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Earthquake catalogues for Romania supply for 11th–15th century earthquakes located in the region of Vrancea records that consist
of a complete set of parameters, including magnitude and depth. Scope of this paper is to verify the reliability and consistency
of these parameters with the informative background as explicitly referenced by the catalogues. After retrieving the original
sources they mention, the set of data appeared to be related almost exclusively to the Russian plain and too poor to be at
the very origin of the parameter assessment. Data for 19th–20th century earthquakes, such as instrumental locations and CMT
solutions, added to the understanding of the macroseismic response of the Russian plain to Vrancea earthquakes. On the one
hand, the investigation and analysis of historical earthquake records for the fourteen events listed by the catalogues in
the 11th–15th centuries has shown that for three earthquakes (1022, 1038, 1258) no primary sources could be traced, and three
more earthquakes (1091, 1170 and 1328) are attested only by scarcely reliable records and had to be classified as doubtful,
and one (1473) is simply a duplication of the 1471 event. On the other hand, the availability of data on recent earthquakes
that may be compared to historical ones in terms of macroseismic effects allowed the authors to agree with the previous catalogue
compilers’ solution with regard to both magnitude and depth of the past earthquakes for which do exist reliable primary historical
records. 相似文献
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The “9th International Symposium on the Ordovician System, 7th International Graptolite Conference & Field Meeting of the International Subcommission on Silurian Stratigraphy” commenced on August 12,2003, by receiving in San Juan City to all participants of the pre-symposia field trip through the Precordillera of Mendoza and San Juan provinces, western Argentina. On August 13, the field trip began with the purpose to show significant Lower Paleozoic outcrops from diverse settings of the Precordillera geological province. This fivedays excursion was led by Drs. S. H. Peralta. 相似文献
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《《幕》》2008,31(4):436-437
August was an intense and busy month for many geologists as the large 33rd IGC meeting was held in Oslo, Norway, from 6 to 14 August. Over 6,000 scientists from 113 countries contributed talks, posters and discussions at the IGC on a broad range of geo- logical topics. The congress was preceded and followed by as many as 30 fieldtrips coveting Scandinavian geology. 相似文献
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During the whole 20th century in China, especially the latest 50 years, we have gotten much geological information about geological mapping, geophysics, geochemistry, mineral exploration,remote sensing, environmental geology, hydrogeology, engineering geology and oceanic geology etc. by our geologists and explorers. All the information has been accmnulated and can be used as a dcision-making foundation for the future plan of geological survey. The spatial database of geological survey ex-tents has been established by using computer technology. The database contained all kinds of exploration sections and collected about 160 000 records in this database. This paper introduces the data construc-tion ,contents and applying systemof this database, and trys to let people know what kinds of geological survey were finished, when the exploration were carried out, and how and where you can get this infor-mation. 相似文献
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Yu. M. Pushcharovsky 《Geotectonics》2006,40(4):325-326