Hazards - Earthquakes Flashcards
Features of earthquakes - focus
the point in the earths crust where the earthquake originates
Features of earthquakes - epicentre
the point above the earths surface directly above the focus of the earthquake
Features of earthquakes - shock waves
small earth tremors that follow an earthquake
Location of earthquakes
along fault lines or plateboundaries
Earths structure/layers - core
made of nickel and iron, temperatures between 4000 and 6000 degress celsius
Earths structure/layers - mantle
thickest layer made of magma, hot but not as hot as the core
Earths structure/layers - crust
hard thin outside layer of the earth
Earth quake case study - Name and when it happened
Haiti earthquake 2010
Causes of the earthquake
Tectonic plates moving
Effects on the people and the landscape
- 230000 people died
- famillies seperated from loved ones
- water contaminated with sewage
- broken and damaged cities
roads destroyed - cholera was a major disease that spread through the homeless.
Methods of predicting earthquakes
- seismographs
- tiltmeters
- lasers to measure distance
Methods of planning for earthquakes
- earthquake proof buildings
- educate poeple about the dangers of earthquakes
- evacuation plans/shelters
- survival kits
- earthquake drills
- steel buildings to withstand the shock waves
Strategies used to manage impact of earthquake
- shelter food and water
- text message warnings sent to iphones
- tsunami warnings and alerts
- exclusion zones (places not allowed to go
- military put on standby
- charities help after eathquakes
- updates given on TV
