“紧急措施”常见的英文表达是 emergency measures 或 emergency actions。
emergency measures 侧重于指在紧急情况下为应对危机、防止事态恶化而采取的一系列办法、手段。例如：The government announced a series of emergency measures to deal with the flood.（政府宣布了一系列应对洪水的紧急措施。 ）
emergency actions 更强调在紧急时刻采取的实际行动。例如：Firefighters took immediate emergency actions to rescue the trapped people.（消防员立即采取了紧急行动来营救被困人员。 ）