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英国《自然·通讯》杂志21日发表的一项研究称,科学家首次检测到一种在地震波到达之前就可观测到的重力信号。这种信号有望改进地震预警时间,推动地震和海啸预警系统研究取得新进展。日本当地时间22日5时59分,日本福岛县附近海域发生7.4级地震。地震经常会造成严重人员伤亡以及种种次生灾害,但当前的科技水平尚无法预测地震的到来,甚至未来相当长的一段时间内,地震也是无法精准预测的。这是
A study published in the 21st issue of the journal Nature & Communications in England said that for the first time, scientists have detected a gravitational signal that can be observed before a seismic wave arrives. Such signals are expected to improve the earthquake early warning time and push forward the research on earthquake and tsunami early warning systems. Japanese local time at 5:59 on the 22nd, Japan’s Fukushima Prefecture 7.4 earthquake near the sea. Earthquakes can often cause serious casualties and secondary disasters, but the current state of science and technology can not predict the arrival of the earthquake. Even the earthquake will not be predicted accurately for a long time to come. this is