It is the vibration of the earth produced by the sudden, rapid release of energy.

The study of how seismic waves behave within Earth.

The exact location within earth where seismic waves are generated by sudden release of stored elastic energy.

It is the geographical point on the ground surface where an earthquake is estimated to be centered.

Together with the epicenter, it gives the location where the rock ruptures at a fault that generates the main earthquake

The plane along which the rock ruptures and slips

An angle with respect to the ground surface

the angle the fault plane makes with respect to the north direction along the surface

the relative displacement between the two sides of the fault plane

The radiating seismic waves are recorded using a seismometer at an observation station located at a distance

Most natural earthquakes are caused by a?

what theory suggests that if movement along a fault gets stuck, elastic strain energy builds up deforming rocks on either side of the fault.

When elastic strain is released the rocks on both sides of the fault will?

The earth is made up of what main layers?

The earth's core makes up about how many percent of earth's volume?

The continental crust has a thickness of?

The oceanic crust has a thickness of?

which is older? Oceanic crust or Continental Crust?

Which is more dense? Oceanic crust or Continental Crust?

Refers to the deformation of the crust as a consequencr of plate interaction.

Plates are made of rigid what?

The lithosphere is made up of both what?

The mantle occupies how many percent of the earth's volume?

Below the lithosphere is what?

It is a break in Earth's crust where slabs of crust slip past each other.

Usually occur along plate boundaries

What are the three types of faults?

The plane along which the rock or crustal material has fractured

The rock material which lies above the fault plane

The rock material which lies below the fault plane

What fault is defined when the hanging wall slips downward on the fault plane?

What fault is defined with divergent plate boundaries?

what fault is defined with convergent plate boundaries?

what fault is defined when the hanging wall is displaced upward from the fault plane?

What fault is defined when there is a shearing along transform boundaries?

What is also known as Circum Pasific Belt?

what are hot mantle plumes breaching the surface in the middle of a tectonic plate

What does continent-continent collision make?

What does Continent-Oceanic crust collision make?

When oceanic plate collide and one sinks, it forms a?

The very deep depression in the ocean floor madr by subducting plates are called?

The mariana trench is how deep?

CENTRAL PHILIPPINE FAULT

Marikina Valley Fault

Western philippine fault

Eastern Philippine Fault

Southern of Mindanao Fault

what does PhIVolcS stand for?

The most geologically active fault line in the philippines

What is Marikina fault line now known as?

location of WEST VALLEY FAULT

If the west valley fault line moved what would happen?

Transition zone with slow slip and creep activity

What does the PHILIPPINE FAULT ZONE comprise of?

Earthquake Effects

Ground failure effects

INDIRECT EFFECTS

TYPES OF EARTHQUAKES

Types of Seismic Waves

P waves

S waves

Love and Rayleigh

Can travel through any material, travels the fastest and has compression waves

Can only travel through solid materials, side to side movement

How fast does Secondary waves travel?

when both P and S waves reach the surface what does it make?

Measures the energy released at the source of the earthquake, from measuring seismographs

Measures the strength of shaking produced by earthquake at a certain location.

For each whole number there is a hoe many times increase in energy? for RICHTER SCALE

MINOR EARTHQUAKE CLASS

LIGHT EARTHQUAKE CLASS

MODERATE EARTHQUAKE CLASSES

STRONG EARTHQUAKE CLASS

MAJOR EARTHQUAKE CLASS

GREAT EARTHQUAKE CLASS

Intensity identifies what?

1

2

3

4

5

6

7

8

9

10

11

12

Magnitude 1-3.4