地震风险评估
定义
评估特定地区或结构的地震灾害、建筑脆弱性和潜在损失的过程。结合灾害图、建筑清单和破坏模型。
示例
FEMA的HAZUS软件为全美社区执行地震风险评估。
相关术语
相关指南
1995年神户地震:唤醒日本的事件
The 1995 M6.9 Kobe earthquake exposed critical flaws in Japan's earthquake preparedness, killing 6,400 and transforming building codes.
你需要地震保险吗?完整指南
Homeowners insurance doesn't cover earthquakes. Learn who needs earthquake insurance, what it costs, and how to decide if it's worth the premium.
按州分类的地震保险:美国比较
Earthquake insurance availability and cost varies dramatically by US state. Compare rates and coverage options across high-risk and low-risk areas.
加州地震局(CEA)解释
The CEA is the largest residential earthquake insurance provider in the US. Learn about its policies, deductible options, and retrofit discounts.
洪水保险vs地震保险:了解区别
Flood and earthquake insurance are separate policies with different rules. Understand which natural disasters are covered and where gaps exist.
商业主的商业地震保险
Business earthquake insurance covers property damage, business interruption, and liability. Learn what commercial policies include and cost.
地震保险成本:影响保费的因素
Earthquake insurance premiums range from $100 to $5,000+ annually. Learn what factors determine your cost and how to lower your premium.
房屋所有者保险是否涵盖地震?
Standard homeowners insurance excludes earthquake damage. Learn what's covered, what's not, and why you need a separate earthquake policy.
巨灾债券:华尔街如何处理地震风险
Catastrophe bonds transfer earthquake risk to capital markets. Learn how cat bonds work and their role in funding disaster recovery.
没有地震保险的真实成本
Without earthquake insurance, homeowners face financial ruin. Calculate the real cost of going uninsured in a seismically active area.
相关案例研究
1970年安卡什地震:南美历史上最严重的地震
The deadliest earthquake in South American history, where a 50-million-cubic-meter avalanche from Mount Huascaran traveled at 300 km/h to bury the town of Yungay, killing 92% of its population.
1948年阿什哈巴特地震:数十年被隐瞒的苏联灾难
The most concealed earthquake disaster in history, where the Soviet government classified the true death toll of 110,000 as a state secret for 40 years.
1755年里斯本地震:撼动启蒙运动的灾难
The earthquake that launched both seismology as a science and modern emergency management, while simultaneously triggering a philosophical revolution.
1556年陕西地震:人类历史上最严重的地震(830,000人死亡)
The deadliest earthquake in human history, killing 830,000 people -- primarily because the population lived in cave dwellings carved into loess cliffs that collapsed en masse during the shaking.
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。