Journal of Seismology
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Aftershocks hazard in Italy Part I: Estimation of time-magnitude distribution model parameters and computation of probabilities of occurrence
Journal of Seismology - Tập 7 - Trang 235-257 - 2003
We analyzed the available instrumental data on Italian earthquakes from1960 to 1996 to compute the parameters of the time-magnitudedistribution model proposed by Reasenberg and Jones (1989) andcurrently used to make aftershock forecasting in California. From 1981 to1996 we used the recently released Catalogo Strumentale deiTerremoti `Italiani' (CSTI) (Instrumental Catalog Working Group, 2001)joini...... hiện toàn bộ
Detection capability of seismic network based on noise analysis and magnitude of completeness
Journal of Seismology - Tập 18 - Trang 137-150 - 2013
Assessing the detection threshold of seismic networks becomes of increased importance namely in the context of monitoring induced seismicity due to underground operations. Achieving the maximum possible sensitivity of industrial seismic monitoring is a precondition for successful control of technological procedures. Similarly, the lowest detection threshold is desirable when monitoring the natural...... hiện toàn bộ
Low-frequency scaling applied to stochastic finite-fault modeling
Journal of Seismology - - 2013
Stochastic finite-fault modeling is an important tool for simulating moderate to large earthquakes. It has proven to be useful in applications that require a reliable estimation of ground motions, mostly in the spectral frequency range of 1 to 10 Hz, which is the range of most interest to engineers. However, since there can be little resemblance between the low-frequency spectra of large and small...... hiện toàn bộ
Roman literary and epigraphic sources for the study of historical seismicity in Algeria circa 42–420 ad
Journal of Seismology - Tập 18 - Trang 277-287 - 2013
The seismicity of Algeria since the nineteenth century is relatively well documented. However, compared with the numerous damaging earthquakes that are documented since 1850, fewer than a dozen reports of earthquakes are listed for the pre-1850 ad period, suggesting that the historical record is missing a substantial number of earthquakes. This paper examines the use of literary and epigraphic sou...... hiện toàn bộ
On the seismic wave attenuation at the bend of the Southeastern Carpathians
Journal of Seismology - Tập 27 - Trang 233-240 - 2022
1-D models for the quality factor along a few profiles crossing the Vrancea region and the adjacent extra-Carpathian zone have been recently developed, to reconstruct the ground motion generated by weak-to-moderate crustal earthquakes of Vrancea. The retrieved Q-structures reveal a consistent pattern of high attenuation at the bend of the Southeastern Carpathians. We discuss this result in relati...... hiện toàn bộ
QLg wave tomography beneath Norway
Journal of Seismology - Tập 23 - Trang 151-164 - 2018
The propagation of seismic waves is influenced by changes in crustal structure as for example the transition from continental to oceanic crust along the Norwegian margin. We analyzed Lg wave propagation to map lateral crustal changes in Norway and adjacent areas. We used 1369 observations from 279 earthquakes recorded mostly by the Norwegian National Seismic Network between 1990 and 2017. First, w...... hiện toàn bộ
Spatiotemporal evolution of the completeness magnitude of the Icelandic earthquake catalogue from 1991 to 2013
Journal of Seismology - Tập 21 - Trang 615-630 - 2016
In 1991, a digital seismic monitoring network was installed in Iceland with a digital seismic system and automatic operation. After 20 years of operation, we explore for the first time its nationwide performance by analysing the spatiotemporal variations of the completeness magnitude. We use the Bayesian magnitude of completeness (BMC) method that combines local completeness magnitude observations...... hiện toàn bộ
Resonance frequency of an orthotropic layer to non-principal vertically incident SH body and surface waves
Journal of Seismology - Tập 27 - Trang 789-804 - 2023
In this study, non-principal waves propagating in an isotropic elastic half-space covered by an orthotropic layer are examined. The main objective is to establish a formula for the SH transfer function induced by an vertically incident SH wave and a formula for the H/V ratio of surface waves. The peak frequencies of both the SH transfer function and the H/V ratio curve are examined for models with...... hiện toàn bộ
New data on the Indus Kohistan seismic zone and its extension into the Hazara–Kashmir Syntaxis, NW Himalayas of Pakistan
Journal of Seismology - - 2009
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