The hot, molten material that flows from a volcano.
What is lava?
This is thought to be "fuel" to hurricanes.
What is warm water?
The scale that measures tornado wind speeds.
What is the Fujita Scale?
A long crack in the surface of the earth where earthquakes are likely to occur.
What is a fault line?
A prolonged period of abnormally low rainfall.
What is a drought?
The ring that circles the Pacific Ocean where volcanic activity is common.
What is the Ring of Fire?
The center of a hurricane, where the weather is calm.
What is the eye of the hurricane?
The name of area in the central U.S. where tornado activity is elevated.
What is Tornado Alley?
The geologic process that causes earthquakes.
What is plate tectonics?
The most common cause of tsunamis.
What are earthquakes?
Along convergent plate boundaries, volcanoes form due to this process.
What is subduction?
A tropical cyclone in the Pacific Ocean.
What is a typhoon?
This tool is used to predict tornadoes.
What is doppler radar?
An estimated 90% of all earthquakes occur in this region.
What is The Ring of Fire?
This occurs when heavy rain or rapid snow melt loosens vulnerable parts of the landscape on steep slopes.
What is a landslide?
or
What is a mudslide?
This is the grandest and most destructive type of volcano.
What is a composite volcano?
or
What is a stratovolcano?
The scale that is used to rank hurricanes according to sustained wind speeds. (Response must include the full name in order to be considered correct.)
What is the Saffir-Simpson Hurricane Wind Scale?
This nation has the most tornadoes per year.
In 2011, an underwater earthquake caused a tsunami that caused a nuclear disaster in this Japanese region.
What is Fukushima?
The speed that avalanches move.
What is 100mph?
The volcanoes of Hawaii were formed by these geologic locales.
What is a hot spot?
The minimum sustained wind speed a storm must have in order to be considered a hurricane.
A tornado with wind speeds of 270mph would be ranked as this category.
What is F5?
The scale that measures earthquakes based upon total energy released.
What is the moment magnitude scale?
The three most common causes of wildfires.
What are droughts, lightning, and human activity?