Topic
Emergency management
2 questions tagged Emergency management — spanning every one of the seven Ws.
how
How do emergency agencies decide when to evacuate people before a volcanic eruption?
They use a mix of seismic activity, ground swelling, gas changes, past behavior, and hazard maps. Evacuations are ordered when the risk of eruption or related hazards becomes unacceptable.
VolcanoesEmergency management
what
What is a tsunami siren?
A tsunami siren is an outdoor alarm used to warn people in coastal areas of an incoming tsunami. It is usually part of a broader emergency alert system that includes broadcasts, texts, and evacuation routes.
Natural DisastersEmergency Management