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The paper presents information on the seismic observation network of Belarus and describes in detail the development of instrumental observations in the region. The seismicity of the territory of Belarus has been thoroughly studied in recent years. The data available on earthquakes in the Belarussian territory were refined from literature and archive evidences, historical earthquakes near Mogilev were revealed. The Catalogue includes the results of continuous instrumental observations for 1965–2009 described in bulletins of seismic stations. An analysis of the location of earthquake epicenters suggests their uneven distribution over the area. Epicenters of low-magnitude earthquakes are abundant in the southern regions of Belarus and are confined to a zone of junction of the Pripyat Trough northwestern part and the Belarussian Anteclise. The induced seismicity of the Soligorsk mining region has been investigated. The investigation involved an analysis of dynamics of the annual space and time migration of epicenter grouping zones, which depends on the pattern of the induced changes of the present crust dynamic stress field. Seismic events are mainly confined to recent active fault zones.

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Notable clustering effects in seismic activity are observed at the sharp bend of the South-Eastern Carpathians both at subcrustal and crustal domains. The seismic energy release is strongly increasing with depth, where apparently the principal source controlling the geodynamics of the entire system is located. New developments of instrumental monitoring and relatively extended historical data spanning several seismic cycles in Vrancea allow refined analyses of earthquake patterns, outlining high-resolution images of specific alignments of seismicity in the Vrancea region. Refined joint locations are carried out for the most recent earthquakes, produced after 1995. In parallel, a new approach has been implemented to produce numerical simulations of the Vrancea seismic cycle and to reproduce its main characteristics: return period, main shock magnitude, depth location, non-linear frequency-magnitude distribution, aftershock activity and their variability from one cycle to other.

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Suddenly, Aswan Seismic Network detected and observed a number of events beside Aswan city. The magnitude of these events ranged from 0.9 to 2.6. These events were considered very important events because they were located not far from the Aswan High Dam. The main purpose of this work is to investigate and identification of these events using different seismic methods. Small earthquakes and explosions have the same flat and displacement spectrum for short-period P waves and discrimination of small events rests on detection and location. The final result appears that the source of these events is not an artificial type.

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The paper deals with the earthquakes that took place in the Kaliningrad region (Russia) on 21 September 2004 and were felt in the territories of Poland, Lithuania, Latvia, Estonia, Belarus and Finland. Data on space and time co-ordinates and dynamic parameters of these earthquake foci available from  international centers and various seismological groups are analyzed. A degree of reliability of the results obtained is discussed.   The epicentral zone of the Kaliningrad earthquakes is found within the western part of the old East European Platform (EEP). The seismotectonic map presenting the territories of Belarus and the Baltic States was considered, and the Kaliningrad-Lithuanian potential seismogenic area was analyzed. Methods used to outline possible earthquake zones when seismic zoning of the  Belarusian-Baltic region was carried out were verified in practice and, actually, made possible a long-term forecast of earthquake origination in Kaliningrad. 

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The investigations of seismicity, tectonics and geology of the territory of Republic of Macedonia that have been performed so far have pointed out the direct relationship between the earthquake occurrence and tectonic processes. To define a seismogene source and earthquake occurrence, it is necessary to know the geological evolution of the terrain particularly in contemporary conditions. In the investigated area, earthquakes have exclusively been of a tectonic origin wherefore the greatest attention has been paid to the activity of the fault structures in the Vardar zone, the correlation between the epicenters of occurred earthquakes and the geological media through which the seismic waves propagate. The seismotectonic map of the Vardar zone clearly shows that the stretching direction of the fault structures correlates with the epicenters of occurred earthquakes. The seismicity model formulated on the basis of data from the seismological and seismotectonic investigations of the region has been the starting point in defining the seismic hazard. Two approaches have been proposed for definition of a seismic model to be used in defining the seismic hazard. A comparison between these models has also been made.

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Three-dimensional gravity modeling has been performed for the Eastern Mediterranean including the northeastern Egyptian off-shore area. The gravity models and seismic profiles indicate that a transition from two layer continental crust to a simple layer oceanic crust takes a place along the Levantine margin. The transition along three profiles is located beyond the north African continental margin and it is quite gradual. The crust under the Levantine basin is typically oceanic and slightly thin with 13 km thickness, however it is typical continental under the Egyptian off-shore and having 30 km thickness. The obtained results reflect a large sedimentary sequence of 14 km under the Levantine basin. Since the sediments recovered by the Oceanic Drilling Program Leg160 in the eastern Mediterranean ranged from Pleistocene to Cretaceous, this reflects fairly high sedimentation rate. Distribution of recent earthquake foci indicates that almost all earthquakes occurred along the western and central segments of the Cyprean arc while they completely disappear along the eastern segment. This means that collision between Cyprus and the Eratosthenes seamount is marked by seismic activity and clearly affects the shape of the Cyprean arc. This collision represents a transition zone between active compression and probable subduction in the western segment and diffuse transtension through the eastern part of the arc. Incipient collision between Cyprus and Eratosthenes seamount probably began in Pleistocene time.

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Hampson, D., J. S. Schuelke, J. A. Quirein 2001: Use of multiattribute transforms to predict log properties from seismic data. - Geophysics, 66, pp. 220 - 231 . Use of multiattribute transforms to predict log properties from

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1 Introduction Steel moment-resisting frame structures located in high seismic hazard zones are susceptible to excessive lateral deformations during strong ground motions. Some of these structures were designed according to strength-based codes, and

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This work focuses on the assessment of seismic risk issues associated with the potassium salt deposit of Provadia and Soligorsk, with the monitoring provided by Belarusian and Bulgarian specialists in the framework of a bilateral project.  The long-term studies 1983-2005 of the only terrestrial Bulgarian salt deposit (Provadia, φ = 43.06ºN, λ = 27.45ºE) and Belarusian (Starobin φ = 52.84ºN, λ = 27.47ºE) in connection with the observed higher seismic activity and probable manifestations of technogenic seismicity in the region is presented.  The characteristic features of the seismic processes as the identity of the curves of recurrence of seismic events of the energy range of 4-8 are discussed. A quasi-periodic character of the seismicity activation in time against the general trend of seismicity activation is established. It is shown that the zones of the epicenters of the seismic events are larger that mining areas.  Some differences in the pattern of seismic processes, such as: 1. the seismic activity in the range of small energies (K=4-8) is higher in the Soligorsk region; 2. events of the higher energy class, K≯9 are characteristic of the Provadia region. 

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AISC 341-05, Seismic provisions for structural steel buildings, American Institute for Steel Construction , 2005. NBCC, National building code of Canada, Institute for Research in

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