ITSU/PTWS History - International Tsunami Information Center
International Tsunami Information Center
https://legacy.itic.ioc-unesco.org/index.php
2024-07-31T08:32:36+00:00
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Establishment and purpose of PTWS
2004-12-28T10:49:18+00:00
2004-12-28T10:49:18+00:00
https://legacy.itic.ioc-unesco.org/index.php?option=com_content&view=article&id=1138:establishment-and-purpose-of-ptws&catid=2541&Itemid=1084
ITIC
tammy.fukuji@noaa.gov
<div class="feed-description"><p> </p>
<p align="justify">The Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (ICG/PTWS) was established in 1965 through Resolution 6 at the Fourth Session of the Intergovernmental Oceanographic Commission General Assembly. The ICG/PTWS first convened in 1968, and was called the International Coordination Group for the Tsunami Warning System in the Pacific (ITSU) until its name change in 2005. The main purpose of the gGoup is to coordinate international tsunami mitigation activities, including the dissemination of timely tsunami warnings, watches, and advisory bulletins throughout the Pacific to member states in accordance with procedures outlined in the PTWS Operational Users Guide (formerly called its Communications Plan).</p>
<p align="justify"><a href="index.php?option=com_content&view=category&layout=blog&id=1154">Link to ICG/PTWS Sessions</a></p>
<p></p>
<p><strong><span style="text-decoration: underline;"></span></strong></p>
<table style="width: 585px; height: 270px; border: 1px solid #000000;" cellspacing="1" cellpadding="2">
<tbody>
<tr>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong>Year</strong></td>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong>Document</strong></td>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong>Description</strong></td>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong> Format/Size</strong></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1965</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC Resolution 6</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Establish ICG/ITSU with ITIC (PTWC)</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/itsu_ptws_history/1965_IOC-IV.6_estITSU-ITIC.pdf" target="_blank" title="IOC Resolution 6 - Establish ICG/ITSU with ITIC (PTWC)">PDF</a><span style="color: #000000; text-align: center;"> (197 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1968</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-I</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Summary Report</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><span style="color: #000000; text-align: center;"><a href="images/stories/ptws/ptws_sessions/ITSU-I/SR_I_Honolulu_1968.pdf" target="_blank" title="ICG/ITSU-I - Summary Report">PDF</a><span style="color: #000000; text-align: center;"> (254 KB)</span><br /></span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1974</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-IV</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">ITIC Associate Director</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-IV/1974_ITSU-IV_ITICfunc_AssocDir.pdf" target="_blank" title="ICG/ITSU-IV - ITIC Associate Director">PDF</a><span style="color: #000000; text-align: center;"> (169 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1977</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC-X.23</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">ITIC Mandate & Functions</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-X/1977_IOC-X.23_ITICmandate-func.pdf" target="_blank" title="IOC-X.23 - ITIC Mandate & Functions">PDF</a><span style="color: #000000; text-align: center;"> (104 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1978</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-XI.3</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">ITIC Mandate & Functions, Amendment</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-XI/1987_ITSU-XI.3_ITICmandate_amendment.pdf" target="_blank" title="ICG/ITSU-XI.3 - ITIC Mandate & Functions, Amendment">PDF</a><span style="color: #000000; text-align: center;"> (43 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2005</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-XX, Summary Report</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Name Change from ICG/ITSU to ICG/PTWS, Establish Japan NWPTAC</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-XX/ITSU_XX_SummaryReport.pdf" target="_blank" title="ICG/ITSU-XX , Summary Report - Name Change from ICG/ITSU to ICG/PTWS, Establish Japan NWPTAC">PDF</a><span style="color: #000000; text-align: center;"> (741 KB)</span> </td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2013</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-XXV</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Summary Report, Proposal accepted for China SCSTAC</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/PTWS-XXV/icg-ptws-xxv-fv.pdf" target="_blank" title="ICG/ITSU-XXV - Summary Report, Proposal accepted for China SCSTAC">PDF</a><span style="color: #000000; text-align: center;"> (1.14 MB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2014</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC CL 2535</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">PTWC cease issuing Warnings, start issuance of PTWC Enhanced Products</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_documents/circular_letters/CL_2535_eo.pdf" target="_blank" title="IOC CL 2535 - PTWC cease issuing Warnings, start issuance of PTWC Enhanced Products">PDF</a><span style="color: #000000; text-align: center;"> (237 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2018</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC CL 2706</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">SCSTAC start of trail operations</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_documents/circular_letters/SCSTAC_CL-2706_eo.pdf" target="_blank" title="IOC CL 2706 - SCSTAC start of trail operations">PDF</a><span style="color: #000000; text-align: center;"> (2.92 MB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2019</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC CL 2753</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">NWPTAC changeover to NWPTAC Enhanced Products</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_documents/circular_letters/CL-2753_eo_NWPTAC_EnhancedProducts_start.pdf" target="_blank" title="IOC CL 2753 - NWPTAC changeover to NWPTAC Enhanced Products">PDF</a><span style="color: #000000; text-align: center;"> (371 KB)</span></td>
