Seismology

Quake Causes

100

This type of plate boundry destroys earth by two plates, usually one continental and the other oceanic, colliding and one subducting underneath. The most famous of these is the Gorda Subduction Zone.

What is a Convergant Boundry?

200

This plate boundry creates new earth by moving two oceanic plates apart. The most famous of these is the mid-atlantic ridge.

What is a Divergent Boundry?

300

This is the most common cause of a quake in which two plates meet and usually slide against each other. The most famous of these is the San Andreas Fault.

What is a Transform Boundry?

400

Humans are blamed as the cause of this kind of quake. It's a contriversial theory that states that oil drilling and hydro-pumping can cause quakes in nearby seismic zones.

What is Fracking?

500

This happens when an asteroid slams into the planet and causes a ripple effect in the core that can last for weeks and months.

What is a Asteroid Ripple Quake?

Volcano Types

100

This type of volcano produces quiet lava eruptions that usually represent no danger to people and leak out massive amounts of runny lava. The most famous of these is the Motoki volcano in Hawaii.

What Is a Shield Volcano?

200

This volcano produces few eruptions and is named for the large blobs of cinder and lava ejected onto it's steep slopes. The most famous of these is pitchuann in mexico.

What is a Cinder Cone Volcano?

300

This volcano is the most common and creates large steep mountainous volcanoes. When these erupt they eject massive amounts of ash, lava, pyroclastic materials, and may even destroy parts of the volcano itself. The most famous of these is mount fuji.

What is a Stratovolcano?

400

This type of volcano is made up of the ghostly remnents of stratovolcanoes. They stand as erie reminders of how it formed through a single massive eruption. Sometimes they are extinct. The most famous are krakatoa and mount saint helens.

What is a Dome Volcano?

500

These volcanoes are the some of the biggest and more rare volcanoes. They can be several hundred miles long and exsist in underground calderas. They have lava chambers that are so large, eruptions are known to all be catastrophic and usually cause mass extinctions. The most famous of these are yellowstone and long valley.

What is a Supervolcano?

Historic Quakes

100

This quake occured in 1994 in central to southern california. The magnitude was 6.7 and killed 15 people. It also caused billions of dollars of damage.

What was Northridge?

200

This quake is the only one said to have been predicted ahead of time succesfully. It occured in tibet with a magnitude of 7 and was predicted 1 week beforehand.

What was Xiang?

300

This famed quake was the most probable reason for the start of seismology as it completely destroyed San Fransisco and jolted the ground 8 feet north. The magnitude was 7.4.

What was The Great San Fransisco Quake Of 1906?

400

This was the most powerful quake recorded by man at magnitude 9.5. It destroyed much of chile and effected every corner of the pacific with the resulting tsunami clocking in at 45 feet high.

What was The Great Santiago Quake Of 1960?

500

This was the most powerful quake in united states history and occured in Missouri. The magnitude was 8.8 and sparked more than 1000 magnitude 8, 7, and 6 aftershocks.

What was New Madrid?

Historic Eruptions

100

This eruption was the worst in united states history in washington state. It killed 67 people and flattened entire forests and towns. The ash plume blanketed everything as far away as utah.

What was The Mount Saint Helens Eruption Of 1980?

200

This eruption, probably the most famous of all time, occured in java indoneisa. The eruption destroyed nearby villages and the ash fallout reached every corner of the globe. The day is often reffered to as "The Day The Sun Turned Blue."

What was The Eruption Of Krakatoa?

300

This eruption occured in indoneisa and the following year was often reffered to as "The Year Without Summer". This was because the ash fallout caused tempatures to globally plummet and it snowed in july and august.

What was The Eruption Of Tambora?

400

This famed eruption buried the town of pompeii in 45 feet of volcanic ash and pumice.

What was The Eruption Of Mount Vesuvius?

500

This was the worst volcanic eruption in the history of mankind. It is estamated that there were only seven reproductive females after this eruption.

What was The Yellowstone Supereruption?

Mis.

100

This deadly ocean wave is usually caused by an earthquake, volcano, or a landslide.

What is a tsunami?

200

This type of volcano forms when a weakness in the earth's crust allows hot magma to escape out of the crust into an ocean, where it builds up small islands over time.

What is a Hotspot?

300

These are the largest and rarest eruptions that occur when magma escapes from the earth's core and is constantly replenished through a seemingly permanent hole in the athenosphere. This is blamed for the largest mass extinction to ever have occured.

What is a Siberian Trap?

400

This rare seismic event happens when the continents are thrust together or forced apart by magnetic and mantle forces.

What is a Pangea Conjoin/Split?

500

This super rare event happens when the magnetic poles reverse positions every 780 million years.

What is The Reshifting Of The Magnetic Poles?