Science (pinagpuyatan ni Budz)

It is a place deep within the earth and along the fault where rupture occurs.

• A. plate boundary

• B. focus

• C. P waves

• D. epicenter

The geographic point on surface directly above the focus is called

• A. fault line

• B. buffer zone

• C. epicenter

• D. focus

What are the two types of crust?

• A. thick and thin

• B. ocean and basin

• C. lower and upper

• D. continental and oceanic

It is a kind of rock that is common in continental crusts.

• A. pumice

• B. obsidian

• C. granite

• D. basalt

The following are considered major

plates, EXCEPT:

• A. Juan de Fuca plate

• B. Antarctic Plate

• C. Eurasian plate

• D. Pacific Plate

Which of the following DOES NOT belong to the group?

• A. South American Plate

• C. Philippine Plate

• C. Eurasian plate

• D. Scotian Plate

80% of all the earthquakes occur in the

• A. Atlantic Belt.

• B. Pacific Belt.

• C. Caribbean Belt.

• D. Mediterranean-Asiatic Belt.

Earthquake epicentres are identified through_____

• C. Triangulation Method

• B. Scaling Method

• C. Seismographic Method

• D. Richter scaling

At least how many seismic stations are needed to find an earthquake's epicenter using triangulation method?

• A. 4

• B. 3

• C. 2

• D. 1

From the seismogram, the distance to the epicenter can be determined by measuring

• A. the arrival time of surface wave

• B. the difference in the arrival times of the P and S-waves

• C. the ratio of the amplitude of the largest P and S-waves

• D. the speed of the surface wave