caa a22 4500 477047661 CHVBK 20180405111334.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF00876441 doi (NATIONALLICENCE)springer-10.1007/BF00876441 Temporal variations in the fractal properties of seismicity in the North Anatolian Fault Zone between 31°E and 41°E [Elektronische Daten] [Ali Öncel, Ian Main, Ömer Alptekin, Patience Cowie] We investigate the nature of temporal variations in the statistical properties of seismicity associated with the North Anatolian Fault Zone between longitudes 31°-41°E during the instrumental period 1900-1992. Temporal variations in the seismicb value and the fractal (correlation) dimensionD c of earthquake epicenters are examined for earthquakes of magnitudeM S ≥4.5, using sliding windows of 100 consecutive events.b varies temporally between 0.6 and 1.0, andD c between 0.6 and 1.4, both representing significant fluctuations above the errors in measurement technique. A strong negative correlation (r=−0.85) is observed betweenb andD c , consistent with previous observation of seismicity in Japan and southern California. Major events early in this century (M S ≥7) are associated with lowb and highD c , respectively consistent with greater stress intensity and greater spatial clustering of epicenters—both implying a greater degree of stress concentration at this time. Birkhäuser Verlag, 1996 Seismicity nationallicence fractal dimension nationallicence North Anatolian fault zone nationallicence Öncel Ali Department of Geophysical Engineering, Istanbul University, Avcilar, 34850, Istanbul, Turkey aut Main Ian Department of Geology and Geophysics, University of Edinburgh, EH9 3JZ, Edinburgh, UK aut Alptekin Ömer Department of Geophysical Engineering, Istanbul University, Avcilar, 34850, Istanbul, Turkey aut Cowie Patience Department of Geology and Geophysics, University of Edinburgh, EH9 3JZ, Edinburgh, UK aut pure and applied geophysics Birkhäuser-Verlag 147/1(1996-06-01), 147-159 0033-4553 147:1<147 1996 147 24 https://doi.org/10.1007/BF00876441 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00876441 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Öncel Ali Department of Geophysical Engineering, Istanbul University, Avcilar, 34850, Istanbul, Turkey aut NATIONALLICENCE 700 1- Main Ian Department of Geology and Geophysics, University of Edinburgh, EH9 3JZ, Edinburgh, UK aut NATIONALLICENCE 700 1- Alptekin Ömer Department of Geophysical Engineering, Istanbul University, Avcilar, 34850, Istanbul, Turkey aut NATIONALLICENCE 700 1- Cowie Patience Department of Geology and Geophysics, University of Edinburgh, EH9 3JZ, Edinburgh, UK aut NATIONALLICENCE 773 0- pure and applied geophysics Birkhäuser-Verlag 147/1(1996-06-01), 147-159 0033-4553 147:1<147 1996 147 24 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer