Part 1: Plate Tectonics

It is a series or chain of mountains that are close together

• Active volcanoes

• Mountain ranges

• Epicenters of earthquakes

• hills

It is a volcano that has had at least one eruption during the past 10,000 year

• Active volcanoes

• Mountain ranges

• Epicenters of earthquakes

• hills

It is a point on the earth's surface vertically above the focus of an earthquake

• Focus

• Fault line

• Epicenter

• Earthquake

It is the starting point of an earthquake

• Focus

• Fault line

• Epicenter

• Earthquake

What is the method used by the seismologists in locating the epicenter of an earthquake?

• triangle method

• square method

• triad method

• triangulation method

Which best describe the prediction of plate tectonic theory about the distribution of active volcanoes and earthquakes?

• They should occur in deep ocean basins.

• They should occur primarily on continents.

• They should occur primarily along plate boundaries.

• They should be evenly distributed throughout the earth.

If you were given data indicating the arrival time of P-waves and S- waves recorded from three seismic stations, which of these can you possibly determine?

• damage at the hypocenter

• damage at the epicenter

• epicenter of an earthquake

• intensity of an earthquake

You are a seismologist trying to find out the exact location of a recent destructive earthquake. Which of the following sequence you must applied?

i. Obtain data from three seismic stations.

ii. Solve for epicentral distance from the stations.

iii. Use triangulation method to locate earthquake’s epicenter.

iv. Determine the time interval between the arrival of the P and S waves.

• i, ii, iii, iv

• i, iv, iii, ii

• i, iv, ii, iii

• ii, iii, iv, i

Which among these geological activities is NOT included as bases of the scientist in dividing the Earth’s lithosphere into several plates?

• mountain formation

• tsunamis

• seismicity

• volcanisms

How will you relate the distribution of mountain ranges with the distribution of earthquake epicenters and volcanoes?

• They are all located in different places

• They are randomly distributed all over the world

• They all lie on the same location

• All of the above