1 / 51

EERC TEAM An Overview

EERC TEAM An Overview. Ragnar Sigbjörnsson UPStrat -MAFA Workshop, Selfoss 24-27 July 2012. Prelude. South Iceland Lowland has been our ‘field laboratory’ for the last 25 years Research aimed towards seismic risk reduction Close cooperation with the local people

wray
Download Presentation

EERC TEAM An Overview

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. EERC TEAMAn Overview Ragnar Sigbjörnsson UPStrat-MAFA Workshop, Selfoss 24-27 July 2012

  2. Prelude • South Iceland Lowland has been our ‘field laboratory’ for the last 25 years • Research aimed towards seismic risk reduction • Close cooperation with the local people • The Rector of the University of Iceland and the Mayor of Árborg signed a contract in 1997 that lead to the establishment of EERC • The Centre was officially opened in 2000

  3. The EERC Team Academic staff: • Dr. Ragnar Sigbjörnsson, Professor, Director • Dr. SímonÓlafsson, Research Professor • Dr. JónasElíasson, Research Professor • Dr. BenediktHalldórsson, Assoc. Research Professor • Dr. Rajesh Rupakhety, Assoc. Research Professor • Sólveig Thorvaldsdóttir, MSE, Research Engineer • Ásthildur Elva Bernhardsdóttir, cand oecon, MA, Rsrch Scientist • Sigurdur Unnar Sigurdsson, MSc, Research Engineer • AldísSigfúsdóttir, MSc, PE, Research Engineer Visiting Professors: • Dr. Athol J. Carr, Professor • Dr. John Douglas, Research Scientist • Dr. Apostolos S. Papageorgiou, Professor • Dr. JónasThórSnæbjörnsson, Professor

  4. The EERC Team Office staff: • ElínborgGunnarsdóttir, Manager • KatrínKristjánsdóttir, Research Assistant Doctoral students: • ÆvarHarðarson, MArch • Fjóla G. Sigtryggsdóttir, MSc • Ole André Oiseth, MSc MSc-students: Teaching and Research Assistants: • JónEinarsson Anna Beta Gísladóttir • PujaRupakhety EinarÓskarsson • HrafnkellMárStefánsson HörðurPállSteinarsson •  SteinarÞórBackmann

  5. International Cooperation

  6. The EERC TeamParticipating in the Workshop • Dr.Ragnar Sigbjörnsson, Professor, Director • Dr. SímonÓlafsson, Research Professor • Dr.Rajesh Rupakhety, Assoc. Research Professor • Sólveig Thorvaldsdóttir, MSE, Research Engineer • Ásthildur Elva Bernhardsdóttir, MA, Research Scientist Guests - Visiting Professors: • Dr.JónasThórSnæbjörnsson, Professor • Dr. Radan Ivanov, Professor Office staff: • ElínborgGunnarsdóttir, Manager • KatrínKristjánsdóttir, Research Assistant

  7. Seismicity of Iceland An Introduction Ragnar Sigbjörnsson UPStrat-MAFA Workshop, Selfoss 24-27 July 2012

  8. Contents • Seismo-tectonics of Iceland • Earthquake catalogue data • Macroseismic field data • Strong-motion data • Seismic hazard maps

  9. Seismo-tectonics of Iceland References: • Sigbjörnsson, R & Ólafsson, S. (2004). OntheSouthIcelandearthquakes in June 2000: strong-motioneffects and damage. BollettinodiGeofisicaTeorica e Applicata, 45(3): 131-152

  10. MID-ATLANTIC RIDGE ~ 1 cm/yr TFZ ICELAND SISZ ~ 1 cm/yr MID-ATLANTIC RIDGE

  11. Active central volcanoes (yellow), calderas (red) and fissure swarms (green)

  12. Volcanic zones and earthquakeso earthquake > 4 after 1896;  & recorded by IceSMN; earthquakes 2000 og 2008

  13. Results of GPS-measurements O recording station; lines indicate velocity and direction

  14. Active plate boundary North-American Plate Eurasian Plate

  15. Volcanic zones and earthquakeso earthquake > 4 after 1896;  & recorded by IceSMN; earthquakes 2000 og 2008

  16. Vulcanic zones, earthquakes and active plate boundary

  17. Earthquake in South Iceland Seismic Zone the last 100 years

  18. Surface fracture 21 June 2000

  19. Landslide 21 June 2000

  20. Damage to road 21 June 2000

  21. Damage to farm building21 June 2000

  22. Damage to residential house17 June 2000

  23. Inside a residential house 17 June 2000

  24. PTSD June 2000

  25. The Árborg Town Hall: The strong-motion array

  26. Ground accelerationBasement of Town Hall at Selfoss, 29 May 2009

  27. Response acceleration3rd floor of the Town Hall at Selfoss, 29 May 2009

  28. Inside the EERC building University of Iceland29 May 2008

  29. The Árborg Town Hall: Displacement (cm) during the 29. maí 2008 earthquake

  30. Earthquake Catalogue of Iceland References: • Ambraseys, N.N. & Sigbjörnsson, R (1999). Re‑Appraisal of the Seismicity of Iceland, Polytechnica - Engineering Seismology, Reykjavik, ISSN 0255-9226 • Ambraseys, N.N. & Sigbjörnsson (2003). On the seismicity of northwestern Europe: A comparative study of earthquake catalogues, Department of Civil and Environmental Engineering, Imperial College of Science, Technology and Medicine, London, UK, Research report number: 03-001-SM, www.imperial.ac.uk/ • References in the above mentioned publications

  31. Parametric Catalogue for Iceland (Ambraseys and Sigbjörnsson, 2000)

  32. Temporal distribution of events in the Parametric Earthquake Catalogue for Iceland

  33. Spatial distribution of earthquake epicentres in the Parametric Earthquake Catalogue for Iceland

  34. Time-line of the Parametric Earthquake Catalogue for Iceland showing surface-wave magnitude as a function of time

  35. Distribution of surface-wave magnitudes from the Parametric Earthquake Catalogue for Iceland (a) histogram (b) cumulative distribution .

  36. Macroseismic Field Data References: • Ambraseys, N.N. & Sigbjörnsson, R (1999). Re‑Appraisal of the Seismicity of Iceland, Polytechnica - Engineering Seismology, Reykjavik, ISSN 0255-9226

  37. Strong-motionData References: • Ambraseys, N.N. et al. (2002).ISESD –Internet Site for European Strong-Motion Data. European Com­mission, Research-Directorate General, Environment and Climate Programme. • Ambraseys, N.N. et al. (2004). Internet Site for European Strong-Motion Data. BollettinodiGeofisicaTeorica e Applicata, 45(3): 113-129 • http://www.ISESD.hi.is

  38. The Icelandic Strong-motion Network, IceSMN ● ground station; ▲ power plant; ▲ dam; ▼ bridge; ■ building

  39. Strong-motion Data • The records are available on the Internet • ISESD – European Databank Information ... http://www.isesd.hi.is/

  40. EarthquakeHazardMapsfor structuraldesignpurposes References: • http://eerc.hi.is, thehazardmapswerederivedby Ragnar Sigbjörnsson in 2002

  41. Significant Duration – June 2000

  42. The seismic source zones and lineaments applied in probabilistic seismic hazard analysis

More Related