark | Dr. Peter Voss Since: November 2009 |
 | Uppsala Universitet, Sweden | Dr. Reynir Bodvarsson To: December 2017 |
 | British Geological Survey, United Kingdom | Dr. Brian Baptie Since: January 2004 |
 | The University of Helsinki, Finland | Dr. Pekka Heikkinen Since: September 1998 To: December 2014 |
 | The University of Helsinki, Finland | Dr. Annakaisa Korja Since: January 2015 To: December 2017 |
 | Earth Observatory of Singapore (EOS), an autonomous Institute of Nanyang Technological University, Singapore | Asst. Prof Shengji Wei Since: September 2019 |
 | Red Sísmica de Puerto Rico | Dr. Christa von Hillebrandt-Andrade Since: January 2009 To: January 2010 |
 | Institute of Geophysics, National University of Mexico | Dr. Xyoli Perez-Campos |
 | Korean Meterological Administration, Republic of Korea | Mr. Namchul (Gilbert) Woo Since: December 2018 |
 | Korean Meterological Administration, Republic of Korea | Dr. Jun-Hee Lee To: December 2018 |
 | National Institute of Polar Research (NIPR), Japan | Dr. Masaki Kanao Since: January 2014 |
 | Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Italy | Dr. Marco Mucciarelli Since: January 2016 To: November 2016 |
 | Centro Sismologico Nacional, Universidad de Chile | Dr. Edgar Kausel Since: January 1981 To: January 1989 |
 | Autorité de Sûreté Nucléaire et de Radioprotection (formerly IRSN), France | Dr. Christophe Clement Since: March 2020 To: September 2021 |
 | Autorité de Sûreté Nucléaire et de Radioprotection (formerly IRSN), France | Dr. Aurore Laurendeau Since: October 2021 |
 | Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Mexico | Dr. Héctor González Huizar Since: January 2021 |
 | Institute of Marine Sciences (ICM-CSIC), Spain | Dr. Antonio Villaseñor Since: June 2021 |
 | Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Italy | Dr. Dario Slejko To: December 2015 |
 | National Institute for Earth Physics, Romania | Ms. Andreea Chircea Since: January 2023 |
 | Institute of Geophysics, Czech Academy of Sciences, Czech Republic | Dr. Jiří Vaněk Since: January 1981 To: January 1994 |
 | Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Italy | Prof. Dr. Stefano Parolai Since: September 2017 To: January 2023 |
 | Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Italy | Dr. Paolo Comelli Since: February 2023 |
 | Geophysics, Research School of Earth Sciences, Australian National University, Australia | Prof. Hrvoje Tkalcic Since: October 2023 |
 | Universidade de São Paulo, Centro de Sismologia, Brazil | Dr. Marcelo Assumpcao Since: June 2015 |
 | Geological Survey of Israel | Dr. Nadav Wetzler Since: January 2020 |
 | Belgian Science Policy Office (BELSPO), Belgium | Dr. Kris Vanneste Since: February 2021 |
 | Dublin Institute for Advanced Studies, Ireland | Dr. Martin Mollhoff Since: January 2019 |
 | Kandilli Observatory and Earthquake Research Institute, Turkey | Prof. Dr. Nurcan Ozel Since: May 2024 |
 | The Seismological Institute, National Observatory of Athens, Greece | Dr. Olga-Joan Ktenidou Since: May 2020 |
 | National Defence Research Establishment (FOI), Sweden | Dr. Henrik Olsson Since: May 2024 |
 | National Research Institute for Astronomy and Geophysics (NRIAG), Cairo, Egypt | Dr. Sherif Mohamed El-Hady Since: March 2021 |
 | Institute of Geophysics, Czech Academy of Sciences, Czech Republic | Dr. Vit Karnik Since: January 1978 To: July 1981 |
 | Institute of Geophysics, Czech Academy of Sciences, Czech Republic | Dr. Jaroslava Plomerova Since: January 1994 |
 | Iraqi Meteorological Organization and Seismology, Iraq | Dr. Salman Saddam Jasim Since: July 2024 |
 | National Research Institute for Astronomy and Geophysics (NRIAG), Cairo, Egypt | Prof. Gad El-Qadi Since: January 2019 To: February 2021 |
 | National Research Institute for Astronomy and Geophysics (NRIAG), Cairo, Egypt | Dr. Abd el-aziz Khairy Since: November 2018 To: February 2021 |
