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10 cards from this deck
Instrument to measure earthquake intensity & locate epicentre
Inertia - heavy weight stays still while ground/surface moves
Fastest waves, arrive first, cause little damage
Arrive second, slower than P waves, little damage
Most destructive, arrive last, travel along Earth's surface
Standard system to measure earthquake intensity/magnitude
Logarithmic - each number = 10x more energy than previous
No, but early warning systems can provide minutes of notice
Rocks emit varying magnetic frequencies when under stress
P & S wave detection gives minutes warning before L waves hit
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