Science. 1993 Jun 11;260(5114):1617-23. doi: 10.1126/science.260.5114.1617.
The magnitude 7.3 Landers earthquake of 28 June 1992 triggered a remarkably sudden and widespread increase in earthquake activity across much of the western United States. The triggered earthquakes, which occurred at distances up to 1250 kilometers (17 source dimensions) from the Landers mainshock, were confined to areas of persistent seismicity and strike-slip to normal faulting. Many of the triggered areas also are sites of geothermal and recent volcanic activity. Static stress changes calculated for elastic models of the earthquake appear to be too small to have caused the triggering. The most promising explanations involve nonlinear interactions between large dynamic strains accompanying seismic waves from the mainshock and crustal fluids (perhaps including crustal magma).
1992 年 6 月 28 日发生的 7.3 级兰德斯地震，触发了美国西部大部分地区地震活动的显著突然且广泛增加。这些触发地震发生在距离兰德斯主震最远达 1250 公里（17 个震源尺度）的地方，仅限于持续地震活动区，以及走滑-正断层区。许多触发区域也是地热和近期火山活动的地点。地震弹性模型计算的静应力变化似乎太小，不可能引起触发。最有希望的解释涉及伴随主震地震波的大动态应变与地壳流体（可能包括地壳岩浆）之间的非线性相互作用。
