Earthquake
The place where most earthquakes occur.
What is on a fault?
The type of volcano found at oceanic hot spots.
What is a shield volcano?
The device used to detect and measure seismic waves.
What is a seismograph?
The location underground where magma accumulates under a volcano.
What is the magma chamber?
Which type of wave (P or S) is going to cause most of the energy on a seismograph?
What is S-Wave?
A giant ocean wave caused by the movement of the ocean floor.
What is a Tsunami?
The type of volcano found at convergent plate boundaries.
What is a strato-volcano?
Who detects & measures earthquakes?
What is a seismologist.
A very fast moving, extremely hot cloud of ash and gas created by a volcanic explosion.
What is a pyroclastic flow?
The best safety procedure when you are inside a building during an earthquake.
What is to immediately get under a door frame or desk?
The underground point of origin for an earthquake.
What is the focus?
What builds shield volcanoes?
What is magma?
The intensity of an earthquake is measured using this scale.
What is the Modified Mercalli scale or Ritcher scale?
The two factors that create explosive eruptions.
What is the gas and silica content of the magma?
The type of convergent plate boundary where volcanoes do not occur.
What is a continent to continent convergent boundary?
The location where all earthquake surface waves begin.
What is the epicenter?
The type of eruption happens with strato-volcanoes.
What is intermediate eruptions?
What typically causes an earthquake?
What is transform boundary's energy.
Two early warning signs of an impending volcanic eruption.
What is increased earthquake frequency and magnigute and surface deformation (i.e. rising surface elevation)?
The reason why you cannot predict "when" an earthquake will occur?
Because you cannot measure the amount of stress present in the rock strata.
The wave pattern of P and S waves.
What is a push-pull pattern for P waves (longitudinal) and a up-down pattern for S waves (transverse)?
What are the layers of a volcano called?
What are strata layers.
The S-P interval of an S-wave that arrives at 4:25:15am and a P-wave that arrives at 4:24:45.
What is 30 seconds?
types of volcano that is violent and explosive
What are cinder cones?
The reason why it is easier to predict approximately when volcanoes will erupt.
Because they give many signs such as gas release, small earthquakes, and increasing ground temperatures.