Developed in 1902 by Giuseppe Mercalli
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Developed in 1902 by Giuseppe Mercalli
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Mercalli Intensity Scale
General Knowledge
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Measure earthquakes quantitatively, independent of location and assigns a magnitude value based on energy released
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Measure earthquakes quantitatively, independent of location and assigns a magnitude value based on energy released
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Magnitude Scale -
Involves the movement of a slab of rock, debris, or cohesive mud as a single unit
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Involves the movement of a slab of rock, debris, or cohesive mud as a single unit
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Slide -
The time between seismic waves
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The time between seismic waves
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Period -
Extremely rapid downslope movement of large volumes of rock and debris
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Extremely rapid downslope movement of large volumes of rock and debris
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Sturzstrom -
Secondary/Shear waves that shake back and forth perpendicular to the direction of wave travel, cannot travel through a liquid (4.5km/s upper mantle, 3.5km/s crust)
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Secondary/Shear waves that shake back and forth perpendicular to the direction of wave travel, cannot travel through a liquid (4.5km/s upper mantle, 3.5km/s crust)
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S Wave -
Used to measure earthquakes
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Used to measure earthquakes
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Seismograph -
The potential degree to which an individual or community could be affected by a natural hazard
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The potential degree to which an individual or community could be affected by a natural hazard
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Sensitivity -
Rapid discharge of water from an ice-dammed lake, typically resulting from a volcanic eruption
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Rapid discharge of water from an ice-dammed lake, typically resulting from a volcanic eruption
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Jokulhlaup -
Records distant earthquakes
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Records distant earthquakes
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Long-period Seismograph