brandiburu1
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ar trebui sa \"loveasca\" mai multe, in acelasi timp si sa fie foarte puternice. mai greu asa ceva daca nu aproape imposibil... parerea mea.
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Intr-adevar, in cazul din 1986 a existat un studiu al unor factori precursori, o evidentiere a unor anomalii aparute in activitatea seismica vranceana de dupa anul 1980, anomalii care au fost mai pronuntate in special in perioada 1985-1986 ! Aceste anomalii au inclus, intre altele, activitati seismice de tip crustal (de mica adancime) anormal de intense in Vrancea, migratii/progresii hipocentrale pe verticala, scheme prelungite de calm seismic, explozii de activitate, activizari urmate de latente anormale etc.
Cand a fost invitat la Cristoiu acu vreo 2 luni , Marmureanu a zis ca urmatorul cutremur va fi ca cel din 1802 . Se referea probabil la etajul de adincime si directivitatea spre Moldova . Cat despre magnitudine a zis ca va fi mai mare decit cel din 1977
DETERMINISTIC HAZARD ASSESSMENT IN ROMANIAN CARPATHIANS AREA
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Vrancea Earthquakes - Characteristics
The seismicity of the Vrancea region in the SE - Carpathians is characterized by intermediate depth seismicity in an amazingly narrow epicentral and hypocentral region. The epicentral area is confined to about 20 x 60 km. Strong earthquakes occur between 70 and 180 km depth within an almost vertical column. Deeper and shallower events have been recorded but only with small magnitudes. Depth and estimated moment magnitude of all instrumentally recorded events are summarized in the figures below after Oncescu & Bonjer (1996). The depth interval of the strong events is bounded by levels of low seismicity between 40 and 60 km and beneath 180 km. The Mw = 3.7 event clearly represents an exception. The ruptured areas migrated from 150 - 180 km (1940) to 90 - 110 km (1977) to 130 - 150 km (1986) to 70 - 90 km (1990). [The depth interval between 110 and 130 km remained unruptured since at least 150 years. This depth is a natural candidate for the next strong Vrancea event.
Rupture extent with depth and moment magnitudes for all instrumentally recorded Vrancea earthquakes which caused major damage. It is a fair assumption that the next strong event will rupture the depth interval around 120 km. {Exact zippy99, am uitat de Fig. 1. Merci!}
(paragraf din pag. 15)
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Document preluat acum 4-5 ani de la INFP.
referitor la chestia cu ultravioletele, am gasit o harta destul de \\"interesanta\\". priviti: http://www.accuweather.com/world-maps.asp?partner=accuweather&traveler=0&site=ro&type=uvi&fday=1
asadar mai toata Romania este , in acest moment, bombardata de aceste radiatii la un nivel foarte mare. prea putine zone scapa \\"mai ieftin\\".
asadar daca am avea un cutremur care sa corespunda acestei zone... nu stiu ce sa zic, vad ca si transilvania ar fi destul de bine afectata. si, din cate stiu, acolo se resimt mai putin aceste miscari.
apropo, bucurestiul este trecut la categoria \\"extrem\\". asa ca activitatile care se desfasoara in aer liber ar trebui suspendate dar noi nu suntem, de exemplu, Ungaria, ca sa avem oameni care sa se gandeasca si la acest aspect.