help can sum one please answer this now !!!!!!!!!!!!!!!!!!!!?

Broadly speaking, there are two types of earthquake waves, namely body

waves and surface waves. Body waves are waves that travel through the

Earth’s interior. Surface waves are waves that travel close to the

Earth’s surface, like waves on a lake.

There are two types of body waves, namely P-waves and S-waves. They are

as follows:

P-waves. P-waves are sometimes called pressure waves, and sometimes they

are called longitudinal waves. P-waves are transmitted through the

Earth’s interior with a backwards and forwards motion along the line of

travel, by alternating compression and dilatation. A jack hammer creates

P-waves. They are capable of passing through any type of material they

encounter, including the liquid of the Earth’s outer core, although they

will be bent and deflected when they pass across the boundaries separating

layers of different densities.

S-waves. S-waves are also called transverse waves. They travel with a

side-to-side or up and down motion, or a combination of the two, in which

the particles in the medium through which the wave is passing move at

right angles to the direction in which the wave is travelling. A good

analogy is the wave motion that occurs when you shake a rope or a curtain

cord which is fixed at one end. S-waves will not travel through liquid,

so they are stopped when they reach the Earth’s liquid outer core.

There are also two types of surface waves, namely Love waves and Rayleigh

waves. They are as follows:

Love waves. Also called L-waves, these are rather like horizontal S-

waves, but with the difference that the amplitude of the wave diminishes

rapidly with increasing depth, so that they can only travel long distances

close to the Earth’s surface.

Rayleigh waves. Rayleigh waves are similar to ocean waves, in that the

motion of each particle in the medium through which the wave travels

describes an ellipse as the wave passes, and the amplitude of the wave

decreases with increasing depth. Therefore, Rayleigh waves also travel

long distances only near to the Earth’s surface.

Types of earthquakes

There are many different types of earthquakes: tectonic, volcanic, and explosion. The type of earthquake depends on the region where it occurs and the geological make-up of that region. The most common are tectonic earthquakes. These occur when rocks in the earth’s crust break due to geological forces created by movement of tectonic plates. Another type,volcanic earthquakes, occur in conjunction with volcanic activity. Collapse earthquakes are small earthquakes in underground caverns and mines, and explosion earthquakes result from the explosion of nuclear and chemical devices. We can measure motion from large tectonic earthquakes using GPS because rocks on either side of a fault are offset during this type of earthquake.

http://scign.jpl.nasa.gov/learn/eq2.htm

http://library.thinkquest.org/03oct/01424/types_of_earthquakes.htm

http://www.allshookup.org/quakes/etypes.htm

Not sure about the two types of earthquakes – but there are two types of earthquake waves – body waves and surface waves. Body waves move from the focus of the quake to the surface and surface waves simply move along the surface.

Is this what you were asking?

Seriously. You couldn’t, I don’t know, have typed EXACTLY THE SAME WORDS into Google and actually *looked* for an answer?

Don’t be so lazy.

volcanic earthquakes and tectonic earthquakes