环太平洋火山带
定义
环绕太平洋的马蹄形地带，全球约90%的地震发生在此区域。它绵延40,000公里，包含452座火山。
示例
日本、智利、印度尼西亚和美国西海岸都位于环太平洋火山带上。
相关术语
相关指南
地震是什么?完整入门指南
Learn what causes earthquakes, how they occur along fault lines, and why some regions experience more seismic activity than others.
地震变得更频繁吗?
It seems like earthquakes are increasing, but improved detection explains the trend. Learn what the data actually shows about earthquake frequency.
地震只发生在断层线上吗?
While most earthquakes occur along faults, intraplate earthquakes can strike far from plate boundaries. Learn where unexpected earthquakes happen.
有些国家对地震免疫吗?
No country is completely immune to earthquakes. Learn why even stable continental regions can experience unexpected seismic events.
何时撤离:地震后的海啸警报
Know when to evacuate after a coastal earthquake. Learn tsunami warning signs, evacuation routes, and how warning systems work.
日本的地震风险:最有准备的国家
Japan experiences 1,500+ earthquakes yearly. Learn how the world's most earthquake-prepared nation protects its people with technology and building codes.
印度尼西亚的环太平洋位置:地震之岛
Indonesia spans multiple subduction zones on the Ring of Fire. Learn about its earthquake and tsunami risks across 17,000 islands.
菲律宾:台风和地震
The Philippines faces compound earthquake and typhoon risks on the Ring of Fire. Learn about its subduction zones and multi-hazard challenges.
中美洲火山地震带
Central America sits above the Cocos Plate subduction zone, producing earthquakes and volcanoes from Guatemala to Panama.
加勒比海地震风险:隐藏的危险
The Caribbean faces earthquake and tsunami risk from multiple plate boundaries. Learn about the hidden seismic hazards threatening island nations.
常见问题解答
震中是地表上位于震源（地震破裂开始处）正上方的点。通常以经纬度坐标报告。最强的震动通常发生在震中附近，但当地土壤条件和断层几何形态可能使最大损害区域发生偏移。
地震仪（地震计）是检测和记录地震波引起的地面运动的仪器。现代宽频带地震仪可以检测到比原子宽度还小的运动。全球地震仪网络使科学家能够在几分钟内确定地震的位置和震级。
P波（纵波）是通过岩石传播最快的压缩波，最先到达地震台站。S波（横波）到达较晚但引起更大的地面震动。P波可以通过固体、液体和气体传播；S波只能通过固体传播。两者之间的时间差有助于确定地震的距离。
震源是地球内部地震破裂开始的点。它由经度、纬度和深度来描述。震源与其正上方地表之间的垂直距离即为地震深度，这对地表感受到的震动强度有很大影响。
地震学是研究地震和地震波在地球内部传播的科学学科。它包括地震检测、定位和特征描述、地球内部结构、地震危险性评估和地震工程。地震学家利用全球地震仪网络的数据来研究这些现象。