1 / 21

Seismic & Tsunami Monitoring and Early Warning: the case of Greece

Explore Greece's seismic and tsunamicity issues, early warning systems, historical documentation, monitoring processes & future TEWS advancements. Follow Dr. G. A. Papadopoulos' research insights.

scostello
Download Presentation

Seismic & Tsunami Monitoring and Early Warning: the case of Greece

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Seismic & Tsunami Monitoring and Early Warning: the case of Greece Dr G. A. Papadopoulos Research Director Institute of Geodynamics National Observatory of Athens g.papad@gein.noa.gr

  2. World Seismicity

  3. Seismicity of Europe

  4. Seismicity of Greece: the highest in Western Eurasia √ M6 / yr √ Mmax ~ 8

  5. Tsunamicity of Greece: the highest in the Euro-Mediterranean region Papadopoulos & Fokaefs, 2005

  6. The 9th July 1956 event

  7. VI-VIII

  8. VI-VIII IV V III

  9. Wave attenuation: 9 July 1956

  10. Cause: Aseismic earth slump Region: West Corinth Gulf Documentation: Post-event field surveys Hmax ~ 6 m Corinth Gulf : 7 Febr. 1963 tsunami

  11. Seismic criteria for IOC/ NEAMTWS Advisories A proposal for Decision Matrix for Tsunami Early Warning in the Mediterranean Sea

  12. ► Earthquake Planning & Protection Organization √ Co-ordination of national antiseismic policy √ Building codes √ Education √ Guidelines-Advisories √ Seismic Hazard Evaluation √ Funding of research ►General Secretary for Civil Protection √ Co-ordination of national protection against natural & technological disasters √ Emergency plans √ Hazards Evaluation √ Co-ordination of rescue operations during disaster crises Civil Protection System Ministry of Environment, Urban Planning & Public Works Ministry of the Interior

  13. Currently: NOA Telemetric Seismograph System: 28 stations End 2008: NOA co-ordination: national unified system: 70 stations End 2008: NOA New seismic stations along the Hellenic Arc

  14. Analog recording system

  15. Digital seismograph system Signal Receiving System (seismic records) Manual EQ Determination (~10 min) Automatic EQ determination (test phase) (~3 min) +

  16. TEWS: Summary of current state 1. National seismograph system 2. Telecommunication lines 3. 7/24 personnel on duty 4. Standard EQ determination procedures 5. Good knowledge of tsunami history-sources- attenuation laws etc 6. Decision matrix for early tsunami warning

  17. TEWS: Missing items 1. National telemetric tide-gauge system 2. Data base of tsunami simulations 3. Plans for alert transmission 4. Plans for public warning issue 5. Education programme

  18. Planned for 2007-08

  19. Alerting stage 1

  20. Alerting stage 2

More Related