/'ɜ:θkweɪk; `ɝθ,kwek/ (also quake) n sudden violent movement of the earth's surface 地震.
a sudden shaking of the earth's surface that often causes a lot of damage
An earthquake measuring 6.1 on the Richter scale struck southern California on June 28.
The city is in an earthquake zone.
1. Experimental data seem to indicate that the amount of radon (Rn) in the water under the surface of the Earth waxes before an earthquake. 实验数据似乎表明，地震前地下水中氡的含量会增高。
2. Earthquake survival supplies include a radio receiver, a torch, extra batteries, first-aid supplies, a spade, a tent, some rope, and warm clothing. 地震救生储备还包括无线电接收器、手电、备用电池、急救用品、铁锹、帐篷、绳子和保暖衣物。
3. Every family needs to have earthquake emergency plans. 每个家庭都需要制定地震救急计划。
4. Education concerning how to survive an earthquake should be a major emphasis for all government programs and earthquake-related research projects. 教育人们如何在地震中幸存下来，应该是所有政府规划和地震研究项目的重点所在。
5. Before the Hanshin earthquake in Japan, there were reports of large schools of fish swimming near the surface of the water. 日本的阪神地震发生之前，有报告说大批鱼群游到了水面。
6. Besides working to improve building structures, people in areas where earthquakes are common need to prepare for the possibility of a great earthquake. 除了设法改善建筑结构外，地震频发区的人们也需要为可能发生的大地震做好防备工作。
7. When the instrument is situated at more than 700 miles from the earthquake centre, 如果把这种仪器安装在距震源700多英里远的地方，
8. The strong earthquake left death and destruction behind it. 强烈的地震留下了死亡和破坏。
9. Thousands of people perished in the earthquake. 那次地震死者数以千计.
10. The ground vibrated during the earthquake. 地震时地面震动。