第 1 單元，第 1 課

Earthquake Risks地震風險

背單字

stress應力
Stress builds up along the fault for years.
epicenter震央
The town near the epicenter had the most damage.
magnitude規模
The earthquake had a magnitude of 6.9.
seismograph地震儀
The seismograph recorded tall waves.
Richter magnitude scale芮氏規模
Each step on the Richter magnitude scale is 10 times more shaking.
moment magnitude scale地震矩規模
Large earthquakes are reported with the moment magnitude scale.
intensity震度
The intensity was higher near the coast.
Modified Mercalli Intensity scale修訂麥加利震度表
The Modified Mercalli Intensity scale rated the quake VII in town.
resonance共振
Resonance made the tall building sway.
liquefaction土壤液化
Liquefaction made houses sink.

這課的重點字