 | Geological Survey Department, Cyprus | Mr Christodoulos Hadjigeorgiou Since: January 2021 |
 | Institute of Geophysics, Polish Academy of Sciences, Poland | Dr. Lukasz Rudzinski Since: September 2020 |
 | Environmental Agency of Slovenia | Dr. Mladen Zivcic To: July 2023 |
 | Environmental Agency of Slovenia | Tamara Jesenko Since: August 2023 |
 | The Icelandic Meteorological Office, Iceland | |
 | Centre de Recherche en Astronomie, Astrophysique et Géophysique (CRAAG), Algeria | Dr. Karim Yelles Since: January 2004 To: March 2023 |
 | Centre of Geophysical Monitoring (CGM) of the National Academy of Sciences of Belarus | Prof. Arkady Aronov Since: January 2011 |
 | Institute of Earth Sciences, Academia Sinica, Chinese Taipei | Dr. Bor-Shouh Huang |
 | National Institute of Geophysics, Geodesy and Geography (NIGGG), Bulgarian Academy of Sciences, Bulgaria | Prof. Dimcho Solakov Since: April 2019 |
 | Pacific Northwest Seismic Network (PNSN), U.S.A. | |
 | Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Mexico | Dr. J. Antonio Vidal-Villegas Since: October 2016 To: May 2021 |
 | Institute of Geophysics, Polish Academy of Sciences, Poland | Prof. Stanislaw Lasocki To: August 2020 |
 | Centre de Recherche en Astronomie, Astrophysique et Géophysique (CRAAG), Algeria | Dr. Hamoud Beldjoudi Since: March 2023 |
 | Institute of Geophysics, Czech Academy of Sciences, Czech Republic | Prof. Alois Zátopek Since: May 1974 |
 | Kandilli Observatory and Earthquake Research Institute, Turkey | Prof. Dr. Haluk Özener Since: July 2018 To: April 2024 |
 | Center for Earthquake Research and Information (CERI), the University of Memphis, U.S.A. | Dr. Mitch Withers Since: July 2024 |
 | Mavlyanov Institute of Seismology, Academy of Sciences, Republic of Uzbekistan | Dr. Murod Mirzaev Since: June 2024 |
 | Red Sísmica de Puerto Rico | Dr. Victor Huerfano Since: February 2010 |
 | Observatorio Nacional, Brazil | Dr. Sergio Fontes Since: September 2019 |
 | Soreq Nuclear Research Centre (SNRC), Israel | Dr. Yohai Ben Horin To: March 2018 |
 | Soreq Nuclear Research Centre (SNRC), Israel | Dr. Yael Radzyner Since: March 2018 |
 | National Defence Research Establishment (FOI), Sweden | Dr. Ola Dahlman |
 | University of the West Indies at Mona, Jamaica | Dr. Donovan Campbell Since: September 2019 |
 | Institut Cartogràfic i Geològic de Catalunya (ICGC), Spain | Dr. Josep Batllo Since: July 2017 |
 | AWE Blacknest, United Kingdom | Dr. Hal Thirlaway |
 | Kandilli Observatory and Earthquake Research Institute, Turkey | Prof. Ali Pinar Since: December 2015 To: June 2018 |
 | Institute of Geosciences, Polytechnic University of Tirana, Albania | Dr. Edmond Dushi Since: August 2024 |
 | Seismological Observatory, Institute of Geosciences, University of Brasilia, Brazil | Prof. Dr. George Sand Franca Since: October 2016 |
 | Alaska Earthquake Center (AEC), University of Alaska Fairbanks, U.S.A. | Dr. Carl Tape Since: February 2020 |
 | University of Utah Seismograph Stations (UUSS), U.S.A. | Dr. Keith Koper Since: January 2020 |
 | Texas Seismological Network (TexNet), Bureau of Economic Geology, J.A. and K.G. Jackson School of Geosciences, University of Texas at Austin, U.S.A. | Dr. Alexandros Savvaidis Since: November 2019 |
 | Geological Survey Department, Cyprus | Dr. Kostas Konstantinou To: December 2020 |
 | Belgian Science Policy Office (BELSPO), Belgium | Dr. Thierry Camelbeeck To: February 2021 |
 | Institute of Earth Physics and Space Science (EPSS), Hungarian Research Network (ELKH), Hungary | Mr Mate Timko Since: April 2021 |
 | National Institute for Earth Physics, Romania | Dr. Mihaela Popa To: January 2023 |
 | Lamont-Doherty Earth Observatory, Columbia Climate School, Columbia University, U.S.A. | Prof. Goran Ekstrom Since: January 2023 |
 | Centro Sismologico Nacional, Universidad de Chile | Dr. Sergio Barrientos Since: April 1995 |