Category: Geology

How is a mid ocean ridge formed?

Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt. How are mid-ocean ridges formed for kids? The mid-ocean ridge is formed where two tectonic plates meet under the

What year was the big earthquake in Alaska?

What was the worst earthquake in Alaska? On March 27, 1964, at 5:36 p.m. (03:36 3/28 UTC), a great earthquake of magnitude 9.2 (moment magnitude) occurred in the Prince William Sound region of Alaska. When did Alaska have a 7.2 earthquake? Major magnitude 7.2 earthquake – Valdez-Cordova Parish, 131 mi southeast of Fairbanks, Alaska, USA,

What happened to Elizabeth Vargas on ABC?

After ABC News dropped Elizabeth Vargas from Good Morning America, the organization employed her on a number of primetime newsmagazine shows, including 20/20, and named her a weekend news anchor on World News Tonight, according to Page Six. Where Has Elizabeth Vargas been? Vargas currently serves as the host of FOX’s America’s Most Wanted and

How dangerous is Mount Merapi?

Based on data from the National Disaster Management Agency (BNPB), the disaster of Mount Merapi eruption claimed a total of 308 deaths, and the total damage and losses reached 3.62 trillion rupiahs in the Yogyakarta and Central Java regions [1]. Volcanic eruptions have a large impact or potential loss. Is Merapi dangerous? Merapi-type eruptions are

What is the longest lasting volcanic eruption?

The Pu’u’ō’ō eruption began in 1983, and ranks as the longest and most voluminous known outpouring of lava from Kīlauea Volcano’s East Rift Zone in more than 500 years. What is the longest volcanic eruption? Lava has been spilling out of Puu Oo crater since 1983, making Kilauea the world’s longest continuously erupting volcano. Kilauea

How do you split rocks by hand?

What can break a rock in half? A crack hammer works best for large rocks. For smaller rocks, a rock hammer/pick or household hammer will work fine. Put the bag of rocks on a firm surface (concrete or asphalt), and knock gently. Slowly apply more pressure, until you feel the rocks start to break. How

How is a terminal moraine different from a recessional moraine?

What is the difference between a recessional and terminal moraine? There are two types of end moraines: terminal and recessional. Terminal moraines mark the maximum advance of the glacier. Recessional moraines are small ridges left as a glacier pauses during its retreat. What is recessional moraine? A recessional moraine consists of a secondary terminal moraine

What is one reason that geologists study rock bodies?

Geologists are ‘earth detectives’. Just like other detectives, we need clues that can help us explain what happened in the past. Studying what happens at the coast, in rivers or in the desert can help us figure out how landscapes change and sedimentary rocks form. Why do geologists study rocks? Geologists study rocks because they

What crystals Cannot be cleansed in salt?

Can you put quartz in salt water? Saltwater. While Clear Quartz has a rating of 7 on the Mohs scale of hardness, it is still susceptible to damage when exposed to saltwater. Can moonstones go in salt? Vibration Cleansing Another way is by cleansing the Moonstone gem in salt water as salt has always been

What is the biggest earthquake in California history?

​​California’s Largest Recorded Earthquakes Since 1800, Ranked by Magnitude​ ​​Magnitude​ Date Location​ 7.9 Jan. 9, 1857 Fort Tejon 7.8 April 18, 1906 San Francisco 7.4 Mar. 26, 1872 Owens Valley 7.4 Nov. 8, 1980 W. of Eureka* Is a 10.0 earthquake possible in California? No, earthquakes of magnitude 10 or larger cannot happen. The magnitude

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