on April 15, 2022
What caused the biggest tsunami?
GeologyHowever, it should be noted, that the largest tsunami wave ever observed anywhere in the world was caused by a rock fall in Lituya Bay, Alaska on July 10, 1958. What was the largest tsunami caused by? The highest, reliably measured tsunami on record occurred in Lituya Bay, Alaska on 9 July 1958. This was
on April 15, 2022
What does regional metamorphism look like?
GeologyRegionally metamorphosed rocks usually have a squashed, or foliated appearance – examples include slate, schist and gneiss (pronounced “nice”), formed by metamorphism of mudstones, and also marble which is formed by metamorphism of limestone. View an animation showing metamorphism. How do you identify regional metamorphism? Regional metamorphism occurs when rocks are buried deep in the
on April 15, 2022
What is the most dangerous fault in the world?
GeologyThe Hayward Fault is considered one of the most powerful fault lines in the world, running parallel to the potentially catastrophic San Andreas fault, and 150 years almost to the day, researchers warn it is overdue a quake. In 1868, the population living along the Hayward Fault was just 24,000. What is the most dangerous
on April 15, 2022
What are positive effects of tsunamis?
GeologyIn general, the positive effects of tsunamis include the redistribution of nutrients in coastal regions, the creation of new habitats, landscape changes, provision of new economic opportunities and study opportunities. What are the advantages and disadvantages of tsunami? Answer: Tsunamis can cause great loss of life and property damage in coastal areas. Very large tsunamis
on April 15, 2022
What type of fault is the Calaveras Fault?
Geologystrike-slip faultsstrike-slip faults – the western side moves northward relative to the eastern side. The researchers found that the underground portion of the Hayward Fault meets the Calaveras Fault 10 kilometers farther north than where the creeping surface traces of both faults meet. What type of fault is the Whittier Fault? lateral strike-slip fault Geology.
on April 15, 2022
What two types of measurements do scientists use to describe the size of earthquakes?
GeologyThere are two ways in which scientists quantify the size of earthquakes: magnitude and intensity. You have probably heard of the Richter scale which is still used for small earthquakes, but most large earthquakes are now commonly reported using the moment magnitude scale (see below). What measurement is used to measure earthquakes? The Richter scale
on April 15, 2022
How much does volcanic rock cost?
GeologyIs volcanic rock expensive? That’s when lava rocks for garden mulch become a major pain. Costly to Replace – Once you add it into your soil, taking it out to replace it with any other kind of mulch is very costly. It is expensive not only in terms of money but also in terms of
on April 15, 2022
How old is an ammonite fossil?
GeologyAmmonites lived during the periods of Earth history known as the Jurassic and Cretaceous. Together, these represent a time interval of about 140 million years. How old is my ammonite? Ammonites, which evolved about 416 million years ago, were once the most abundant animals of the ancient seas. Scientists have identified more than 10,000 ammonite
on April 15, 2022
What is an interior shear wall?
GeologyA shear wall is a general term for a wall that is designed and constructed to resist racking from forces such as wind using masonry, concrete, cold-formed steel, or wood framing. Shear walls significantly reduce the sway of a structure to reduce damage to the structure and its contents. How do you determine if a
on April 15, 2022
How did the flood that formed the Scablands happen?
GeologyThese floods were periodically unleashed whenever a large glacial lake broke through its ice dam and swept across eastern Washington and down the Columbia River Plateau during the Pleistocene epoch. The last of the cataclysmic floods occurred between 18,200 and 14,000 years ago. How was the Scablands formed? The channeled scabland was created where the