Justin Blocker by Justin Blocker

What are Earthquakes

justinmb0601 — 2015-03-19 18:20:16 UTC

A sudden violent shaking on the ground, caused by movements of Earth's crust or volcanoes

What can cause them

justinmb0601 — 2015-03-23 18:06:32 UTC

The majority of naturally-occurring earthquakes are triggered by movement of the earth's tectonic plates.

Vocabulary

christopher_guy — 2015-03-23 18:14:44 UTC

Seismology- The study of Earthquakes

Deformation-The bending, tilting, and breaking of Earths crust; the change in the shape of rock in response to stress.

Elastic rebound- the sudden return of elastically deformed rock to its undeformed shape

Seismic wave- A wave of energy that travels through the Earth, away from an earthquake in all directions

P wave- A seismic wave that causes particles of rock to move in a back-and-forth direction.

S wave -a seismic wave that causes particles of rock to move in a side-to-side direction

Tectonic plates

Giant pieces of the Earth's thin, outermost layer that move around on top of a layer of plastic rock

fault

A break in the Earth's crust along which blocks of the crust slide relative to one another

Seismograph- A tracing of earthquake motion that is created by a seismograph

Diagram

justinmb0601 — 2015-03-24 17:51:43 UTC

Another diagram

justinmb0601 — 2015-03-24 18:14:49 UTC

justinmb0601 — 2015-03-24 18:16:16 UTC

justinmb0601 — 2015-03-24 18:30:41 UTC

justinmb0601 — 2015-03-31 18:07:12 UTC

What faults do Earthquakes form on

justinmb0601 — 2015-03-31 18:07:45 UTC

Earthquakes form on

* Reverse Faults

* Normal Faults

* Strike-slip Fault

Reverse Fault

justinmb0601 — 2015-03-31 18:25:59 UTC

The exact oppsate of an Normal fault.

Normal Fault

justinmb0601 — 2015-03-31 18:26:28 UTC

Drops one rock on one side of the fault down relative to the other side.

Strike-Slip fault

justinmb0601 — 2015-04-01 18:08:26 UTC

The movement of blocks along a fault is horizontal.

Constructive ways about a Earthquake

justinmb0601 — 2015-04-01 18:09:12 UTC

Earthquakes are partially responsible for Tectonic Plates and their movement. If they did not have earthquakes the the Earth world look like Pangea.

Destructive ways about a Earthquake

justinmb0601 — 2015-04-01 18:09:32 UTC

Earthquakes can be one of the most dangerous things on the planet. They do things such as

- Destroy building and hurt people in densly populated ares

- Can cause volcanoes

justinmb0601 — 2015-04-01 18:10:19 UTC

How to determine the damage of one.

justinmb0601 — 2015-04-01 18:25:30 UTC

The level of damage done to a structure depends on the amplitude and the duration of shaking.

Facts about Earthqaukes

justinmb0601 — 2015-04-07 18:03:46 UTC

1. Almost 80% of all the planet's earthquakes occur along the rim of the Pacific Ocean, called the "Ring of Fire

2. The highest recorded Earthquake was at a level of 9.5! It was recorded in Chile, May 22, 1960. The name of it was Chilean Earthqiake.

3. It was said that people all around the world you feel some part of the Earthquake for days.

4. Natural events such as volcanic eruptions and meteor impacts can cause earthquakes.

5. Alaska is the most earthquake-prone state and one of the most seismically active regions in the world

https://www.dosomething.org/facts/11-facts-about-earthquakes

How are Earthquakes formed

justinmb0601 — 2015-04-07 18:15:00 UTC

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little.

Why do Earthques form on faults

justinmb0601 — 2015-04-07 18:22:46 UTC

Because that is where the stress builds up from two adjacent, moving lithospheric plates

Exanple of aStrike-Slip Fault

justinmb0601 — 2015-04-07 18:26:13 UTC

justinmb0601 — 2015-04-07 18:28:30 UTC