The spatial distribution of seismicity is often used as one of the indicators of zones where future large earthquakes are likely to occur. This is particularly true for intraplate regions such as the central and eastern United States, where geology is markedly enigmatic for delineating seismically active areas. Although using past seismicity for this purpose may be intuitively appealing, it is ...

The Quchan fault is located in Quchan - Shirvan area which is a part of Chenaran- Bojnourd plain in Kopeh-Dagh zone, NE Iran. The Quchan active fault with northwest – southeast trending is one of the most important strike-slip faults in the area which its activity led to the numerous historical and instrumental earthquakes. The Neo-tectonic activities of this fault are investigated by the drain...

â â â  the geographical territory of caucasia includes areas which have been referred to, in various forms, in geographical, historical and even literary texts. studies on the history of caucasia in different eras show that not only this region was not originally called by this name, but, later on, this name was not used for what is now modern caucasia. studies show that each part of caucasia w...

The study focuses on the spatial organization of seismicity and the relation between fracture pattern and earthquakes in the Friuli (north-eastern Italy) and western Slovenia seismic regions. The structural setting is characterized by a complex structure resulting from the superposition of several tectonic phases that generated NW-SE trending Dinaric faults and about E-W trending Alpine faults....

Seismicity is a distributed process of great spatial and temporal variability and complexity. Efforts to characterise and describe the evolution of seismicity patterns have a long history. Today, the detection of changes in the spatial distribution of seismicity is still regarded as one of the most important approaches in monitoring and understanding seismicity. The problem of how to best descr...

A wide set of premonitory seismicity patterns is reproduced on a numerical model of seismicity, and their performance in prediction of major earthquakes is evaluated. Seismicity is generated by the Colliding Cascades Model, recently developed by the same authors. The model has a hierarchical structure. It describes the interaction of two cascades: a direct cascade of loading, which is applied t...

A major upgrade of the Global Strain Rate Map, version 2.1, uses far more geodetic data, systematic data processing, more modeled plates and plate boundaries, an improved algorithm, and a finer spatial grid than version 1 (Kreemer et al., 2014). We convert this model to an indefinite-term tectonic forecast of shallow seismicity on a fine global grid, using the assumptions of Bird et al. (2010) ...

The macroseismic and instrumental observations accumulated by the Bureau Central Sismologique Français other national agencies over last 100 years show that northwestern part of metropolitan France is affected an apparently diffuse moderate intraplate seismicity. Far from any plate boundary, well-documented inherited structures, such as Armorican shear zone network, Sillon Houiller, normal faul...

Contents 1. Introduction 2. Seismicity induced by natural processes 2.1. Triggering of earthquakes by the Earth's tide 2.2.Changes of the Earth's rotation speed 2.3. Meteorological processes 2.4. Strong earthquakes 3. Seismicity induced by technogenic impacts 3.1. Creation of large dams and reservoirs 3.2. Oil and gas extraction 3.3. Underground nuclear tests 3.4. Action of powerful electric pu...

The observation of foreshocks preceding large earthquakes and the suggestion that foreshocks have specific properties that may be used to distinguish them from other earthquakes have raised the hope that large earthquakes may be predictable. Among proposed anomalous properties are the larger proportion than normal of large versus small foreshocks, the power law acceleration of seismicity rate a...