Tectonic hazards 🌋 Flashcards
Conservative plate margin
Tectonic plate margin where two tectonic plates slide past each other
constructive plate margin
tectonic plate margin where rising magma adds new material to plates that are diverging or moving apart
destructive plate margin
tectonic plate margin where two plates re converging or coming together and oceanic plate is subducted. it can be associated with violent earthquakes and explosive volcanos.
Earthquake
a sudden or violent movement within the earths crust followed by a series of shocks.
immediate responses
the reaction of people as the disaster happens and in the immediate aftermath
long term responses
later reactions that occur in the weeks, months and years after the event
monitoring
recording physical changes, such as earthquake tremors around a volcano, to help forecast when and where a natural hazard could strike
plate margin
the margin or boundary between two tectonic plates
planning
actions taken to enable communities to respond to, and recover from, natural disasters, through measures such as emergency evacuation plans, info management, communications and warning systems
prediction
attempts to forecast when and where a natural hazard will strike, based on current knowledges thus can be done to some extent for volcanic eruptions and tropical storms, less reliable for earthquakes
primary effects
the initial impact of a natural event on people and property, caused directly by it, for instance the ground buildings collapsing following an earthquake
protection
action taken before a hazard strikes to reduce its impact, like education people or improving building design
secondary effects
the after effects that occur as indirect impacts of a natural event, sometimes in a longer timescale, for instance fires due to ruptured gas mains resulting from the ground shaking.
tectonic hazard
a natural hazard caused by movement of tectonic plates including volcanoes and earthquakes
Hazard risk
the probability or chance that a natural hazard may take place
