NEAMTWS – Tsunami Warning and Mitigation System for the North-Eastern Atlantic, Mediterranean and Connected Seas - Recent Activities NEAMTWS – Tsunami Warning and Mitigation System for the North-Eastern Atlantic, Mediterranean and Connected Seas - Recent Activities

The ICG/NEAMTWS was established as subsidiary body of the IOC, at the 23rd Session of the IOC Assembly in June 2005 through the Resolution XXIII-14

WG1 – Hazzard Assessment, Risk and Modelling WG2 – Seismic and Geophysical Measurements WG3 – Seal Level Measurements WG4 – Advisory, Mitigation and Public Awareness

Architecture of NEAMTWS Seismology/ GPS Sea level Simulation/ modelling RTWC NTWC Tsunami Watch Network supervision National Focal Points National Tsunami Warning NTWC Data collection Data processing Quality control Network management National data centres ALL DATA

Backbone Proposed Seismic Network VEBSN internet VEBSN internet

● In operation ● TIDE GAUGE REGIONAL NETWORK (70 stations)‏ B.Perez, 2007

4 th ICG/NEAMTWS ASSEMBLY (LISBON) DECISIONS AND RECOMENDATIONS Improve seismic monitoring capability in North Africa Establish a Team-Task to define the RTWC architecture, prepare developing plans and evaluate costs and possible finantial contributions Harmonize methodologies and possibly software (Seiscomp 3.0 offered by Germany was accepted)‏ Start a test-phase between the RTWC pre-candidates: INGV (Italy), NOA (Greece), KOERI (Turkey), BGS (UK), IM (Portugal), CEA (France) and IGN (Spain)‏ RTWC must have on duty sea level measurements expertise staff

Warning/Watch Reception and interpretation of RT seismic & sea level measurements Reception of RTWC messages Dissemination of warning and cancellation messages to national authorities according to the national response plan Monitoring tsunami propagation and update information to national authorities Determination of seismic parameters Forecasting of tsunami arrival time, amplitude and run-up for the national coastline Provision of information to other national TWCs and RTWCs Above and beyond watch time National Tsunami Emergency Plan National Procedures (SOP), documentation National tsunami exercises Catalogue of inundation scenarios National tsunami data base Watch Reception and interpretation of RT seismic and sea-level measurements Determination of seismic parameters Forecasting of tsunami arrival times and level of alert (yellow, orange and red) at each forecasting point specified by MS Exchange seismic parameters and information with other RTWCs and NTWCs Disseminate watch and cancellation messages based on the alert-level decision matrix to NTWCs and the Tsunami Warning Focal Points Monitoring of tsunami propagation and disseminate updated information in priority tsunami amplitude measurements Above and beyond watch time Monthly tests of the watch system Procedures, documentation… Regional tsunami exercises Conduct training courses in collaboration with other RTWC and IOC Participate actively and report to the ICG and WGs National Warning Centres recommended roles and performances Regional Warning Centres roles and requirements

Requirements Seismic as well as tsunami/oceanographic expertise Access to Tsunami and large earthquakes data base Real-time transmission systems for reception of data Real-time alert reception system e.g. GTS, Internet… Backup/independent power supply Permanent staff on 24/7 watch Inundation modelling capacity Requirements Seismic as well as tsunami/oceanographic expertise Direct access to a tsunami and large earthquakes data base Real-time transmission systems for reception of data Real-time alert reception and transmission systems like GTS, Internet… Backup/independent power supply Permanent staff on 24/7 watch Tsunami modelling capacity National Warning Centres recommended roles and performances Regional Warning Centres roles and requirements

Seedlink data flow PESTR PMAFR PM CMLA II MTE GE SFS GE/ROA RTC MORF LX IM support PM- IM network II - IDA GE -GEOFON MN -MEDNET LX – IGIDL WM-West Med TREMOR VSATInternet Archive ( storage area network )‏ NRT processing (autopick & autoloc & SOH)‏ Manual Analysis (SEISAN)‏ IM LAN ODC DMC IGN partners imslserver IM DMZ IM firewall GFZ MVO PFVI PBDV PVAQPBAR PLML INMG MOE MN MP246 TIDE GAGE IGP PMRV +6 SP +18 SP PAB IU WM EVO PM Mainland, Madeira, Azores PCVE

, 5.9Mw Event Autoloc (01:57) (8 stations) Ho: 10:35:22 Lat: 36.02N Lon: 10.46W Depth: 30.9 km Mag: 6.2 ML Revised Ho: 10:35:25 Lat: N Lon: W Depth: 37.3 km Mag: 5.9 ML Differences: Epicentre : 12 km Depth: 6.4 km Mag: 0.3

NEAREST Abyssal Station 25 Agusto h 14 minutes TUC 3207 m, 150 km SW CSV

Production of Local & Regional Tsunami Inundation Maps TRANSFER + NEAREST + ANPC projects Flow depth + Flow velociti es

Sea Level Obs IH, IGP National TWC IM Civil Protection Regional Tsunami Warning Center Seismic Obs IM & others