Volcanos
This is the name for molten rock below the Earth's surface.
What is magma?
The mating call of this insect can be used to estimate temperature - just add 40 to the number of chirps in 15 seconds.
What is a cricket?
About 40% of US hurricanes make landfall in this state.
What is Florida?
This phobia is a fear of thunder and lightning.
What is Astraphobia?
80% of tsunamis occur in this area of the Pacific Ocean, also the namesake of a chart topping Johnny Cash song.
What is the Ring of Fire?
These type of volcanos have not erupted in recorded history.
What are extinct volcanos?
The iron in this Parisian landmark can expand up to 6 inches during summer's hottest days.
What is the Eiffel Tower?
Around 7% of Northern Hemisphere hurricanes form in this ocean.
What is the Indian Ocean?
This Norse god of thunder and lightning lends his name to the thirstiest day of the week, Thursday.
Who is Thor?
This island nation has the longest recorded history of tsunami events.
What is Japan?
Volcanos occur at the shifting boundaries of these parts of the Earth's lithosphere.
What are tectonic plates?
This constellation's visibility in the summer inspired the name for the "Dog Days of Summer."
What is Canis Major ("Greater Dog")?
This is the minimum wind speed for a storm to be classified as a hurricane.
What is 74 mph?
This phenomena is occurs at the mouth of the namesake river and Lake Maracaibo in Venezuela, where lightning flashes up to 40 times a minute for 9 hours a day, ~150 nights of the year.
What is Catatumbo lightning?
This 1889 flooding event is considered the deadliest in US history and occurred right here in Pennsylvania.
What is the Johnstown Flood (Great Flood of 1889)?