ICG:
Intergovernmental Coordination Group. As subsidiary bodies of the IOC of UNESCO, the ICG meets to promote, organize, and coordinate regional tsunami mitigation activities, including the issuance of timely tsunami warnings. To achieve this objective requires the participation, cooperation and contribution of many national and international seismic, sea level, communication, and dissemination facilities throughout the region. The ICG is comprised of Member States in the region. Currently, these are ICGs for tsunami warning and mitigation systems in the Pacific, Indian Ocean, Caribbean and adjacent regions, and the north-eastern Atlantic, the Mediterranean and connected seas
ICG/CARIBE-EWS
Intergovernmental Coordination Group for the Tsunami and other Coastal Hazards Warning System for the Caribbean and Adjacent Regions established by Resolution XXIII-14 of the 23rd Session of the IOC General Assembly in 2005. The ICG is comprised principally of IOC Member States and regional organizations from the Wider Caribbean Region. Through the coordinating efforts of the IOCARIBE Sub-commission starting in 1993, a Group of Experts formulated a proposal for the building of the Intra-Americas Tsunami Warning System that was endorsed by the IOC General Assembly in 2002. There are presently 28 Member States in the ICG/CARIBE-EWS
ICG/IOTWMS
Intergovernmental Coordination Group for the Indian Ocean Tsunami Warning and Mitigation System established by Resolution XXIII-12 of the 23rd Session of the IOC General Assembly in 2005. The ICG/IOTWMS Secretariat is presently located in Perth, Australia. There are presently 28 Member States in the ICG/IOTWMS
ICG/ITSU
International Coordination Group for the Tsunami Warning System in the Pacific established by Resolution IV-6 of the 4th Session of the IOC Assembly in 1965. The ICG/ITSU was renamed to the ICG/PTWS in 2006 by Resolution EC-XXXIX.8 of the IOC Executive Council
ICG/NEAMTWS
Intergovernmental Coordination Group for the Tsunami Early Warning and Mitigation System in the North-Eastern Atlantic, the Mediterranean and Connected Seas established by Resolution XXIII-13 of the 23rd Session of the IOC General Assembly in 2005. The ICG is comprised principally of IOC Member States bordering the north-eastern Atlantic and those bordering or within the Mediterranean or connected seas. There are presently 40Member States in the ICG/NEAMTWS.
ICG/PTWS
Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System, former ICG/ITSU, was renamed by Resolution EC-XXXIX.8 of the IOC Executive Council in 2006 as proposed by ITSU at its 20th Session in 2005 (Recommendation ITSU-XX.1). There are presently 46Member States in the ICG/PTWS.
TOWS-WG:
IOC Resolution XXIV-14 (2007) established the Working Group on Tsunamis and Other Hazards related to Sea Level Warning and Mitigation Systems to advise the IOC Governing Bodies on coordinated development and implementation activities on warning and mitigation systems for tsunamis and other hazards related to sea level as a common priority of all ICG Tsunami Warning and Mitigation Systems