Questions -

Question 1 - At a seismograph station, what types of seismic waves arrive and in what order?

S waves, P waves, Seismic waves

P waves, Surface waves, S waves

P waves, S waves, Surface

Surface, Tsunami, P waves, S waves

Question 2 - San Andreas is a complex network made up of one main fault and many subsidiary faults which are collectively referred to as a _________.

seismic wonderland

fault system

seizmic rupture zone

master fault

Question 3 - _______ would be considered a PRIMARY hazard that can cause damage to the surrounding environment during an earthquake.

Fires

Ground shaking

A Tsunami

A Landslide

Question 4 - Important potential secondary hazards associated with earthquakes include: Choose THREE that are correct.

tsunamis

shaking S waves

destructive P waves

liquifaction

ground shaking

landslides

Question 5 - What is usually the cause of large tsunamis?

major earthquakes on strike-slip faults near the ocean, such as the San Andreas.

motion of the sea floor during seafloor spreading at mid-ocean ridges.

earthquakes during volcanic eruptions from new intra-plate volcanoes on the sea floor.

subduction and uplifting of lithosphere during an earthquake at a convergent boundary.

Question 6 - How effective are scientists in predicting earthquakes?

Not effective in the short term, but very effective in the long term.

Not effective, either in the short or long term.

Not effective in the long term, but very effective in the short term.

Quite effective in both the short and long term.

Question 7 - Which of the following is FALSE regarding foreshocks and aftershocks?

Aftershocks can cause more damage than the major Earthquake.

Aftershocks arc usually at least one degree of magnitude smaller than the mainshock.

Foreshocks can be used to predict an imminent Earthquake.

Foreshocks can preceed a mains hock by days, weeks, even years.

Question 8 - Which of the following are correct with regard to locating the epicenter of an earthquake? Choose THREE correct answers.

Distance from the epicenter is determined using arrival times of Surface waves and S waves.

We need three different seismograms.

We need two different seismograms.

A time-travel graph is used to determine how far away the epicenter is from the seismograph station.

S waves are the first waves to appear on the seismogram.

Distance is determined based on the difference in arrival times of the first P and S waves.

Question 9 - Which THREE of the following are true regarding numbers of earthquakes annually?

There are approximately 100 earthquakes every year with a magnitude of 4.

There are approximately 1 million earthquakes every year with a magnitude of 2.

There is approximately 1 earthquake every 10 years with a magnitude of 9.

On average, there is only 1 earthquake every year with a magnitude of 8

There are approximately 10 earthquakes every year with a magnitude of 10.

There are approximately 100,000 earthquakes every year with a magnitude of 5.

Question 10 - Deep focus earthquakes usually occur _______.

only near subduction zones.

equally at all plate boundaries

mainly at transform fault boundaries.

only at divergent spreading centers.

Question 11 - What is the main reason that intraplate earthquakes occur? (such as Earthquakes near Bridgeport, Ct?)

They occur due to subducting lithospheric plates that get stuck in those regions.

They occur due to hot spots.

They occur on old faults that were once a part of ancient plate boundaries.

It is a result of global warming.

Question 12 - What does the elastic rebound theory describe?

the uplift of the crust in response to erosion.

the build-up of stress and sudden release of energy due to movement of tectonic plates.

the formation of mountain ranges by successive earthquakes.

the fluctuations in ground water prior to an earthquake.

Question 13 - Choose two of the following that correctly describe P waves.

tsunamis

slowest moving seismic wave

shear waves

compressional waves

fastest moving seismic wave

most destructive earthquake wave

surface waves

Question 14 - At a divergent boundary, what kind of faulting would you expect to find?

mega-faulting

strike slip

normal

reverse

Question 15 - This road crosses a fault line. What kind of faulting is occurring hare?

Reverse

Reverse strike slip

Normal

Right-lateral strike slip

Question 16 - Shallow earthquakes, less than 20 km deep are associated with

divergent boundaries only.

convergent boundaries only.

convergent, divergent and transform fault boundaries,

transform fault boundaries only.

Question 17 - Which of the following statements about tsunamis is true? (Choose TWO that are true)

An early warning system for tsunamis has been developed for the Pacific region.

Tsunamis can reach heights in excess of 40 meters when they reach the shore.

Tsunamis are generated by tidal forces which is why they are also called tidal waves,

Tsunamis travel faster than both p and s waves.

Question 18 - Which type of seismic waves cause the most destruction?

S waves.

Surface waves.

P waves.

All seismic waves cause the same amount of destruction.

Question 19 - Which two of the are often involved with fault mechanisms at subduction zones?

reverse faulting

megathrust events

strike-slip faults.

normal faulting

Question 20 - The 2011 Tohuku, Japan event revealed a NEW threat associated with large earthquakes. What was it?

the threat of fires created by the rupture of gas mains

the vulnerability of nuclear facilities.

the generation of a large tsunami

the weakness of building structures

Question 21 - Which TWO of the following correctly describe the global forces involved in the formations of earthquakes?

When the strain of the rocks is overcome by their strength, a stress will occur.

Stress due to tectonic forces causes rocks to deform and become strained.

When the rock's strength is overcome by the stress, an earthquake will occur.

Stress, strain and strength all refer to the same tectonic forces acting at plate boundaries.

Question 22 - Three of the largest 20 earthquakes in the past century occurred in the United States, all in the same state. Which state is this?

Alaska

Connecticut

Washington

California

Question 23 - Which of the following events released the most energy?

the explosion of the Hiroshima atomic bomb

All of these released the same amount of energy.

the eruption of Mount St. Helens

the 1964 Alaska earthquake

Question 24 - Which of the following earthquakes was the largest?

1923 Tokyo, Japan

1976 Tangshan China

1960 Chile

1906 San Francisco, Ca