Lesson 7.1: Mass Movement Flashcards
the downward movement of surface materials caused by gravity.
Mass movement
Mass movement could be classified as ________________________________
downslope movement or vertical movement
A ____________ is an example of a downslope movement.
landslide
The USGS defines _________ as a wide variety of processes that result in the downward and outward movement of slope-forming materials such as rock, soil, artificial fill, or a combination of these
landslide
____________________ is an example of a vertical movement.
Ground subsidence
______________________ could lead to a very slow to rapid sinking of the land surface, usually forming a ___________________
- Ground subsidence and collapse
- depression
It is more commonly referred to as a sinkhole
depression
Geological hazards can also be grouped into _______________ based on their onset.
sudden and slow phenomena
_________ phenomena include earthquakes, landslides, mud flows, pyroclastic flows, tsunamis, flash floods, volcanic eruptions, tephra, and lahar.
Sudden
____ phenomena, on the other hand, include the formation of volcanoes, sinkholes, liquefaction, sand dunes, and shoreline and stream erosions.
Slow
___________ is prone to geographical hazards due to its location in the tropics and the presence at the bases of mountains and hills.
Philippines
The Philippines, being an ______________, also experiences the effects of global warming firsthand.
archipelago
In recent years, the country has experienced another humanmade disaster which came to be known as the _______________.
Payatas Trash Slide
Tons of trash as high as ________came sliding down after several days of heavy rain, burying shanties that lay on its side and killing approximately ______________.
- 50 feet
- 500 persons
