APAT AN INNOVATIVE APPROACH FOR ASSESSING EARTHQUAKE INTENSITIES: THE PROPOSED INQUA SCALE BASED ON SEISMICALLY-INDUCED GROUND EFFECTS IN THE ENVIRONMENT Working Group under the INQUA Subcommission on Paleoseismicity PRESENTED AT THE XVI INQUA CONGRESS RENO, USA JULY 23 – 30, 2003 INQUA Scale XVI INQUA Congress, Reno, July 23 – 30, 2003 AN INNOVATIVE APPROACH FOR ASSESSING EARTHQUAKE INTENSITIES: THE PROPOSED INQUA SCALE BASED ON SEISMICALLY-INDUCED GROUND EFFECTS IN THE ENVIRONMENT Working Group under the INQUA Subcommission on Paleoseismicity Michetti A. M.1, E. Esposito2, J. Mohammadioun3, B. Mohammadioun3, A. Gürpinar4, S. Porfido2, E. Rogozhin5, L. Serva6, R. Tatevossian5, E. Vittori6, F. Audemard7, V. Comerci6, S. Marco8, J. McCalpin9, and N.A. Morner10. 1Università dell’Insubria, Como, Italy;
[email protected]; 2CNR-IAMC, Napoli, Italy; 3Robinswood Consultant, Saint Martin de Nigelles, France; 4IAEA, Vienna, Austria; 5Russian Academy of Sciences, Moscow, Russia; 6APAT, Roma, Italy; 7FUNVISIS, Caracas, Venezuela; 8University of Tel Aviv, Israel; 9GEO-HAZ Consulting, Crestone, CO, USA; 10University of Stockholm, Sweden. INDEX Introduction 2 Intensity — Why today? 4 The shortcomings of earlier scales — Why Intensity should be evaluated using ground effects 6 General statements 9 The INQUA scale 13 Definitions of intensity degrees 14 Intensity - fault parameter relationships: discussion and conclusions 21 References 22 Appendix 1: References for earthquakes listed in Table 2 and 3 41 Appendix 2: distribution of ground