Geologic Hazards

Which of the following causes of landslide does weak or sensitive materials belong?

• morphological causes

• geological causes

• human causes

• technology causes

Tags

NGSS.MS-ESS2-2

Which of the following causes of landslides does deforestation belong?

• morphological causes

• geological causes

• human causes

• technology causes

Tags

NGSS.MS-ESS3-4

Which of the following causes does fluvial, wave, or glacial erosion of slope toe or lateral margins belong?

• morphological causes

• geological causes

• human causes

• technology causes

Tags

NGSS.MS-ESS2-2

Which of the following is not considered a human cause of landslides?

• loading of slope or its crest

• thawing

• artificial vibration

• irrigation

Which of the followingis NOT a sign of an impending landslide according to USGS?

• weathered materials

• tilting or cracking of concrete floors and foundations

• sunken or down-dropped road beds

• soil moving away from foundations

Water (rain), seismic, and volcanic activity are three main categories of what type of landslide?

• human causes

• natural causes

• geological causes

• technological causes

Tags

NGSS.MS-ESS3-2

Which agency outlined five (5) major types of movement or landslides in their The Landslide Handbook?

• Department of Science and Technology or DOST

• Philippine Atmospheric Geophysical and Astronomical Services Administration or PAGASA

• Japan International Cooperation Agency or JICA

• United States Geological Survey or USGS

What happens when a movement like fall occurs?

• Driven by gravity exerted by the weight of material upslope from the displaced mass.

• Movement does not initially occur simultaneously over the whole of what eventually becomes the surface of rupture.

• Detachment of soil or rock, or both, from a steep slope along a surface on which little or no shear displacement has occurred.

• The slide movement is more or less rotational about an axis that is parallel to the contour of the slope

Tags

NGSS.MS-ESS3-2

NGSS.MS-PS2-5

What type of movement do lahar, debris avalanches, and earthflows belong?

• flows

• spread

• slide

• topple

Tags

NGSS.MS-ESS2-2

When spread movement can happen?

• It can result from liquefaction or flow (and extrusion) of the softer underlying material.

• Downslope movement of a soil or rock mass occurring on surfaces of rupture or on relatively thin zones of intense shear strain.

Tags

NGSS.MS-ESS2-2