DRRRM (Version B)

After a strong earthquake, PHIVOLCS personnel climb to upland areas mainly to inspect which feature related to potential landslides?

• Hot springs that may appear

• Dense vegetation on slopes

• Watershed boundaries

• Ground ruptures along slopes

Which home site is MOST prone to landslides?

• The plains

• A very steep slope

• A moderate slope

• A low or gentle slope

Which action BEST reduces landslide risk on a hillside community?

• Allow controlled quarrying

• Restore and maintain vegetation on slopes

• Remove natural watershed areas

• Dump excavated soil along the slope

During the Southwest Monsoon (Habagat), which factors heighten the likelihood of a landslide?

• Heavy rainfall and saturated soil

• Low humidity and dry soil

• Strong winds without rain

• Cold temperatures and clear skies

Which terrain commonly develops sinkholes due to dissolution of soluble rocks by groundwater?

• Karst terrain

• Plain terrain

• Swamp terrain

• Deltaic terrain

What is the term for a ground depression produced by the dissolution of underlying soluble rocks?

• Impact crater

• Landslide scarp

• Sinkhole

• Syncline

Which type of sinkhole forms primarily through gradual dissolution of carbonate rocks at the surface?

• Solution sinkhole

• Cover subsidence sinkhole

• Cover collapse sinkhole

• Thermokarst sinkhole

If a strong, long-lasting earthquake is felt along a coast, what should residents do immediately?

• Move to higher ground away from the shore

• Go down to the beach to observe the water

• Stay indoors and wait for announcements

• Return to buildings to check for damage 

Which preparedness action is recommended BEFORE an earthquake?

• Identify safe spots indoors and outdoors

• Run outside as soon as shaking begins

• Stand in doorways of any building

• Wait for instructions before planning

Which actions are recommended AFTER an earthquake?

I – Proceed to an open area; II – Be alert for possible tsunamis; III – Stay away from damaged zones; IV – If driving, stop when it is safe 

• I only

• III and IV only

• I, II and III only

• II only