Geotectonics

Place directly above focus on Earth’s surface is known as ?

The point within the Earth where earthquakes originate is:

Magnitude of energy released by an earthquake is calculated using ?

Instrument used to measure earthquake is known as ?

• seismograph
• quake meter
• barometer
• none of the above

How many seismograph stations are needed to locate the epicenter of an earthquake ?

Amount of energy released by an earthquake is also known as ?

Earthquakes occur most frequently at ?

• plate boundaries
• plate surface
• ocean beds
• all of the above

P Waves can pass through ____ ?

• crust and core only
• liquids and gases only
• solids, gases, and liquids
• none of the above

P Waves are also said to be ____ waves.

• push-pull
• side-side
• up-down
• none of the above

The Q/P/S/L Waves are the slowest.

The amount of ground displacement in an earthquake is called the focus/slip/dip/newton?

Vibrations radiate from focus in all direction as –

• Seismic waves
• Transverse waves
• Longitudinal waves
• None of the above

The S/P/L/Q Waves are said to the most damaging to humans.

S Waves can pass through ____.

• solids only
• gases only
• liquids only
• all of the above

Earthquakes usually occur at boundary of –

• coral plate
• crustal plates
• volcanic beds
• all of the above

P waves are:

• tensional surface waves.
• transverse surface waves.
• compressional body waves.
• none of the above

Body waves consist of the:

• S waves only
• P waves only
• Surface waves
• Both the S waves and P waves

Earthquakes occur when there is a sudden release of stored up energy in Earth’s –

• outer core
• inner core
• upper mantle
• none of the above

The P/L/S/Q Waves are the fastest?

Shield volcanoes are Small/Medium/Huge in size?