Vocabulary
Study of earthquakes
What is Seismology
Densest layer of Earth interior
What is the core
Surface location above the source of an earthquake
what is the epicenter
Large gentle slope volcano type formed by mostly basaltic lava flows
What is a Shield Volcano
a release of elastic energy stored in earth crust
What is an earthquake
also called the Plastic Mantle
What is the Asthenosphere
The thickest layer of the Earth
What is the mantle.
Location within the crust where quake waves are first generated.
What is the focus or hypocenter
The volcano type created mostly by pyroclastics
What is a Cinder Cone
Three magma factors that determine eruption style
What is magma composition, temperature, and gas content
Term referring to dark igneous lava composition
What is the Mafic or Basaltic
Discontinuity in seismic wave velocity indicating the bottom of the brittle crust of the Earth
What is the Moho
Instrument used to measure quake waves
What is a seismograph
Volcanic depression left after a super volcano eruption like Yellowstone or Toba
What is a Caldera
This type of fault is evidence of convergence
What is a Reverse or Thrust Fault
Process that eventually return crustal material to the mantle.
What is subduction
The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)
What is the lithosphere
distance to the epicenter if lag time is 5 minutes
What is 3500km
This is a North American stratovolcano. It erupted last in 1980.
What is Mt St Helens
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
An upward warped fold in rock layers
What is an Anticline
Two bits of evidence that the outer core is moving metallic material
Earthquake S waves cannot pass through it.
Earth has a magnetic field.
difference in shaking energy of a Richter Magnitude 7 quake from a Magnitude 1
What is 1 million times more
The composition of lava that flows most slowly?
What is Rhyolitic or granitic or Aa lava
This person developed the theory of Continental Drift
Who is Wegener