ANATOMY OF EARTHQUAKE(SHY)

Direction: Read and understand each question.

Choose the best answer.

1. What is the primary cause of earthquakes?

• a) Movement of tectonic plates

• b) Volcanic eruptions

• c) Changes in atmospheric pressure

• d) Gravitational pull from the moon

Some earthquakes occur near

volcanoes due to magma

movement before an eruption.

• CONVERGENT BOUNDARY (PLATES

  COLLIDE) → STRONG EARTHQUAKES

• DIVERGENT BOUNDARY

  (PLATES MOVE APART) → MILD EARTHQUAKES

• TRANSFORM BOUNDARY (PLATES SLIDE PAST

  EACH OTHER) → FREQUENT EARTHQUAKES

• VOLCANIC ACTIVITY

Plates slide past each other horizontally. This

type of boundary is responsible for many

earthquakes, such as those along the San

Andreas Fault in California.

• CONVERGENT BOUNDARY (PLATES

  COLLIDE) → STRONG EARTHQUAKES

• DIVERGENT BOUNDARY

  (PLATES MOVE APART) → MILD EARTHQUAKES

• TRANSFORM BOUNDARY (PLATES SLIDE PAST

  EACH OTHER) → FREQUENT EARTHQUAKES

• VOLCANIC ACTIVITY

Plates move apart from each other. This

often occurs at mid-ocean ridges where new

crust is created (e.g., the Mid-Atlantic

Ridge).

• CONVERGENT BOUNDARY (PLATES

  COLLIDE) → STRONG EARTHQUAKES

• DIVERGENT BOUNDARY

  (PLATES MOVE APART) → MILD EARTHQUAKES

• TRANSFORM BOUNDARY (PLATES SLIDE PAST

  EACH OTHER) → FREQUENT EARTHQUAKES

• VOLCANIC ACTIVITY

Plates move toward each other. This can result in one

plate being forced beneath another in a process

called subduction (e.g., the collision between the

Indian Plate and the Eurasian Plate formed the

Himalayan Mountains).

• CONVERGENT BOUNDARY (PLATES

  COLLIDE) → STRONG EARTHQUAKES

• DIVERGENT BOUNDARY

  (PLATES MOVE APART) → MILD EARTHQUAKES

• TRANSFORM BOUNDARY (PLATES SLIDE PAST

  EACH OTHER) → FREQUENT EARTHQUAKES

• VOLCANIC ACTIVITY

Activities like mining, drilling,

and building large dams can

trigger earthquakes, known as

induced earthquakes.

• CONVERGENT BOUNDARY (PLATES

  COLLIDE) → STRONG EARTHQUAKES

• DIVERGENT BOUNDARY

  (PLATES MOVE APART) → MILD EARTHQUAKES

• HUMAN ACTIVITIES

• VOLCANIC ACTIVITY

EFFECTS OF earthquake?

Earthquakes can loosen

soil

• GROUND

  SHAKING

• SURFACE

  RUPTURE

• TSUNAMI

• LANDSLIDES

EFFECTS OF earthquake?

Large ocean waves

caused by underwater

earthquakes.

• GROUND

  SHAKING

• SURFACE

  RUPTURE

• TSUNAMI

• LANDSLIDES

EFFECTS OF earthquake?

Cracks or displacement of

the ground along a fault

line.

• GROUND

  SHAKING

• SURFACE

  RUPTURE

• TSUNAMI

• LANDSLIDES

EFFECTS OF earthquake?

This can cause buildings,

bridges, and roads to

collapse.

• GROUND

  SHAKING

• SURFACE

  RUPTURE

• TSUNAMI

• LANDSLIDES