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- 1. Multiple Choice
What do you call the point where movement occurred which triggered the earthquake?
Focus
Fault
Epicenter
Strike
- 2. Multiple Choice
Which of the following sequences correctly lists the different arrivals from first to last?
P waves-Surface waves-S waves
S waves-P waves-Surface waves
Surface waves-P waves-S waves
P waves-S waves-Surface waves
- 3. Multiple Choice
How many seismograph stations are needed to locate the epicenter of an earthquake?
1
2
3
4
- 4. Multiple Choice
What percentage of earthquakes occur at plate boundaries? (Approximation only)
45%
60%
75%
90%
- 5. Multiple Choice
Which of the following is the most destructive earthquake waves?
P waves
S waves
Surface waves
All of the above
- 6. Multiple Choice
Which of the following measures an earthquake's intensity based on the observed effects on people and structures?
Richter scale
Mercalli scale
Centigrade scale
moment magnitude scale
- 7. Multiple Choice
Which of the following can be triggered by an earthquake?
tsunami
landslide
intense ground shaking
all of above
- 8. Multiple Choice
Which of the following statements best describes the state of earthquake prediction?
scientists can accurately predict when and where an earthquake will occur
scientists can accurately predict the time and location of all earthquakes
scientists can accurately predict the time and location of about 90% of all earthquakes
scientists can characterize the seismic risk of an area, but can not yet accurately predict most earthquakes
- 9. Multiple Choice
Which of the following fault in the Philippines will possibly move any moment in time?
Marikina Valley Fault
Central Philippine Fault
Western Philippine Fault
Southern of Mindanao Fault
- 10. Multiple Choice
What is the probability of an earthquake which occurs every 400 years if this year marks its 300th year of not occurring?
25%
50%
75%
100%
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