The area or region where most earthquake and volcanic activities occur.
Pacific Ring of Fire
A force that acts on rocks to change its shape and volume
stress
A series of waves caused by earthquakes or undersea volcanic eruptions.
tsunami
A break in the Earth’s crust along which significant movement has taken place.
fault
The total amount of energy released measured by the Richter Scale.
magnitude
A type of fault wherein rock layers on opposite sides of a fault slide pass each other horizontally.
strike-slip fault
Fault created by tension forces
normal fault
The hanging wall slides up and over the footwall is what kind of fault?
reverse fault
What do you mean by PHIVOLCS
Philippine Institute of Volcanology and Seismology
The magnitude of an earthquake is a measure of the amount of ________________ released.
energy
The trace of the fault on the surface of the earth.
fault line
Stretching rock so it becomes thinner in the middle is what kind of stress?
tension
Type of fault that has moved in the past and is expected to move again.
active fault
Fault created by shearing
strike-slip fault
The study of earthquakes
Seismology
This is where fault slip or fault movement happens
fault plane
The image shown is a __
normal fault
It is a measure of the effects of an earthquake at a given point, describing the degree of ground shaking and the resulting damage in a particular area.
intensity
Among the government agencies of the Philippines, what particular agency focused on monitoring Earth's crust?
PHIVOLCS
Fault created by compression
reverse fault
The spot directly above the focus on the surface of the Earth.
epicenter
measures intensity
Mercalli scale
Major earthquakes are often followed by somewhat smaller events known as?
aftershocks
The one who study earthquakes
seismologists
Squeezing rock until it breaks is what stress?
compression