Pollitz FF, Burgmann R, Romanowicz B
F. F. Pollitz and R. Burgmann, Department of Geology, University of California, Davis, Davis, CA 95616, USA. B. Romanowicz, University of California Seismological Laboratory, 475 McCone Hall, Berkeley, CA 94720, USA.
Science. 1998 May 22;280(5367):1245-9. doi: 10.1126/science.280.5367.1245.
A sequence of large interplate earthquakes from 1952 to 1965 along the Aleutian arc 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.
1952年至1965年期间，阿留申弧和千岛-堪察加海沟发生了一系列板块间大地震，释放了沿太平洋板块边界几乎整个北部区域积累的应力。根据一个软流圈粘度为5×10¹⁷帕斯卡秒的粘弹性耦合模型计算得出的北太平洋和北极盆地的震后应力演化，与大洋板块内部地震的触发、遥远板块边界地震活动的时间模式以及该序列发生后30年期间7000×7000平方公里区域内基于空间的大地测量异常速度测量结果一致。
