Prelims Terms Flashcards
Which of the following is the most common seismic hazard?
- Ground Shaking
- Landslide
- Tsunami
- Fire
Ground shaking
What does the application of mitigation measures aim to do?
Minimize the effect of earthquakes
The following are measured to mitigate risks caused by landslides except for:
- gabion walls
- sea walls
- retaining walls
- drainage
Sea walls
How is risk calculated?
Function of hazard and vulnerability
It exists when an element at risk is in the path or area of hazard
Community vulnerability
What does the term “hazard” refer to in the context of earthquakes?
Any phenomenon with an earthquake that may produce adverse effects on human activities
A method of mitigation that addresses the preparedness and resilience of people and society
Operational mitigation
The following are examples of operational mitigation except for:
- Survival kits
- Earthquake alerts
- Earthquake drills
- More tax for structures near fault lines
More tax for structures near fault lines
The following may be reasons to retrofit a structure except:
- change in loading
- old and deteriorating structures
- sufficient in construction methods
- change in occupancy type
sufficient in construction methods
It is the likelihood of the structure to be damaged or disrupted by a hazard
Structural vulnerability
PHIVOLCS
Philippine Institute of Volcanology and Seismology
It is the qualitative measure of earthquake strength
Intensity
Group of scientists who study earthquakes
Seismologists
The intensity scale used by USGS
Modified Mercalli Scale
Process of locating the epicenter of an earthquake
Triangulation
This is the state when a magnitude scale cannot accurately measure the size of the earthquake.
Magnitude saturation
Quantitative measure of earthquake strength
Magnitude
This province experiences little to no seismic activity
Palawan
This is the shaking or trembling of the ground caused by a sudden release of energy stored in the rocks beneath the Earth’s surface
Earthquakes
Which fault system is expected to inflict a Magnitude 7.2 earthquake in manila and surrounding provinces
West Valley Fault / Marikina Valley Fault
