Geologic Hazards Flashcards
(8 cards)
takes place when loosely-packed, water-logged sediments at or near the ground surface lose their strength in response to strong ground shaking
Liquefaction
something that has potential to harm you
hazard
the likelihood of a hazard causing harm
risk
four geologic hazards
fault-related/seismic, mass movement, volcanic hazards
what are the processes of fault-related/seismic hazards?
ground acceleration (earthquake), ground rupture, liquefaction, differential settlement (unstable ground is tilted), landslides, fault creep, lateral spread, tsunami, seiches
what are the processes of mass movement?
landslides, creep, subsidence, settlement
what are the processes of volcanic hazards?
lava flow, debris flow and avalanche, pyroclastic flow, lahar, lateral blast, bombs and ballistic projectiles, ash fall, tsunami, flooding, volcanic gases, volcanic earthquakes
most destructive volcano eruption in the philippines
mayon volcano (1814)