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Abstract
The seismic hazard studies of the last 30 years have been largely carried out taking into account the needs of the construction engineers, by linking the specific quantities of soil movement with the physical parameters determined instrumentally, namely, with the maximum values of soil acceleration. At present, interest in the results of hazard studies has increased and has extended to other areas such as insurance or design companies, environmental protection, etc. A fundamental element in the estimation of seismic hazard is the variation of the amplitude of the movement of the soil according to the distance, magnitude and local conditions. To understand and prevent the effects of the strong Vrancea earthquakes in the dam sites located in the South West of Romania, we study the seismic waves attenuation relations using the accelerations recorded by the national network of K2 accelerometers, following the moderate Vrancea intermediate earthquakes. The study area includes the largest agglomeration of dams in Romania, with almost 100 dams out of the 250 large dams. One of the most important specific requirements towards dams' safety is the seismic risk and hazard assessment and the computation of attenuation relationships is one of the most important steps of the work. The main objective of the present work is the evaluation of the specific attenuation relationships of the seismic wave propagating from Vrancea subcrustal focus toward south-west, with direct application for the dams situated in the area.
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Dr. Anica Otilia Placinta, National Institute for Earth Physics
Anica Otilia PLACINTA is a 40 years old physicist engineer, senior researcher third degree, in the Seismological Department of National Institute for Earth Physics. She graduated the Faculty of Physics, Bucharest University (2002), obtained her MSc in 2004 and the PhD in 2015. The title of her PhD thesis is: “Study of seismic source and wave propagation based on the waveform analysis of Vrancea earthquakes”. She is member of the Romanian Society of Geophysics and European Geosciences Union. The main fundamental research activities were primarily focused on fields of seismology, seismic sources and seismic sequences (H index 5) (Web of Science Researcher ID H-4635-2018).
Dr. Emilia Popescu, National Institute for Earth Physics
Emilia POPESCU graduated the Faculty of Physics, Bucharest University in 1975. She took her PhD in the field of Earth Physics in 2000. The main fundamental research activities were primarily focused on the research in the fields of seismology, seismic sources and seismic sequences and seismic hazard. She is author and coauthor of 37 scientific ISI papers (Hindex 6).
Dr. Iren-Adelina Moldovan, National Institute for Earth Physics
Iren Adelina MOLDOVAN graduated the Faculty of Physics, Bucharest University in 1990. She took her PhD in the field of Earth Physics in 2002. Since 2016 she is the head of Research Development and Innovation in Earth Sciences Department, from INCDFP. The main fundamental research activities she was involved in are related to seismic hazard and risk assessment and earthquake forecasting and her main applied research activities were focused on the onset, development and optimization of a geophysical network needed for the complex monitoring of earthquakes related phenomena. She is author and coauthor of 34 scientific ISI papers (Hindex 6), (Web of Science ResearcherID, AAC-7990-2020).
Dr. Mircea Radulian, National Institute for Earth Physics
Mircea RADULIAN graduated the Faculty of Physics, University of Bucharest (1979) and PhD in Physics of the Earth - Institute for Atomic Physics, Bucharest (1999). The current position is Senior researcher, President of the Scientific Council of the National Institute for Earth Physics. His main fundamental research activities were primarily focused on the research in the fields of seismology, seismicity, seismic source, seismic hazard and risk, microzonation, propagation of seismic waves. He is author or co-author of 220 papers (134 in international journals, 93 in ISI journals), cited 1298 times (with no self-citations), member of Romanian National Committee of Geodesy and Geophysics, titular member of Romania in the European Seismological Commission, titular member of the Romanian Academy of Sciences and Associate Professor – Doctoral School of Physics, University of Bucharest (Faculty of Physics), (ORCID number: http://orcid.org/0000-0003-3044-0114, Web of Science ResearcherID: C-1266-2012) (H index 19).
PhD Student Andrei Mihai, National Institute for Earth Physics
Andrei Mihai graduated from the Faculty of Geology and Geophysics, Bucharest University and obtained the geologist engineer diploma. Now he is a Ph.D. student in the field of Earth Physics and his Ph.D. dissertation title is: ,,Correlations between local geomagnetic field and the seismicity of Vrancea zone”. He is a scientific researcher, with more than two years of experience in the earth sciences research at National Institute for Earth Physics (Romania). Involved in processing the magnetic data and also other types of data: seismic, meteorological, satellite data. His main research domain includes geomagnetism, seismology and tectonics (0000-0002-4354-4863 ORCID).
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