tectonics L8 multiple hazard zones & hazard profiles

Question 1

what is a Multiple Hazard Zone?

Answer 1

locations where many hazards combine

if the zone has a high vulnerability or frequency it can become a disaster hotspot

Question 2

the Philippines as a MHZ

Answer 2

• destructive boundary — volcanic activity, shallow and deep focus earthquakes

vulnerability:
- mostly mountainous land with coastal lowlands
- lies in typhoon belt — 15 typhoons a year — $19 mil in economic damage over 55 years
- tropical climate
- 22 active volcanoes
- poorly constructed infrastructure

• Typhoon Haiyan, 2013 — 9500 deaths

Question 3

Tectonic Hazard Profiles

Answer 3

• compares physical characteristics that hazards share
• help decision makers when deciding where to allocate the most human & financial resources
• Frequency, Areal Extent, Magnitude, Duration, Speed of onset, Spatial predictability.
• doesn’t cover human elements

Question 4

what is a HILP?

Answer 4

High impact, low probability events