3. These technological developments have brought humanity to the brink of great opportunities, said American Geophysical Union president John Orcutt at a meeting of the group last week in San Francisco. A few of many instances of such opportunities presented at the meeting illustrate this.
3、美国地球物理学会主席约翰奥克特在该组织上周于旧金山召开的会议上指出,这些技术上的发展已使人类十分接近大好机遇。这次会议上介绍了与这些机遇相关的许多实例,其中几个说明了这一点。
4. Scientists at the Scripps Institution of Oceanography in La Jolla, Calif., where Dr. Orcutt is deputy director, have developed a way to use the worldwide seismic observing network to image earthquake ruptures. Within 30 minutes or less, they can trace the entire crustal rupture that produces a quake anywhere in the world. This information is much more valuable than merely pinpointing the quake epicenter. This is important for tsunami warning systems in which you need to know a pathnot just the original locationof an earthquake, explains Scripps scientist Peter Shearer.
4、由奥克特博士任副所长的加利福尼亚拉霍亚市斯克里普斯海洋研究所的科学家们已经开发出一种利用全球地震监控网络来形象地描绘地表断裂的方法。在30分钟或更短的时间内,他们就能完整地追踪到地球上任何一处导致地震的地壳断裂带。这一信息比仅仅确定震中的位置要有价值得多。斯克里普斯的科学家彼得希勒解释说:这对于海啸预警系统来说很重要,因为在预警过程中,不仅仅需要知道震源所在,而且需要了解地震波的路径。
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