Tools for compiling the Global Earthquake History

Transcription

1 Tools for compiling the Global Earthquake History with the contribution of Paola Albini, Antonio A. Gomez Capera, Mario Locati, Roger M.W. Musson, Andrea Rovida, Daniele Viganò, Massimiliano Stucchi GEM-HGC Global Earthquake History project - Scientific Board, June 2012

2 Project s Goals! Establishing a distributed, online resource, called Global Archive of Historical Earthquake Studies, where both reports and macroseismic data points (when available) can be uploaded, organized and made available to public (if possible - copyright issues)! Supplying GEM with the best Global parametric Earthquake Catalogue (Mw 7.0) that can be compiled from current resources providing, as far as possible, a link to the background information! Complementing the catalogue entries with comments and, when possible, with earthquake parameters re-assessed from intensity data points and from historical evidence of length of rupture. Epistemic uncertainties will be emphasized rather than hidden, for the benefit of hazard assessments

3 The Project workflow Global Archive MDP database(s) Del. 6 Catalogue 1 Del. 4 Catalogue 2 Catalogue 3 Catalogue n Global Catalogue GLHECAT release 2 (2011) Del. 5 Global Catalogue GLHECAT (end of 2012) Comments

4 Global Large Historical Earthquake Catalogue - GLHECAT (Dec 2011)

5 Global Large Historical Earthquake Catalogue - GLHECAT is a catalogue! 684 earthquakes

6 Global Large Historical Earthquake Catalogue - GLHECAT

7 Global Large Historical Earthquake Catalogue - GLHECAT Bakun et al., Grunewald & Stein, Bozkurt et al., 2007 Benito et al., Chiu & Kim, Lee & Yang, 2006 Some of the catalogues recently considered (since Dec. 2011) McCue, 1999 and 2008

8 Earthquakes with MDPs (Dec 2011)

9 Summary status of the MDPs currently available (Dec 2011) MDP Dataset EQs MDPs Place names Coords Digital Homogen. Scale AHEAD (Europe) YES YES YES partial MSK, MCS, EMS, MM NOAA (U.S.) YES YES YES NO MM CERESIS YES YES YES NO MSK, MM Colombia (AA.VV.) Ecuador (AA.VV.) Venezuela (AA.VV.) YES partial partial NO MSK, MM, EMS ex URSS (EMCA, 2011) ex URSS (Shebalin, 1977) India (Martin & Szeliga, 2010) India (Ambraseys & Doug., 2004) NO YES YES NO MSK YES NO NO NO MSK YES YES YES NO EMS YES YES YES NO MSK Cuba (AA.VV.) YES partial NO NO MSK Total

10 Global Archive Investigated Regions (Dec 2011)

11 Building the Archive - Cuba :14 M S 7.5 Chuy, 1999 Retrieval of intensity data points for earthquakes in Cuba in collaboration with CENAIS-Centro Nacional de Investigaciones Sismologicas

12 Global Earthquake History , M 7.0 Building the Archive - Cuba :14 MS 7.5 Chuy, MS 6.8 Cotilla, 2003

13 Global Earthquake History , M 7.0 Cuba - Calibrating Bakun & Wentworth (1997) for SE Cuba seismicity - red dots: eqs for calibration - yellow dots: eqs for validation

14 Cuba - Calibration applied to 1766 June 11 eq

15 Central America - New catalogue published: Benito et al., 2012 After a first check, it seems that the catalogue has some gaps, for instance for historical earthquakes of Guatemala We are taking care of comparing it with GLHECAT input catalogues as well as the published studies on Central America

16 Global Earthquake History , M 7.0 Central America - Retrieved Peraldo & Montero, 1999 (book, 347 pp.) 1717 Sept 29, Guatemala

17 Global Earthquake History , M 7.0 Central America - Retrieved Peraldo & Montero, 1999 (book, 347 pp.) It contains more than 30 earthquakes with M 7 in the time-span (note that Benito et al., 2012, do not mention it) Peraldo & Montero informed us (2012) that macroseismic data they collected had been input in a database (around 1999), but unfortunately data in digital format have been lost (!) In the framework of GEM-Global Earthquake History project we aim at reconstructing the database, from scratch (now that we succeeded in retrieving the book)

18 Global Earthquake History , M 7.0 South America - Reports on Historical earthquakes in Colombia (Dec 2011) 12 July 1785, Bogotà 65 reports (from historical sources to intensity data, average of 100 pages each) on historical earthquakes in Colombia, Available on INGEOMINAS digital archive (SICAT) since Dec aplicaciones1.ingeominas.gov.co/ sicat/html/default.aspx

19 Global Archive Investigated Regions: update (May 2012)

20 Meetings organized and attended (January-May 2012) ü 3 February 2012, Pavia, GEM Secretariat: meeting with the GEM Secretariat and IT in preparation of the GEM Platform Meeting with respect to the activity of Global Earthquake History (Paola Albini and Mario Locati) ü February 2012, Milano, INGV: meeting with Karin Sesetyan and Mine Demircioglu, KOERI, Istanbul, on the activity on Turkey for the collaboration signed within Global Earthquake History ü 8-9 March 2012, Pavia, GEM Secretariat: GEM Platform Meeting (Paola Albini, Roger Musson, Massimiliano Stucchi, Mario Locati) ü 20 April 2012, Milano, INGV: meeting with Karin Sesetyan and Mine Demircioglu, KOERI, Istanbul, on the activity on Turkey for the collaboration signed within Global Earthquake History ü 3-4 May 2012, Tunisi, partecipation into the GEM North Africa 2nd workshop, to present the activity of the Global Earthquake History project (invited) (Paola Albini and Andrea Rovida) ü 4-10 June 2012, Santiago de Cuba, Cuba, IV Conferencia Internacional de Peligrosidad, Riesgo Geológico e Ingeniería Sísmica y de Desastres, Santiago de Cuba, 8 al 11 de mayo de 2012 (Antonio Gomez Capera, Massimiliano Stucchi, Julio Garcia, Dario Slejko) to present the activity of the Global Earthquake History project with focus on initiatives in the Americas