5 to 700 kilometers

Answer:

Origin of earthquakes occur at what depths?

Focus or hypocenter

Answer:

what is located 5 to 700 kilometers below earths surface?

The waves in a pod when a rock is dropped in it.

Answer:

What is an example of something similar to seismic waves?

30,000

Answer:

How many earthquakes occur annually, that are strong enough for humans to feel?

75

Answer:

About how many strong earthquakes are recorded each year?

Fires

Answer:

In the famous 1906 San Francisco earthquake, much of the damage was caused by what?

Pacific plate and North American plate

Answer:

During H.F. Reid's study of the 1906 San Francisco EQ, what two plates did he believe were involved in the Quake?

Slippage

Answer:

What allows the deformed(strained) rock to "snap back" to its original stress free shape?

Rock elastically returning to its original shape

Answer:

The vibrations we know as an EQ are generated by the?

Several months

Answer:

How long does it take for aftershocks to diminish?