caa a22 4500 477047327 CHVBK 20180405111333.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF00874738 doi (NATIONALLICENCE)springer-10.1007/BF00874738 Toward a physical undenstanding of earthquake scaling relations [Elektronische Daten] [Z. Yin, G. Rogers] In seismological literature, there exist two competing theories (the so-calledW model andL model) treating earthquake scaling relations between mean slip and rupture dimension and between seismic moment and rupture dimension. The core of arguments differentiating the two theories is whether the mean slip should scale with the rupture width or with the rupture length for large earthquakes. In this paper, we apply the elastic theory of dislocation to clarify the controversy. Several static dislocation models are used to simulate strike-slip earthquakes. Our results show that the mean slip scales linearly with the rupture width for small earthquakes with a rupture length smaller than the thickness of the seismogenic layer. However, for large earthquakes with a rupture length larger than the thickness of the seismogenic layer, our models show a more complicated scaling relation between mean slip and rupture dimension. When the rupture length is smaller than a cross-over length, the mean slip scales nearly linearly with the rupture length. When the rupture length is larger than a cross-over length, the mean slip approaches asymptotically a constant value and scales approximately with the rupture width. The cross-over length is a function of the rupture width and is about 75 km for earthquakes with a saturated rupture width of 15 km. We compare our theoretical predictions with observed source parameters of some large strike-slip earthquakes, and they match up well. Our results also suggest that when large earthquakes have a fixed aspect ratio of rupture length to rupture width (which seems to be the case for most subduction earthquakes) the mean slip scales with the rupture dimension in the same way as small earthquakes. Birkhäuser Verlag, 1996 Earthquake scaling nationallicence seismic moment nationallicence mean slip nationallicence rupture dimension nationallicence Yin Z. Pacific Geoscience Centre, Geological Survey of Canada, V8L 4B2, Sidney, B.C., Canada aut Rogers G. Pacific Geoscience Centre, Geological Survey of Canada, V8L 4B2, Sidney, B.C., Canada aut pure and applied geophysics Birkhäuser-Verlag 146/3-4(1996-09-01), 661-675 0033-4553 146:3-4<661 1996 146 24 https://doi.org/10.1007/BF00874738 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00874738 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yin Z. Pacific Geoscience Centre, Geological Survey of Canada, V8L 4B2, Sidney, B.C., Canada aut NATIONALLICENCE 700 1- Rogers G. Pacific Geoscience Centre, Geological Survey of Canada, V8L 4B2, Sidney, B.C., Canada aut NATIONALLICENCE 773 0- pure and applied geophysics Birkhäuser-Verlag 146/3-4(1996-09-01), 661-675 0033-4553 146:3-4<661 1996 146 24 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer