Earthquakes Flashcards
whats a convection current?
warm rising currents that lands in the upper mantle
whats the lithosphere?
the rigid outer part of the earth, consisting of the crust and upper mantle.
where do earthquakes happen?
constructive boundary, destructive boundary, transform boundary
which earthquakes can also occur within plates?
intraplate earthquakes and faultlines
what is seismic activity?
a release of energy due to plate movement
are earthquakes hard to predict?
yes
what does the Mercalli scale measure?
the physical damage that the earthquake causes
what does the Richter scale measure?
it measures the magnitude
what does a seismograph measure?
it measures the P waves and triggers the warning systems
why is social media important in preparing for an earthquake?
it can send out the Mercalli prediction, warns people, an easy way to get lots of people information at the same time
what does GIS stand for?
geographical information systems
what would be the emergency response after a hazardous event?
search and rescue
medical teams
fire engine/ambulance/police
emergency shelter
transportation services - medicine
food and water supplies/toilets - hygiene
name a factor that affect a nations response to a hazardous event of an earthquake
- economic status (search and rescue teams may not be trained correctly or might not have the right resources)
- location of the earthquake (the epicentre could be near the populated areas leading to more damage
