6.7地震带
Section outline
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What caused the 2010 earthquake in Angol, Chile?
::智利安戈勒2010年地震的原因何在?Angol, Chile, experienced a huge 8.8 magnitude in February 2010. The earthquake was due to subduction of the Nazca plate beneath South America. This subduction zone is part of the Pacific Ring of Fire .
::2010年2月,智利的安戈勒(Angol)经历了巨大的8.8级地震,地震的起因是纳斯卡板块被潜入南美下方。 这个潜入区是太平洋火圈的一部分。Annual Earthquakes
::每年地震In a single year , on average, more than 900,000 earthquakes are recorded. About 150,000 of them are strong enough to be felt. Each year about 18 earthquakes are major, with a Richter magnitude of 7.0 to 7.9, and on average one earthquake has a magnitude of 8 to 8.9.
::在一年中,平均记录到超过90万次地震,其中约15万次地震的强度足以感知。 每年大约有18次地震是大地震,里氏7.0至7.9级,平均一次地震的强度为8至8.9级。Magnitude 9 earthquakes are rare. The United States Geological Survey lists five since 1900 ( Figure and Table ). All but the Great Indian Ocean Earthquake of 2004 occurred somewhere around the Pacific Ocean basin .
::美国地质调查局列出了自1900年以来的5次地震(图和表)。除2004年大印度洋地震外,所有地震都发生在太平洋盆地附近。The 1964 Good Friday Earthquake centered in Prince William Sound, Alaska released the second most amount of energy of any earthquake in recorded history.
::1964年的耶稣受难节地震以阿拉斯加的威廉王子的声音为中心, 释放了历史上任何地震的第二大能量。Location Year Magnitude Valdivia, Chile 1960 9.5 Prince William Sound, Alaska 1964 9.2 Great Indian Ocean Earthquake 2004 9.1 Kamchatka, Alaska 1952 9.0 Tōhoku, Japan 2011 9.0 Earthquake Zones
::地震区Nearly 95% of all earthquakes take place along one of the three types of plate boundaries .
::所有地震中近95%发生在三种板块边界之一的沿线。- About 80% of all earthquakes strike around the Pacific Ocean basin because it is lined with convergent and transform boundaries ( Figure ). The region around the Pacific is called the Pacific Ring of Fire due to its earthquakes and .
::太平洋海盆周围大约80%的地震袭击是因为它与汇合点和变形边界接壤(图)。 太平洋周围区域由于地震和地震被称为太平洋火圈。
- About 15% take place in the Mediterranean-Asiatic Belt. Convergence is causing the Indian Plate to run into the Eurasian Plate.
::约15%发生在地中海-亚洲带。 融合正在导致印度板块冲入欧亚板块。
- The remaining 5% are scattered around other plate boundaries. A few earthquakes take place away from plate boundaries. These are .
::其余的5%分散在其他板块边界周围。 有一些地震发生在离板块边界的地方。 这些是 。
Earthquake epicenters for magnitude 8.0 and greater events since 1900. The earthquake depth shows that most large quakes are shallow focus, but some subducted plates cause deep focus quakes.
::自1900年以来,有8.0级和更大的地震震源。 地震深度表明,大多数大型地震都是浅度地震,但一些被稀释的板块引发了深点地震。Summary
::摘要- Small earthquakes are extremely common, but the largest earthquakes are extremely rare.
::小地震极为常见,但最大的地震极为罕见。
- The vast majority of earthquakes happen at plate boundaries.
::绝大多数地震发生在板块边界。
- The Pacific Ocean basin has the most earthquakes due to convergent and transform plate boundaries. The Himalaya region has the second most due to the convergence of India and Asia.
::太平洋盆地地震最多的原因是板块边界交汇和变异,其次是印度和亚洲交汇,喜马拉雅山脉地区是第二大地区。
Review
::回顾- Why are most earthquakes at plate boundaries?
::为什么大多数地震都发生在板块边界上?
- What two types of plate motions cause earthquakes around the Pacific Ring of Fire?
::太平洋纵火环周围发生地震?
- What type of plate motions cause the Mediterranean-Asiatic quakes?
::是什么类型的板块运动导致地中海-亚洲地震?
Explore More
::探索更多Use the resource below to answer the questions that follow.
::利用以下资源回答以下问题。- What was the magnitude of the Chilean earthquake?
::智利地震的规模有多大?
- What two plates are converging near Chile that caused the earthquake?
::造成地震的智利附近有两个板块聚集在一起?
- What is the Ring of Fire? What occurs along this Fing of Fire?
::火狱的环是什么?在火刑的边上发生了什么?
- What was the strongest earthquake ever recorded? When did it occur?
::有史以来最强烈的地震记录是什么?是什么时候发生的?
- Why are scientists urging Memphis to adopt building codes similar to Chile's?
::为什么科学家会敦促孟菲斯采用与智利相似的建筑法规?
- About 80% of all earthquakes strike around the Pacific Ocean basin because it is lined with convergent and transform boundaries ( Figure ). The region around the Pacific is called the Pacific Ring of Fire due to its earthquakes and .
