Earthquakes
This type of reaches is record first on a seismograph because it travels the fastest.
What is a P-wave?
The boundaries along which most volcanoes erupt.
What are divergent plate boundaries?
When magma escapes the crust to become lava, that magma has done this.
What is erupted.
The largest mark represents this on a seismogram.
What is the main shock?
This is the point on the surface where the earthquake is first felt.
What is Epicenter?
This scale, created in 1935, is used to assess how strong an earthquake is with a number.
What is the Richter Scale?
Most of the active volcanoes in the world are located here.
What is the Ring of Fire?
This type of mountain is formed by magma pushing up on the lithosphere without breaking through it.
Seismic waves that cause the most damage at Earth's surface.
What are surface waves?
This piece of technology, although it has been around for a long time, is effective in measuring vibrations from seismic waves.
What is a seismograph?
Each level on the Richter scale is this many time greater than the last.
What is 32?
Volcanoes are not perfectly smooth, potentially having valleys because of these natural processes.
What is weathering and erosion?
The type of volcano with gentle slopes made from basalt.
What is a shield volcano?
By studying earthquakes, scientists have learned more about Earth's...
What is interior?
This is the zone created because s-waves can't pass through the liquid in the Earth's core.
What is the s-wave shadow zone?
Where most earthquakes occur.
What is along plate boundaries?
Not to be confused with Mount Everest, which has the highest elevation, this mountain is the tallest on earth.
What is Mount Mauna Kea?
These are hot pieces of rock emitted during many volcanic eruptions.
What are Pyroclastic materials?
This is where the earthquake began.
What is the focus?
This type of fault occurs when the hanging wall slides so that it's below the foot wall.
What is a normal, dip-slip fault?
This type of seismic wave moves in a direction through the Earth parallel to the particle Vibrations.
What is P-wave?
These gases can be found when a volcano erupts.
What are water vapor, sulfur dioxide, hydrogen sulfide, and carbon dioxide?
After a Volcano erupts and becomes extinct, the surrounding rock may fill that hole, the crater that forms is called this.
What is caldera?
This is the tectonic plate that causes 90% of volcanic eruptions.
What is the pacific plate?
When seismic waves pass through the Earth's core, they might bend because of these two wave behaviors.
What is reflection and refraction?