Managing Tectonic Hazards Flashcards
How do you predict volcanic eruptions?
Earthquakes and land deformation, gases
How do you predict earthquakes?
Very hard to predict, foreshocks may occur
How do you protect against volcanic eruptions?
Evacuations - cannot build houses to protect
How do you protect against earthquakes?
Building and infrastructure (shock absorbers)
Sea walls against tsunamis
How do you plan for volcanoes
Exclusion zones, evacuation, education on response
How do you plan for earthquakes?
Practice drills, emergency supplies, evacuation plans, securing loose objects and furniture
How are earthquakes monitored?
Foreshocks using seismometers
Radon detection devices used to monitor the release of radon prior to earthquakes
How do you monitor volcanoes
Gps- changes in land shape
Seismometers, magma moving
Why live near hazards (economic)
Geothermal energy opportunities, nutrient rich soils, resources and income from mining and minerals, tourism, may be cheaper to stay in a tectonically active area
Why live near hazards (social)
Stay close to family and friends, more people may not understand the risks confidence in the measures taken
Ways to protect against earthquakes?
Seismic isolators, cross bracing, counterweights, base isolators, shock absorbers
When is the annual earthquake drill in Japan
1st september
