30 YEARS AFTER THE SPITAK EARTHQUAKE: EXPERIENCE AND PERSPECTIVES International Conference December 03-07, 2018 YEREVAN, ARMENIA CONFERENCE PROGRAM ABSTRACTS VOLUME Yerevan – 2018 30 years after Spitak Earthquake: Experience and Perspectives International Conference ՍՊԻՏԱԿԻ ԵՐԿՐԱՇԱՐԺ, 30 ՏԱՐԻ ԱՆՑ. ՓՈՐՁ ԵՎ ՀԵՌԱՆԿԱՐՆԵՐ Միջազգային գիտաժողով Դեկտեմբերի 03-07, 2018 ԵՐԵՎԱՆ, ՀԱՅԱՍՏԱՆ ԳԻՏԱԺՈՂՈՎԻ ԾՐԱԳԻՐ ՍԵՂՄԱԳՐԵՐԻ ԺՈՂՈՎԱԾՈՒ Երևան – 2018 2 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference CONFERENCE ORGANIZERS National Academy of Sciences of Ministry of Emergency Situations Armenia (NAS) (MES) of Armenia Institute of Geological Sciences (IGS Seismic Protection Territorial NAS) Survey SNCO (SPTS MES) Institute of Geophysics and State Urban Development Engineering Seismology after A. Committee of Armenia Nazarov (IGES NAS) International Science and Technology Center (ISTC) in Armenia United Nations Development Programme (UNDP) State Committee of Science (SCS) of the Ministry of Education and Science Georisk Scientific Research CJSC Armenian Association of Seismology and Physics of the Earth (AASPE) ORGANIZING COMMITTEE Martirosyan Radik, Co-chairman, President of NAS, Armenia Tsolakyan Feliks, Co-chairman, Minister of Emergency Situations, Armenia Barseghyan Ara, DRR National Platform, Armenia Evoyan Gagik, Head, International Department of NAS, Armenia Hakobyan Margarita, International Department, MES, Armenia Hovsepyan Aghasi, State urban development committee, Armenia Jrbashyan Ruben, Academician, Institute of Geological Sciences of NAS, Armenia Karapetyan Jon, Institute of Geophysics and Engineering Seismology, NAS, Armenia Khachian Eduard, Senior Researcher, NAS, Armenia Meliksetian Khachatur, Director of IGS of NAS, Armenia Tavadyan Levon , Academician, Division of Chemistry and Earth Sciences of NAS Armenia Chelidze Tamaz, M. Nodia Institute of Geophysics, Georgia Dorbath Catherine, Institute of Earth Sciences, France Gliko Alexander, Academician Secretary of RAS Russia 3 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference Havenith Hans-Balder Université de Liège, Belgium Erdik Mustafa, Bogazici University, Turkey Negmatullayev Sobit, Institute of Geology, Earthquake Engineering and Seismology, AS, Tajikistan PROGRAM COMMITTEE Avagyan Ara, IGS of NAS, Armenia Geodakyan Eduard, Institute of Geophysics and Engineering Seismology, NAS, Armenia Nazaretyan Sergey, MES, Armenia Abdrakhmatov Kanatbek, Institute of Seismology, Kyrgyzstan Godoladze Tea, Ilia State University, Georgia Gök Rengin, Laurence Livermore National Laboratory, USA Gvishiani Alexei, Director of the Geophysical Center of RAS, Russia Kojurin Andrey, Institute of Geological Sciences of RAS, Russia Mohsen Ghafory Ashtiany, International Institute of Earthquake Engineering and Seismology, IRAN Sesetyan Karin, Bogazici University, Turkey Sosson Marc, Institute of Earth Sciences, France Tikhotskih Sergey, Institute of Physics of the Earth of RAS, Russia Trifonov Vladimir, Institute of Geological Sciences of RAS, Russia 4 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference 1988 SPITAK EARTHQUAKE The social shock caused by Spitak earthquake of 7 December 1988, Mw 6.9, (more than 25,000 people died) forced complete reconsideration of common seismotectonic knowledge in Armenia and its surroundings and practice in many aspects, including critical reevaluation of the techniques and organization of the studies of active faults, earthquake geology, and seismic hazard assessment that had been applied earlier. Prior to 1988 Spitak earthquake, seismic hazard studies in Armenia were mainly focused on the analysis of instrumental and partly historical earthquake catalogues primarily by seismologists and geophysicists (Pirouzyan, 1972; Nazaretyan, 1984; Karapetyan, 1988). Active fault studies were not conducted, and rare monographs addressing issues of seismotectonics were published by specialists in Buildings destroyed by 1988 earthquake in Spitak. regional geology and stratigraphy (Vardanyants, 1935; Paffenholtz, 1948; Gabriyelyan et al., 1981). Evidence available from the Armenian historical chronicles was mostly ignored because it was considered that chroniclers severely exaggerated damage and casualties caused by earthquakes (Pirouzyan, 1972). The prevailing thought was that strong earthquakes accompanied by surface ruptures were unlikely in the Greater and the Lesser Caucasus (Borisov, 1982). This attitude, as well as social reasons, contributed to severe underestimation of the magnitude and frequency of seismic hazards, both for Spitak earthquake area, and for Armenia and the Caucasus as a whole. Each of the nine strong earthquakes that occurred in the former USSR from 1948 to 1995 fell in the areas where earthquakes had been estimated to be of a much lower seismic hazard. Such inadequate hazard assessments generally contributed to unpreparedness, lack of studies, and high numbers of casualties. The Spitak earthquake has become a tragic lesson for Armenia but also an impetus for modern studies on active tectonics, seismotectonics, and paleoseismology in the country. 