Earthquake Vocab
One scale is used to rank earthquakes, which measures the amplitude of seismic waves. Each whole number increase on this scale represents 10 times greater seismic waves.
What is the Richter scale?
Viscous, "liquid", rock located on the surface of Earth is called this.
What is lava?
A volcano that is currently erupting, or recently erupted, is called this.
The Ring of Fire lines this ocean.
What is the Pacific Ocean?
To determine the epicenter of an earthquake, scientists must measure the difference in travel time between P and S waves recorded from seismographs taken from at least this number of seismic stations.
What is three?
The Ring of Fire is made up of many of these two geological features?
What are earthquakes and volcanoes?
This is the most common cause of tsunamis.
What is a earthquake (under the ocean floor)?
A volcano that is tall and cone-shaped, with high-silica magma, and high or low levels of gas.
What is a composite volcano?
The majority of the Ring of Fire is located on this type of plate boundary.
What is a convergent boundary?
These are the names of the two types of seismic waves produced by an earthquake.
What are P waves and S waves?
The stick-slip motion that produces earthquakes can happen at this type (or these types) of tectonic plate boundaries.
What is convergent, divergent and transform fault?
A volcano is not currently active, but may become active again in the future is called this.
What is a dormant volcano?
Seismologists use the difference in arrival time between P and S waves to calculate the distance between these two things.
What is a seismic station and the epicenter of an earthquake?
On the Richter scale, an earthquake of magnitude 7.3 is this many times greater than an earthquake of magnitude 5.3.
What is 100?
These are the three things that help rock in Earth's interior to melt.
What are high temperature, water, and low pressure?
More earthquakes and volcanoes are found in this state than any other.
What is Alaska?