Viscosity of oceanic asthenosphere inferred from remote triggering of earthquakes

被引:156
作者
Pollitz, FF [1 ]
Bürgmann, R
Romanowicz, B
机构
[1] Univ Calif Davis, Dept Geol, Davis, CA 95616 USA
[2] Univ Calif Berkeley, Seismol Lab, Berkeley, CA 94720 USA
关键词
D O I
10.1126/science.280.5367.1245
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A sequence of large interplate earthquakes from 1952 to 1965 along the Aleutian are and Kurile-Kamchatka trench released accumulated stresses along nearly the entire northern portion of the Pacific Plate boundary. The postseismic stress evolution across the northern Pacific and Arctic basins, calculated from a viscoelastic coupling model with an asthenospheric viscosity of 5 x 10(17) pascal seconds, is consistent with triggering of oceanic intraplate earthquakes, temporal patterns in seismicity at remote plate boundaries, and space-based geodetic measurements of anomalous velocity over an area 7000 by 7000 kilometers square during the 30-year period after the sequence.
引用
收藏
页码:1245 / 1249
页数:5
相关论文
共 64 条
[1]  
Abe K., 1973, Physics of the Earth and Planetary Interiors, V7, P143, DOI 10.1016/0031-9201(73)90004-6
[2]   BERING SEA EARTHQUAKE OF FEBRUARY 21, 1991 - ACTIVE FAULTING ALONG THE BERING SHELF EDGE [J].
ABERS, GA ;
EKSTROM, G ;
MARLOW, MS ;
GEIST, EL .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1993, 98 (B2) :2155-2165
[3]   ACCELERATED PLATE TECTONICS [J].
ANDERSON, DL .
SCIENCE, 1975, 187 (4181) :1077-1079
[4]   RUPTURE PROCESS OF THE FEBRUARY 4, 1965, RAT ISLANDS EARTHQUAKE [J].
BECK, SL ;
CHRISTENSEN, DH .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1991, 96 (B2) :2205-2221
[5]   DYNAMIC INTERACTION OF SEISMIC ACTIVITY ALONG RISING AND SINKING EDGES OF PLATE BOUNDARIES [J].
BERG, E ;
SUTTON, GH ;
WALKER, DA .
TECTONOPHYSICS, 1977, 39 (04) :559-578
[6]   OCEANIC INTRAPLATE EARTHQUAKES - IMPLICATIONS FOR LOCAL AND REGIONAL INTRAPLATE STRESS [J].
BERGMAN, EA ;
SOLOMON, SC .
JOURNAL OF GEOPHYSICAL RESEARCH, 1980, 85 (NB10) :5389-5410
[7]  
BOYD TM, 1988, B SEISMOL SOC AM, V78, P1653
[8]   SEISMIC CYCLES ALONG THE ALEUTIAN ARC - ANALYSIS OF SEISMICITY FROM 1957 THROUGH 1991 [J].
BOYD, TM ;
ENGDAHL, ER ;
SPENCE, W .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1995, 100 (B1) :621-644
[9]   SEISMICITY TRENDS AND POTENTIAL FOR LARGE EARTHQUAKES IN THE ALASKA-ALEUTIAN REGION [J].
BUFE, CG ;
NISHENKO, SP ;
VARNES, DJ .
PURE AND APPLIED GEOPHYSICS, 1994, 142 (01) :83-99
[10]   THE RUPTURE PROCESS AND TECTONIC IMPLICATIONS OF THE GREAT 1964 PRINCE-WILLIAM-SOUND EARTHQUAKE [J].
CHRISTENSEN, DH ;
BECK, SL .
PURE AND APPLIED GEOPHYSICS, 1994, 142 (01) :29-53