000009438 001__ 9438
000009438 005__ 20141205150206.0
000009438 04107 $$aeng
000009438 046__ $$k2008-10-12
000009438 100__ $$aAshtari Jafari, Mohammad
000009438 24500 $$aThe Distribution of B-Value in Different Seismic Provinces of Iran

000009438 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009438 260__ $$b
000009438 506__ $$arestricted
000009438 520__ $$2eng$$aThe Gutenberg–Richter relation is a well known empirical relation in earthquake seismology which represents the frequency of occurrence of earthquakes as a function of magnitude. The a-value and the b-value are constants of this relation. The a-value is related to the seismic activity and so to the time and the volume of the considered window. The b-value (size distribution) is a measure for the relative abundance of the strong to the weak earthquakes and is considered to be related to the tectonic regime of the area under consideration. The b-value value anomalies may be an indication of the anomaly of the low or the high stress levels, anomaly in the thermal gradient or the crustal heterogeneity. Some studies have discussed the spatial and temporal variations of the b-value before large earthquakes and the spatial variation of the aftershocks. In this paper it has been tried to look into the variations of the b-value and the a-value in different seismic provinces of Iran during last decade. The data has been extracted from the Iranian seismological center (IRSC). Then different relations have been developed for each province.

000009438 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009438 653__ $$aa-value, b-value, Gutenberg–Richter relation, frequency of occurrence, spatial and temporal changes. 

000009438 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009438 720__ $$aAshtari Jafari, Mohammad
000009438 8560_ $$ffischerc@itam.cas.cz
000009438 8564_ $$s506615$$uhttps://invenio.itam.cas.cz/record/9438/files/S02-029.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S02-029.
000009438 962__ $$r9324
000009438 980__ $$aPAPER