PN 16 35 01 05

 

Director proiect Dr.Oros Eugen

Obiective/Rezultate obtinute

Valoare faza (RON)

Campul de tensiune activ si regimul tectonic din regiunile Intra-Carpatice

si zonele adiacente. Constrangeri realiste pentru definirea surselor seismogene

Faza I/2016 :

 

Revizuirea si actualizarea bazei de date seismologice (catalog de cutremure si catalog solutii mecanisme focale)

Obiectivul principal al proiectului: Determinarea campului de tensiune activ si a regimului tectonic in

spatiul Intra-Carpatic si definirea Surselor Seismogene Independente.

Obiectivul fazei: Elaborarea Catalogului cu Solutiile Mecanismelor in Focar.

 

Rezultate

1) un catalog de lucru al solutiilor mecanismelor in focar cu 228 de evenimente (compilatie, sursa: literatura)

2) un catalog de lucru parametric cu 6206 evenimente produse in perioada 1950-2016 (Figura 1) (sursa

buletinul online ISC), care a fost decontaminat ulterior prin eliminarea evenimentelor suspectate a fi

explozii. Prin metoda raportului zi/noapte al numarului de seisme s-au delimitat zonele cu posibile explozii, iar prin analiza vizuala a seismogramelor s-au eliminat evenimentele pentru care s-au indeplinit cumulativ criterii aproximative privind intervalul orar de producere si orele repetitive/zona de explozii (intervalul 05-16 a.m. UT), formele de unda caracteristice (dispersie, unde de suprafata, atenuare vs amplitudine, amppitudini unde S), polaritati pozitive. Dupa decontaminare si validarea datelor primare s-au retinut 1464 evenimente pentru determinarea solutiilor mecanismelor in focar.

 

https://lh4.googleusercontent.com/UuXQJ_4M9kirTSSkmK-zI9uoIXXIbufznrOJsKspjhKSZP7KEN3RpRWXmpQwmdZyiM3lDPMNnUvLrxPxtdh53LE157mnSi6FCmxk8hr9ipTiXxmjK7GtG8OLtVRD7eOdUDNI43yj       

 

Fig.1 (Stanga): Regiunea Intra- Carpatica-limite aproximative (cf. Zugravescu si Polonic, 1997). Distributia epicentrelor evenimentelor seismice inainte de decontaminare (6206 evenimente). Fig.2 (Dreapta):Distributia cutremurelor cu solutii ale mecanismelor in focare (re)determinate in cadrul proiectului



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31.05.2016

  

Faza II/2017:

 

Modele ale campului de tensiuni activ si ale regimului tectonic si definirea surselor seismogene

Obiective

Investigarea campului de tensiuni active si a regimului tectonic pe baza inversiei formale a solutiilor mecanismelor focale

Rezultate 

1.       Determinarea tensorului tensiune regional si local prin inversia formala a solutiilor mecanismelor focale determinate in prima faza a proiectului;

2.       Modele 2D ale campului de tensiune  descrise prin tensiunea orizontala, regimul de tensiune si regimul tectonic;

3.       Identificarea structurilor cu potential seismogen pe baza mecanismelor focale medii teoretice compatibile cu campul de tensiuni active si prin discriminarea faliilor seismice din solutiile mecanismelor in focar;

4.       metodologie pentru definirea surselor seismogene.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 































Metodologia elaborata pentru definirea surselor seismogene prin introducerea constrangerilor derivate din modelul campului de tensiune a fost aplicata cu succes in zona de Vest a Romaniei (Zona Seismogena Banat). Prin aplicarea criteriilor adoptate pentru discriminarea faliilor seismice din solutiile mecanismelor focale s-au identificat structurile geologice vulnerabile cu potential de reactivare sub actiunea campului de tensiuni active, structuri care se coreleaza foarte bine cu tectonica cunoscuta la nivelul subasmentului. De asemenea s-au putut identificat tipurile de falieri cele mai probabile caracteristice fiecarei structuri geologice. Rezultatele fazei au constituit subiectul unor lucrari publicate/trimise pentru publicare si la reviste de impact in mediul academic intern si international (reviste cotate/indexate ISI, volume la edituri nationale si internationale) si au fost communicate in cadrul organizat, la manifestari stiintifice din tara si strainatate cu comintete stiintifice.

Comunicari Stiintifice:

In tara

1.   Oros E., Popa M., Diaconescu M. (2017). The seismogenic sources from the West and South_West of Romania. The 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, 14-17, June, 2017, Bucharest, Romania.

2.   Diaconescu Mihail, OROS Eugen, Craiu Andreea, Placinta Anca Otilia. Seismotectonic characterization of the South-Western part of Southern Carpathians. 6th National Conference on Earthquake Engineering& 2nd National Conference on Earthquake Engineering and Seismology, 14 – 16 Iunie 2017, Bucuresti, Romania.

3.   Oros E., Popa M., Diaconescu M., Radulian M. (2017). Active stress field and seismotectonic features in Intra-Carpathian region of Romania, Seminar Stiintific, INFP, 22.06.2017, Bucuresti, Romania

4.   Oros E., Placinta A. O., Diaconescu M., Popa M. (2017). The seismicity, active stress pattern and seismotectonic setting in the western territory of Romania-  the cas of Banloc-Voiteg seismogenic area.17th International Balkan Workshop on Applied Physics and Materials Science, IBWAP 2017 (11-14, July, 2017), Constanta, Romania.

