Alaska averages 100 earthquakes a day. Learn why they happen and explore significant earthquakes in Alaska's history.
The "bore" is a tidal phenomenon in which the leading edge of the incoming tide clashes with the flow of the outgoing tide to form a wave that travels up a river or narrow bay. Learn where and when these happen and enjoy a video showing bore tides.
Explore different kinds of volcanoes and learn about volcanoes in Alaskan history and where to find volcanic activity in Alaska, today.
Learn about ice rainbows in the sky that 'dog' the sun.