Earth quakes by Matthew DeCarlo

matthewpd1023 — 2015-03-19 17:13:27 UTC

This is a map of all the main tectonic plates

matthewpd1023 — 2015-03-23 16:57:29 UTC

This is a fault line, fault lines

are where most earthquakes

occur.

San Andreas fault

matthewpd1023 — 2015-03-23 17:13:12 UTC

matthewpd1023 — 2015-03-24 16:56:27 UTC

Earthquakes are caused when underground

rock (tectonic plates) suddenly breaks along a fault

matthewpd1023 — 2015-03-24 16:59:45 UTC

Fault- a thin zone of crushed rock

separating blocks of the earth's crust

Epicenter- the point on the earth's surface

vertically above the focus of an earthquake

Focus- a central point of attention

S Wave- the secondary wave of an earthquake

P Wave- the primary wave of an earthquake

After Shock- a small secondary earthquake usually

following a larger more powerful earthquake

Richter Scale- a numerical scale for expressing the

magnitude of an earthquake on the basis of seismograph

oscillations

matthewpd1023 — 2015-03-24 17:12:58 UTC

A transform boundaries are places where plates slide sideways past each other. At transform boundaries lithosphere is neither created nor destroyed.

matthewpd1023 — 2015-03-31 16:57:51 UTC

the cause/start of an earthquake

matthewpd1023 — 2015-03-31 16:59:42 UTC

The primary and secondary shock-

waves of an earthquake

matthewpd1023 — 2015-03-31 17:05:00 UTC

The scale used to measure the

magnitude of a earthquake

via 1-10 1 being weak 10 being monsrumental.

matthewpd1023 — 2015-03-31 17:08:30 UTC

a secound earthquake following a srong

earthquake