Exam 12: Tectonics, Earthquakes, and Volcanism

What is the expected number of M 5-5.9 earthquakes per year?

Describe the typical formation and characteristics of a continental shield.

When rock strata are strained beyond their ability to remain an intact unit,displacement occurs in a process known as

An active volcano is defined as one that

Which of the following is correct regarding the moment magnitude scale-a scale which quantifies the amount of energy released by an earthquake?

Explosive eruptions tend to build up

An earthquake is best described as

An area of uplifted rock strata resembling an anticline that have been heavily eroded overtime is known as a

Which of the following most accurately describes the current status of volcano forecasting?

Define and distinguish between the following: epicenter,focus,foreshock,aftershock.

Most cratons date to the

The subsurface area where the motion of seismic waves is initiated along the fault plane is called the

The San Andreas system in California is an example of

The area at the surface directly above the subsurface location where seismic waves are initiated is termed the

Pulverized rock and clastic materials ejected violently during an eruption are called

An effusive eruption ____,whereas an explosive eruption _____.

At this convergent boundary,volcanic island arcs form where on plate is subducted under another.

A craton is best described as

The _____scale would use Roman numerals to qualitatively describe an earthquake based actual effects experienced at the exact time and location of the quake.

The "Ring of Fire" is a volcanic island arc extending from the southwestern Pacific through Indonesia.The island arc formed as a result of ____collision.