单词：usgs
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This is Whats Trending Today. Earthquakes are not uncommon in southern California. Citizens there know how to react and respond if the ground starts shaking. On Wednesday night, many of them received an email from the U.S. Geological Survey that warn
2017年VOA慢速英语(六)月
This is Whats Trending Today. Earthquakes are not uncommon in southern California. Citizens there know how to react and respond if the ground starts shaking. On Wednesday night, many of them received an email from the U.S. Geological Survey that warn
2017年VOA慢速英语(六)月
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To be honest with you, I didnt feel a thing. But many other Scientific American staffers felt the shaking a few minutes before 2 P.M. Eastern time. After checking Twitter
Scientific American(八)月
HONG KONG, Dec. 8 (Xinhua) -- An earthquake measuring 5.6 on the Richter scale jolted off the east coast of Honshu, Japan at 23: 00:02 GMT on Friday (07:00:02 Beijing Time), the U.S. Geological Survey said. The epicenter, with a depth of 34.20 km, wa
英语新闻
Extreme ice melting led to thousands of walruses making an unusual gathering on the barrier island in Alaska. Biologists with the U.S. geological survey say the situation can be very dangerous, because walruses are easily startled and can't stampede.
自然百科2010年
Californians participated in an annual drill, and helped prepare for what scientists say could strike at any moment, an earthquake. Scientists have also been busy preparing. The US Geological Survey recently unveiled its new earthquake alert system c
VOA标准英语2019年(二月)