5 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference The 7 Dectember 1988 Spitak earthquake occurred on the northern most extension of the Garni fault where it joins the north-eastern segment of the Pambak- Sevan-Syunik fault system. Fragment of 37 km-long surface rupture of Spitak earthquake of December 7, 1988. The erosion over the last 10 and 20 years after the 1988 Spitak earthquake. (photos by A. Karakhanyan) 6 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference CONFERENCE PROGRAM 4 DECEMBER Hall of Presidium of the National Academy of Sciences of the Republic of Armenia 9:00–10:00 Registration 10:00–10:30 Opening and welcome address by: President of the Armenian National Academy of Sciences, Academician R. Martirosyan Minister of Emergency Situations of Armenia, Mr. F. Tsolakyan UN Resident Coordinator/ UNDP Resident Representative Mr. Shombi Sharp Representative of U.S. Department of Energy, Mr. W. Wanderer 10:30–11: 00 Documentary film about 1988 Spitak earthquake 11:10- 11:40 - Coffee break 11:40 –12: 10 Awarding Ceremony 12:15–13:00 Moving to Ani Plaza Hotel (by bus) 13:00–14:00 Lunch break 7 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference Hall Ani Plaza Hotel PLENARY SESSION: Chairman Dr. Kh. Meliksetian 14:00–14:20 E. Khachiyan. Spitak earthquake of 7th Dec 1988: major seismological characteristics and analysis of its devastating consequences. 14:20–14:40 S. Nazaretyan. Spitak 1988 earthquake: facts and comments. 14:40–15:00 E. Rogozhin. Spitak 1988 earthquake: complex seismological and seismotectonic study results. 15:00–15:20 Kh. Meliksetian. The Spitak earthquake: tragic lesson and impetus for modern studies and adequate assessment of seismic hazards and risks. 15:20- 15:40 - Coffee break PLENARY SESSION: Chairman Dr. S. Margaryan 15:40–16:00 T. Chelidze. Signatures of strong earthquake preparation in the phase space portraits of earthquake time series of Caucasus. 16:00–16:20 L. Serva. Correlation between earthquake surface faulting and coseismic surface deformation: Consequences for FDHA. 16:20–16:40 T. Onur. Disaster risk reduction in the Caucasus through modernization of building codes. 16:40–17:00 M. Sosson. The Caucasus domain tectonic evolution: the role of inherited structural deep faults zones in the location of the seismicity 17:00–17:20 A. Avagyan. Overview of Active tectonics of Armenia. 17.20-17.40 М. Ashtiani. General Overview on Response, Recovery and Reconstruction of November 21, 2017 Sarpol-e-Zahab Mw 7.3 Earthquake, Iran. 17.40-18.00 Discussion 8 | Page 30 years after Spitak Earthquake: Experience and Perspectives International Conference 5 DECEMBER DVIN Hall (Ani Plaza Hotel) SECTION I. 1988 SPITAK EARTHQUAKE: FIELD OBSERVATIONS IN THE EPICENTRAL AREA; PRESENT-DAY SEISMICITY OF THE REGION; NEW STUDIES AND RESULTS AFTER 30 YEARS. SESSION 1: Chairman Dr. R. Gök, Co-Chairman Dr. L. Sargsyan 09:50–10:10 R.Tadevosyan. Seismological expedition of the IPE USSR AS in the epicentral area of Sptak, 1988, earthquake. 10:10–10:30 E. Geodakyan, M. Mkrtchyan. Aftershock process and discharge of seismotectonic stresses in the focal zone of Spitak earthquake. 10:30–10:50 R. Gök, M. Pasyanos. Seismic structure in the Caucasus region. 10:50–11:10 C. Evangelidis and G. Drakatos. European federated EIDA infrastructure for seismic waveform data archives. The regional NOA data implementation. 11:10–11:30 H. Mkrtchian, V. Mkrtchyan. New insights on the geology and seismotectonics of the Shirak basin, Republic of Armenia. 11:30-11:50 Coffee break 11:50–12:10 T. Godoladze, R. Gok, I. Bondar, M. Dzmanashvili, I. Gunia, N. Tumanova, T. Onur, G. Yetermishli, H. Babayan. Relocation of the Caucasus seismic events. 12:10–12:30 H. Petrosyan, A. Hovsepyan, S. Margaryan, A. Karakhanyan, E. Khachiyan, A. Arakelyan, T. Margaryan, S. Arakelyan, H. Babayan, Y. Abgaryan, and N.Mirzoyan. New map of probabilistic seismic hazard assessment for the area of the Republic of Armenia (seismic zoning) at the scale of 1:500000. 12:30 – 12:50 H. Petrosyan, Sh. Shahinyan and Zh. Sargsyan. Analysis of data of modern vertical crust movement in the Spitak earthquake region. 12:50–13:10 S. Akopian. Technology of global monitoring of strong earthquakes based on seismic entropy.