Earthquakes by Hailey Boltin

Vocabulary

haileybb0214 — 2015-03-19 16:47:27 UTC

>Epicenter-- is the place above the ground that is directly above the focus

>Surface wave-- commonly known as either Love waves (L waves) or Rayleigh waves.

>Fault-- a crack or fracture in the earths crust

>Plate-- huge slab of earths layers called the lithosphere (the crust and upper mantle)

>Seismograph-- an instrument that measures and records details of earthquakes,

such as force and duration.

Imagine this...

haileybb0214 — 2015-03-19 16:57:35 UTC

Break a block of foam rubber in half.
Put the pieces on a smooth table.
Put the rough edges of the foam rubber pieces together.
While pushing the two pieces together lightly, push one piece away from you along the table top while pulling the other piece toward you. See how they stick?
Keep pushing and pulling smoothly.

(Soon a little bit of foam rubber along the crack (the fault) will break and the two pieces will suddenly slip past each other. That sudden breaking of the foam rubber is the earthquake. That's just what happens along a strike-slip fault)

What happens

haileybb0214 — 2015-03-19 17:04:13 UTC

Earthquakes are caused when two different plates move in different directions creating a fault, or crack. The rumbling and shaking we feel is the plates actully seperating.

Fact:

haileybb0214 — 2015-03-19 17:11:43 UTC

>Earthquakes are usually caused when rock underground suddenly breaks along a fault

Theory of plate techtonics

haileybb0214 — 2015-03-23 17:09:08 UTC

There are three main plate tectonics; extensional, transform, and compressional.

Making it real!

haileybb0214 — 2015-03-24 16:48:40 UTC

By using the site,

http://earthquake.usgs.gov/earthquakes/map/

I determined that there was an earthquake exactly 9km NNW of Caldwell, Kansas. The magnitude of this particular earthquake is 3.8 mb_lg. The magnitude of an earthquake is determined by the amplitude of the seismic waves. The depth of this specific earthquake is 7.9km.

A REAL (made up) EXAMPLE

haileybb0214 — 2015-03-31 16:54:08 UTC

This is a picture taken of an Earthquake that occurred In Haileyville, South Carolina. The Epicenter was located approximately 5miles from Haileyville, near Boltonia. Scientist believe that a fault in the Earths crust stretching several hundred miles long may have had an impact on the turn out of this earthquake. Scientist have concluded that a level 4 earthquake has occurred.

Epicenter Visual

haileybb0214 — 2015-04-07 15:53:04 UTC

Surface wave visual

haileybb0214 — 2015-04-07 15:53:29 UTC

Fault line visual

haileybb0214 — 2015-04-07 15:53:49 UTC

Plates Visual

haileybb0214 — 2015-04-07 15:54:28 UTC

Seismograph visual

haileybb0214 — 2015-04-07 15:54:47 UTC

BE IN AN EARTHQUAKE

haileybb0214 — 2015-04-07 16:14:34 UTC

How They occur

haileybb0214 — 2015-04-07 16:43:29 UTC

EXPERMENT

haileybb0214 — 2015-04-07 16:57:40 UTC

Supplies: 5 different kool aid flavors/colors, rice, paper, large clear vase

step 1: pour one cup of water in with each kool aid packet in different cups, add a cup of rice to each mixture

step 2: let the rice absorble the color, then drain the extra water

step 3: after the rice is dried, poor each cup of rice into the vase, making 6 different layers(one is normal rice)

step 4: after each layer is in the vase, use you paper to create a fault line

step 5: see what happens!? the layers split and slid into eachother, much like during an earthquake

BY: HAILEY BOLTIN

haileybb0214 — 2015-04-07 17:09:36 UTC