</tr>
</tbody>
</table>
<p align="justify"> </p></div>
<div class="feed-description"><p> </p>
<p align="justify">The Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (ICG/PTWS) was established in 1965 through Resolution 6 at the Fourth Session of the Intergovernmental Oceanographic Commission General Assembly. The ICG/PTWS first convened in 1968, and was called the International Coordination Group for the Tsunami Warning System in the Pacific (ITSU) until its name change in 2005. The main purpose of the gGoup is to coordinate international tsunami mitigation activities, including the dissemination of timely tsunami warnings, watches, and advisory bulletins throughout the Pacific to member states in accordance with procedures outlined in the PTWS Operational Users Guide (formerly called its Communications Plan).</p>
<p align="justify"><a href="index.php?option=com_content&view=category&layout=blog&id=1154">Link to ICG/PTWS Sessions</a></p>
<p></p>
<p><strong><span style="text-decoration: underline;"></span></strong></p>
<table style="width: 585px; height: 270px; border: 1px solid #000000;" cellspacing="1" cellpadding="2">
<tbody>
<tr>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong>Year</strong></td>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong>Document</strong></td>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong>Description</strong></td>
<td style="background-color: #87ceeb; border: 1px solid #000000; margin-left: 40px; padding: 5px;"><strong> Format/Size</strong></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1965</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC Resolution 6</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Establish ICG/ITSU with ITIC (PTWC)</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/itsu_ptws_history/1965_IOC-IV.6_estITSU-ITIC.pdf" target="_blank" title="IOC Resolution 6 - Establish ICG/ITSU with ITIC (PTWC)">PDF</a><span style="color: #000000; text-align: center;"> (197 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1968</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-I</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Summary Report</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><span style="color: #000000; text-align: center;"><a href="images/stories/ptws/ptws_sessions/ITSU-I/SR_I_Honolulu_1968.pdf" target="_blank" title="ICG/ITSU-I - Summary Report">PDF</a><span style="color: #000000; text-align: center;"> (254 KB)</span><br /></span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1974</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-IV</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">ITIC Associate Director</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-IV/1974_ITSU-IV_ITICfunc_AssocDir.pdf" target="_blank" title="ICG/ITSU-IV - ITIC Associate Director">PDF</a><span style="color: #000000; text-align: center;"> (169 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1977</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC-X.23</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">ITIC Mandate & Functions</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-X/1977_IOC-X.23_ITICmandate-func.pdf" target="_blank" title="IOC-X.23 - ITIC Mandate & Functions">PDF</a><span style="color: #000000; text-align: center;"> (104 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">1978</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-XI.3</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">ITIC Mandate & Functions, Amendment</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-XI/1987_ITSU-XI.3_ITICmandate_amendment.pdf" target="_blank" title="ICG/ITSU-XI.3 - ITIC Mandate & Functions, Amendment">PDF</a><span style="color: #000000; text-align: center;"> (43 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2005</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-XX, Summary Report</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Name Change from ICG/ITSU to ICG/PTWS, Establish Japan NWPTAC</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/ITSU-XX/ITSU_XX_SummaryReport.pdf" target="_blank" title="ICG/ITSU-XX , Summary Report - Name Change from ICG/ITSU to ICG/PTWS, Establish Japan NWPTAC">PDF</a><span style="color: #000000; text-align: center;"> (741 KB)</span> </td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2013</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">ICG/ITSU-XXV</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">Summary Report, Proposal accepted for China SCSTAC</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_sessions/PTWS-XXV/icg-ptws-xxv-fv.pdf" target="_blank" title="ICG/ITSU-XXV - Summary Report, Proposal accepted for China SCSTAC">PDF</a><span style="color: #000000; text-align: center;"> (1.14 MB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2014</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC CL 2535</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">PTWC cease issuing Warnings, start issuance of PTWC Enhanced Products</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_documents/circular_letters/CL_2535_eo.pdf" target="_blank" title="IOC CL 2535 - PTWC cease issuing Warnings, start issuance of PTWC Enhanced Products">PDF</a><span style="color: #000000; text-align: center;"> (237 KB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2018</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC CL 2706</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">SCSTAC start of trail operations</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_documents/circular_letters/SCSTAC_CL-2706_eo.pdf" target="_blank" title="IOC CL 2706 - SCSTAC start of trail operations">PDF</a><span style="color: #000000; text-align: center;"> (2.92 MB)</span></td>
</tr>
<tr>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">2019</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;">IOC CL 2753</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="left">NWPTAC changeover to NWPTAC Enhanced Products</td>
<td style="border: 1px solid #000000; margin-left: 40px; padding: 5px;" align="center"><a href="images/stories/ptws/ptws_documents/circular_letters/CL-2753_eo_NWPTAC_EnhancedProducts_start.pdf" target="_blank" title="IOC CL 2753 - NWPTAC changeover to NWPTAC Enhanced Products">PDF</a><span style="color: #000000; text-align: center;"> (371 KB)</span></td>
</tr>
</tbody>
</table>
<p align="justify"> </p></div>