Colossal Mysteries: The Tunguska Event Quiz

What are some of the speculated causes of the Siberian explosion mentioned in the introduction?

• All of the above

• A weapons test

• A meteorite

• A volcanic eruption

How did eyewitnesses describe the explosion in Siberia?

• A small fire in the forest

• A large column of blue light and a fireball

• A quiet rumble in the distance

• A sudden rainstorm

What was one of the initial theories about the cause of the explosion?

• A volcanic eruption

• A tsunami

• A nuclear bomb

• A large earthquake

What did the Soviet team expect to find at the explosion site?

• A large crater

• A treasure trove of gold

• A new species of plant

• A hidden city

What unusual pattern did scientists find at the site of the explosion?

• A ring of charred tree trunks with branches ripped off

• A perfect circle of untouched trees

• A field of flowers

• A frozen lake