5.   Diaconescu Mihail, Craiu Andreea, OROS Eugen, Constantinescu Eduard Gabriel, Popescu Emilia. Geotectonic characteristics of the Hateg Basin. 17th International Balkan Workshop on Applied Physics and Materials Science, IBWAP 2017 (11-14, July, 2017), Constanta, Romania

In strainatate:

1.   OROS Eugen, Popa Mihaela, Dioaconescu Mihail, Radulian Mircea. Active stress field and seismotectonic features in Intra-Carpathian region of Romania, EGU General Assembly 2017, 23–28 April 2017, Viena, Austria.

2.   OROS Eugen., Popa Mihaela, Constantinescu Eduard Gabriel, Diaconescu Mihail. Stress field, seismicity and seismotectonic features in the Apuseni Mts area. 17th International Scientific GeoConference SGEM 2017, 27 June - 6 July, 2017, Albena, Bulgaria.

3.   OROS Eugen, Placinta Anca Otilia, Diaconescu Mihail, Popa Mihaela. The seismicity, active stress pattern and seismotectonic setting in the western territory of Romania-  the cas of Banloc-Voiteg seismogenic area.17th International Balkan Workshop on Applied Physics and Materials Science, IBWAP 2017 (11-14, July, 2017), Constanta, Romania.

4.   Zaharia Bogdan, Grecu Bogdan, Popa Mihaela, OROS Eugen, Radulian Mircea. Crustal structure in the western part of Romania from local seismic tomography. World Multidisciplinary Earth Sciences Symposium (WMESS 2017), 11 - 15 Sep 2017, Praga, Republica Ceha.

5.   OROS Eugen, Popa Mihaela, Rogozea Maria. Calibration of crustal historical earthqaukes from Intra - Carpathian region of Romania. World Multidisciplinary Earth Sciences Symposium (WMESS 2017), 11 - 15 Sep 2017, Praga, Republica Ceha.

Publicatii:

In tara:

1.   Diaconescu Mihail, Craiu Andreea, OROS Eugen, Constantinescu Eduard Gabriel., Popescu Emilia. Geotectonic characetristics of the Hateg Basin. 17th International Balkan Workshop on Applied Physics and Materials Science, IBWAP 2017 (11-14, July, 2017), Constanta, Romania.  ROMANIAN REPORTS IN PHYSICS (trimisa)

2.   OROS Eugen, Popa Mihaela, Diaconescu Mihail. The seismogenic sources from the West and South_West of Romania. ROMANIAN REPORTS IN PHYSICS (trimisa)

3.   OROS Eugen, Popa Mihaela, Diaconescu Mihail. The seismogenic sources from the West and South_West of Romania. 6th Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, PROCEEDINGS, Edited by Florin Pavel, Mircea Radulian, Cristian Arion, Mihaela Popa, Alexandru Aldea,  Bucharest, June 14-16, 2017, CONSPRESS PUBLISHING HOUSE, Bucharest, ISSN 2559-3943, p. 121-128

In strainatate:

1.   OROS E., Constantinescu E. G., Diaconescu M., Popa M. (2017). Stress field, seismicity and seismotectonic features in the Apuseni Mts area. PROCEEDINGS 17th International Scientific GeoConference SGEM 2017, Science and Tehnologies in geology, Exploration and Mining, Issue 14, Applied and Enviromental Geophysics, Oil and Gas Exploration, vol 17, pp 421 – 428.

2.   Diaconescu M., Craiu M. G., OROS E., Craiu A., Constantinescu E. G. (2017). Seismicity of Strei-Hateg Basin. PROCEEDINGS 17th International Scientific GeoConference SGEM 2017, Science and Tehnologies in geology, Exploration and Mining, Issue 14, Applied and Enviromental Geophysics, Oil and Gas Exploration, vol 17, pp 371 - 381.

3.   Zaharia B., Grecu B., Popa M., OROS E., Radulian M. (2017). Crustal structure in the western part of Romania from local seismic tomography. World Multidisciplinary Earth Sciences Symposium (WMESS 2017), 11 - 15 Sep 2017, Praga, CONFERENCE PROCEEDINGS. Vol. IOP EARTH AND ENVIRONMENTAL SCIENCES (acceptata)

4.   Oros E., Popa M., Rogozea M. (2017). Calibration of crustal historical earthquakes from Intra-Carpathian region of Romania, World Multidisciplinary Earth Sciences Symposium (WMESS 2017), 11-15 Sep 2017, Praga, CONFERENCE PROCEEDINGS. IOP EARTH AND ENVIRONMENTAL SCIENCES (acceptata)

5.   Oros E., Popa M., Diaconescu M. (2017). The seismogenic sources from the West and South-West of Romania. The 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, 14-17, June, 2017, Bucharest, Romania, in PROCEEDINGS + capitol volum Editura SPRINGER –acceptata)

6.   Oros E. (2017). On the seismotectonic properties in the West of Romania. (in pregatire pentru trimitere la publicare: Geologia Carpathica sau Carpathian Journal of Earth and Enviromental Sciences)


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02.05.2017

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