ITO NA YON

Question 1

The perceptible shaking of the surface of the Earth, resulting from sudden release of energy in the Earth’s crust that creates seismic waves

Answer 1

Earthquake

Question 2

Is the outermost layer of the Earth is broken into pieces, which are in continuous motion.

Answer 2

Plates

Question 3

How do plates move?

Answer 3

plates at the Earth’s surface move because of the intense heat in the Earth’s core that causes molten rock in the mantle layer to move in a convection cell pattern. As the warm material rises, cools, and sinks down, it warms up again and rises, pushing the plates and causing them to move.

Question 4

Types of Natural Earthquakes

Answer 4

Tectonic Earthquakes
Volcanic Earthquakes

Question 5

Earthquake produced by sudden movement along faults and plate boundaries.

Answer 5

Tectonic Earthquakes

Question 6

Earthquakes produced by movement of magma beneath volcanoes.

Answer 6

Volcanic Earthquake

Question 7

WHAT IS THE DIFFERENCE BETWEEN INTENSITY AND MAGNITUDE?

Answer 7

intensity focuses on the strength or force of something at a specific point, while magnitude looks at the overall size or scale of that thing.

Question 8

it refers to the disruptive up and down and sideways motion experienced during an earthquake.

Answer 8

Ground Shaking

Question 9

HOW EARTHQUAKE VIBRATIONS GENERATED?

Answer 9

Most natural earthquakes are caused by sudden slip along fault zone.

Question 10

is a fracture on which one body of rock slides past another.

Answer 10

Fault

Question 11

TYPES OF FAULT

Answer 11

Normal Fault
Reverse Fault
Right-Lateral Strike-Slip Fault
Left-Lateral Strike-Slip Fault

Question 12

Types of Seismic Waves (Body Waves)

Answer 12

Primary waves
Secondary Waves

Question 13

Types of Seismic Waves (Surface Waves)

Answer 13

Love Waves
Rayleigh Waves

Question 14

The fastest seismic waves that can travel through solids, liquids, and gases.

Answer 14

Primary Waves

Question 15

Travel through Earth’s interior at about half the speed of primary waves, can travel through solids but not liquids of gases.

Answer 15

Secondary Waves

Question 16

seismic waves that move along Earth’s surface, cause the largest ground movements and the most damage

Answer 16

Surface Waves

Question 17

How is Ground Shaking Measured?

Answer 17

Velocity
Acceleration
Frequency
Duration (how long the shaking continues)

Question 18

The creation of new or the renewed movement of old fractures, oftentimes with two blocks on both side moving in opposite direction

Answer 18

Ground Ruptures

Question 19

Loosely packed/water-logged sediments at/or near the ground surface lose their strength in response to strong ground shaking

Answer 19

Liquefaction

Question 20

Types of Liquefaction Features

Answer 20

Flow Failure
Lateral Speed
Ground Oscillation
Loss of bearing strength

Question 21

Considered the most dangerous types of ground failure due to liquefaction

Answer 21

Flow Failure

Question 22

Blocks or broken pieces of the flat or very gentle grounds above liquefied zone move laterally.

Answer 22

Lateral Speed

Question 23

Due to the flat or nearly flat slope, the ground is unable to spreads and instead oscillates like a wave. Water and wet sand are ejected through the fissures that form conical-shape mounds of sand at the surface.

Answer 23

Ground Oscillation

Question 24

Loss of strength of sediments resulting in tilting of houses and floating of buoyant that are anchored on the liquefied structures zone.

Answer 24

Loss of bearing strength