“We don't know what caused the booms that people have heard, but I can tell you they were not earthquakes,” said Leslie C. Gordon, geologist and spokeswoman for the U.S. Geological Survey for the Pacific Northwest.
Gordon said she checked with the University of Washington, which runs the seismic network in the Pacific Northwest, to see if there had been any seismic activity in the area.
“It is clear that the 'boom' was transmitted through air, as there was very little coupling with the ground. We looked but could not see anything on our seismograms,” UW researchers replied.
波士顿中国留学生因骚扰民主活动人士被判入狱
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4月24日,来自中国的前伯克利音乐学院学生吴啸雷被美国法院判处九个月监禁。法院要求吴啸雷6月7日前往指定的监禁 […]...
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