Exam 4

based on data for the period from 1970 to 2013, ____ experienced the greatest loss of life from natural disasters.

Asia

Moving progressively away from the ridge, the ocean water depths increase systematically with seafloor age due to all but which of the following?

Erosion of the older ocean floor by deep ocean currents.

In igneous rocks such as granites, S waves travel about 1.7 times faster than P waves.

False

The annual likelihood of a tornado that kills 10 people is less than that of an earthquake killing the same number of people.

False

The biggest disasters occur when great earthquakes occur at great depths.

False

____ waves are transverse waves that propagate by shearing or shaking particles in their path at right angle to the direction of advance.

Love and S

____ faults are commonly found at areas of plate convergence where subduction or continental collision occurs.

Reverse

Which of the following wave types travels slowest through rock?

Surface waves

The Lisbon earthquakes of 1755 are historically significant because

They changed the prevailing philosophies of the era, producing a more pessimistic view of the world.

At depths below 100 km, subduction zone earthquakes occur almost exclusively in the interior of the colder oceanic lithosphere, the heart of the subduction slab.

True

In 1620, Francis Bacon of England noted the parallelism of the Atlantic coastlines of South America and Africa and suggested that these continents had once need joined.

True

The Dead Sea fault zone is an Eastern Hemisphere analogue of the San Andreas Fault in California

True

The compressional movements at subduction zones and continent-continent collisions generates the largest tectonic earthquakes and they affect the widest areas.

True

The velocity of an S wave depends on the density and resistance to shearing of materials.

True

Transform faults usually link spreading centers or connect spreading centers with subduction zones.

True

The slide-past motions of long transform faults occur in all but which of the following?

Where the Indian subcontinent touches Asia.

The Dead Sea and the Sea of Galilee

are pull-apart basins and the result of strike-slip motion.

In the last two or three centuries birthrates

have changed little, while death rate have plunged.

The Pacific Plate subducts along ____ edges and creates enormous earthquakes, such as the 1923 Tokyo seism.

its northern and western

The hot-spot-melting-through-lithosphere process forms lines of extinct volcanoes on the ocean floor, from youngest to oldest, ____.

pointing in the direction of plate movement

he early differentiation of Earth into a mantle and a core was created by

the buildup of heat and the melting of iron, which was pulled by gravity to the center of Earth

First-order analysis of a seismogram record allows seismologists to do all but which of the following?

to develop a Modified Mercalli Intensity map