The Intergovernmental Coordination Group for the Indian Ocean Tsunami Warning and Mitigation System (ICG/IOTWS) was formed in response to the tragic tsunami on December 26th 2004, in which over 250,000 lives were lost around the Indian Ocean region. The Intergovernmental Oceanographic Commission of UNESCO (IOC-UNESCO) received a mandate from the international community to coordinate the establishment of the System during the course of several international and regional meetings, including the World Conference on Disaster Reduction (Kobe, Japan, 18 – 22 January 2005), and the Phuket Ministerial Meeting on Regional Cooperation on Tsunami Early Warning Arrangements (Phuket, Thailand, 28 and 29 January 2005). The IOC Assembly, during its twenty-third Session (21-30 June 2005), formally established the ICG/IOTWS through Resolution IOC-XXIII-12. For more information see http://www.ioc-tsunami.org/index.php?option=com_content&view=article&id=8&Itemid=13&lang=en

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  • IOTWMS Broadband Seismometer Network, December 2017: kml file

    Intergovernmental Oceanographic Commission, Perth Office (ICG/IOTWMSPerth, Western Australia, 2017-12-01)
    The Indian Ocean Tsunami Warning and Mitigation System (IOTWMS) Seismic Network database contains broadband seismometers that are located within the India Ocean region. The database is intended to include all near real-time broadband seismometers in the Indian Ocean region with freely available data. The database was compiled by extracting all broadband seismic stations from the FDSN, the ISC registry, RTSP Australia, and the Member State national reports submitted to the ICG/IOTWS-IX meeting (Jakarta, November 2012). The data has been checked for accuracy and completeness via consultation with national and global network operators. In 2017, Member States were requested to provided updates to their broadband seismic stations. An updated database was released in December 2017. Agencies and institutions that operate networks that are not captured in the database are encouraged to submit station details to the IOTWMS Secretariat at iotwms@unesco.org.
  • IOTWMS Sea Level Station Network, December 2017: kml file

    Intergovernmental Oceanographic Commission, Perth Office (ICG/IOTWMSPerth, Western Australia, 2017)
    The Indian Ocean Tsunami Warning and Mitigation System (IOTWMS) Sea Level Network database contains sea level gauges and deep ocean tsunameters that are located within the India Ocean region. The database is intended to include all near real-time sea level stations and tsunameters in the Indian Ocean region with freely available data. The database was compiled by extracting all sea level stations from GLOSS, the IOC Sea Level Station Monitoring Facility, NOAA’s National Data Buoy Center, and the Member State national reports submitted to the ICG/IOTWS-IX meeting (Jakarta, November 2012). The data has been checked for accuracy and completeness via consultation with national and global network operators. In 2017, Member States were requested to provided updates to their sea level stations. An updated database was released in December 2017. Agencies and institutions that operate networks that are not captured in the database are encouraged to submit station details to the IOTWMS Secretariat at iotwms@unesco.org.
  • IOTWS Broadband Seismometer Network, October 2014: kml file.

    IOC UNESCO (ICG/IOTWSPerth, Western Australia, 2014)
    The Indian Ocean Tsunami Warning and Mitigation System (IOTWS) Seismic Network database contains broadband seismometers that are located within the India Ocean region. The database is intended to include all near real-time broadband seismometers in the Indian Ocean region with freely available data. The database was compiled by extracting all broadband seismic stations from the FDSN, the ISC registry, RTSP Australia, and the Member State national reports submitted to the ICG/IOTWS-IX meeting (Jakarta, November 2012). The data has been checked for accuracy and completeness via consultation with national and global network operators. It is intended that Member States will provide further feedback on this database for the ICG/IOTWS-X meeting (Muscat, March 2015). Agencies and institutions that operate networks that are not captured in the database are encouraged to submit station details to the IOTWS Secretariat at iotws@unesco.org.
  • IOTWS Sea Level Station Network, October 2014: kml file.

    IOC UNESCO (ICG/IOTWSPerth, Western Australia, 2014)
    The Indian Ocean Tsunami Warning and Mitigation System (IOTWS) Sea Level Network database contains sea level gauges and deep ocean tsunameters that are located within the India Ocean region. The database is intended to include all near real-time sea level stations and tsunameters in the Indian Ocean region with freely available data. The database was compiled by extracting all sea level stations from GLOSS, the IOC Sea Level Station Monitoring Facility, NOAA’s National Data Buoy Center, and the Member State national reports submitted to the ICG/IOTWS-IX meeting (Jakarta, November 2012). The data has been checked for accuracy and completeness via consultation with national and global network operators. It is intended that Member States will provide further feedback on this database for the ICG/IOTWS-X meeting (Muscat, March 2015). Agencies and institutions that operate networks that are not captured in the database are encouraged to submit station details to the IOTWS Secretariat at iotws@unesco.org.