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Last Sunday, an earthquake struck the Napa Valley area of northern California. Some roads bent, while underground pipes burst. It was the strongest earthquake to strike the Napa Valley in 15 years. No one was killed, but many people were treated in hospitals.ä¸å¨æ¥ï¼ä¸åºå°éè¢å»äºç¾å½å å·åé¨ç纳å¸è°·å°åºï¼é æä¸äºé路弯æ²ï¼å°ä¸ç®¡éç ´è£ï¼è¿æ¯15å¹´æ¥çº³å¸è°·å°åºåççæ强大çå°éã没æ人æ»äº¡ï¼ä½æ¯æå¾å¤äººå伤ï¼æ£å¨å»é¢æ¥åæ²»çã
Scientists say the earthquake last weekend was a magnitude 6 quake.ç§å¦å®¶è¯´ï¼ä¸å¨çå°éæ¯6级å°éã
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David Applegate works for the United States Geological Survey. He says Californians are lucky because the earthquake did not cause major damage to water mains â large pipelines that carry water. He notes that a lot of the losses in quakes are from fires because water mains have been broken, and there is no quick way to fix them.大å«Â·è¾ä¼¯çç¹å¨ç¾å½å°è´¨è°æ¥å±å·¥ä½ï¼ä»ç§°ï¼å å·äººæ¯å¹¸è¿çï¼å 为å°é没æ对èªæ¥æ°´æ»ç®¡é(ä¼ è¾æ°´èµæºç大å管é)é æé大æ害ãä»æåºï¼å°éä¸çå¾å¤æ失æ¥èªç«ç¾ï¼å 为èªæ¥æ°´ç®¡éè½æªåå°é大æ害ï¼ä½æ¯ä¹å·²ç»ææåï¼ä¸è½å¾å¿«ä¿®å¤ï¼æ以çç«å°é¾ã
Mr. Applegate says the timing of the quake in Napa may have saved a lot of lives.è¾ä¼¯çç¹ç§°ï¼å¨çº³å¸è°·å°åºåçå°éçæ¶é´ï¼å¯è½æ¯æäºå¾å¤äººççå½ã
âIt happened in the middle of the night. We saw a lot of cases where old brick buildings collapsed onto sidewalks. Those sidewalks were empty.ââ该å°éåçå¨åå¤ï¼æ们çå°å¾å¤å»ºçåå¡å¨äººè¡éä¸ï¼èåå¤æ¶äººè¡éæ¯ç©ºçãâ
He describes that as a stroke of good luck because earthquakes usually come as a surprise.ä»ç§°ï¼è¿æ¬¡è¿æ°å¾å¥½(åçå¨åå¤)ï¼å 为å°éæ»æ¯åºäººææççªè¢ã
âShort-term prediction is not feasible, but what we do know is where large earthquakes occur.ââçæé¢æµæ¯ä¸å¯è¡çï¼ä½æ¯æ们ç¥éåªéæ大å°éä¼åçãâ
This means that scientists can predict the likelihood that an earthquake will hit a given area over the next several years. When a quake begins, however, scientists can warn those in its path.è¿å°±æå³çï¼å¨æªæ¥å å¹´ï¼ç§å¦å®¶å°å¯ä»¥é¢æµåºå¯è½åçå°éçä¸å®èå´å
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âOnce an earthquake starts in one place, we can actually get the characteristics of the event and get an alert out ahead of the strong shaking.ââä¸æ¦ä¸ä¸ªå°æ¹å¼å§åçå°éï¼æ们å¯ä»¥å¾ç¥è¯¥äºä»¶åççç¹ç¹ï¼å¹¶å¨å¼ºéåç»äºäººä»¬è¦åãâ
David Applegate says the warning may not come long before the quake strikes. But he adds that 10 or 20 seconds may be enough to save your life.大å«Â·è¾ä¼¯çç¹ç§°ï¼è¦åå¯è½ä¸ä¼æ©äºå°éåçåï¼ä½æ¯ä»è¡¥å
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Like anything, he says, it is wise to have a plan that includes fresh water and how to find loved ones after the disaster.ä»ç§°ï¼å°±åå
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The people of northern California were lucky in what could have been a far more damaging earthquake. But others have cause for celebration. It seems that Napa Valley will continue exporting wine as usual. That is also likely part of the survival plan.è¿æ¬¡å°éæ¯å¯è½é ææ´é大çæ害ï¼è并没æï¼æ以说å å·åé¨ç人们æ¯å¹¸è¿çï¼ä½æ¯å
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