Volcanoes and Tsunamis
ALL NEW Geology Quiz No. 2
Hello there and thank you for showing interest in this lens. Are you ready for another fun-filled geology lens and quiz? In this lens I'm going to tell you some interesting things about geology, specifically about volcanoes and tsunamis. Then if you want, you can take a quiz.
I am a geology major and making these geology-related lenses and quizzes helps me to learn more about the subject. Geology is fascinating and it can provide us with a whole new outlook on the world in which we live. Geology not only tells us what type of rocks are in our area, but why they are there and where they originated. It provides us with valuable information about the Earth's features and formations, about natural disasters such as volcanic eruptions and earthquakes, and so much more.
I hope you find this lens and quiz not only educational but enjoyable as well. Have fun taking this challenging geology quiz. Good luck!
Some Interesting Facts
As most people know, a devastating natural disaster occurred in Japan in 2011. This disaster was a tsunamis. A tsunami is a series of seemingly non-stop waves that travels inland several hundred feet. Tsunamis occur where there is a sudden vertical displacement of the water in a large body of water from such things as an earthquake, volcanic eruption, landslide or some other disturbance.
The waves in a tsunami are different from the normal, everyday sea waves as they have a longer wavelength. Sometimes tsunamis are referred to as tidal waves because at first, the tide rises high but is then proceeded by a series of waves which can last for minutes to hours arriving in a "wave-train" to distant shores.
Illustration of the Japanese Tsunami and how it affected the Pacific Ring of Fire.
Can Earthquakes and Volcanic Eruptions Be Predicted?
Earthquakes are impossible to predict or detect prior to their taking place, but sometimes volcanic eruptions can be detected several days prior to the eruption. This is because oftentimes a volcano that is about to erupt will begin to look different than normal. For example, sometimes a large bubble will begin to form on one side of the volcano or the volcano will begin emitting small amounts of smoke or steam.
There are several types of volcanoes that have their own type of eruptions. The types of volcanoes are: shield volcanoes, lava domes, cryptodomes, cinder cones, stratovolcanoes or composite volcanoes, supervolcanoes, submarine volcanoes, subglacial volcanoes, mud volcanoes, and fissure vents. Each type of volcano has different material that it erupts and this material is of varying temperature.
Pyroclastic eruption from a stratovolcano.
Cinder Cone Volcano
Mt. St. Helens, Cryptodome
Supervolcano in Yellowstone Park