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30 Fabulous Facts About Mount St Helens!

It was just 36 years ago when Mount St. Helens erupted. Want to know more about the erupted volcano? Have a look at these facts About Mount St Helens below and feed yourself with knowledge.

The explosion swept over 1,300 feet off the top of the mountain and poured on the ground for miles. Eastern Washington was covered in volcanic ash. The cloud moved throughout all of the United States in 3 days and encircled Earth within 15 days.

Thanks to the U.S. Geological Survey, here are some additional facts about the volcano, which is active.

Facts About Mount St Helens

1 During the last four thousand years, Mount St. Helens has been active more often than any other mountain within the Cascade Range.

2 Most of the area of Mount St. Helens is older than 3,000 years (younger than those of Egypt).

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3 Some Native American names that reference smoke from the volcano are Lawal Clough, Low-We Lat-Klah, Low-We-Notand Low-We-Not. That, Loowit, Loo-wit, Loo-wit Lat-kla, and Louwala-Clough.

4 3,600 years ago, Native Americans left hunting areas devastated by a massive eruption four times bigger than the May 18, 1980 eruption.

5 1792–Captain George Vancouver named the volcano in honor of Britain’s ambassador to Spain, Alleyne Fitzherbert, also called Baron St. Helens.

6 1975–U.S. Geological Survey geologists forecasted that Mount St. Helens would explode again, “possibly before the end of the century.”

7 March 20, 1980–A magnitude 4.2 earthquake marked the reactivation of the volcano following more than 123 years.


8 Spring 1980–Magma that was rising has pushed the volcano’s north slope to the west, 5 feet per day.

9 Morning in May, 1980The largest landslide in terrestrial history ever recorded diminished the height of the mountain by 1,300 feet and set off the side-blast.

10 Within three minutes, the lateral blast moving at more than 300 miles/hour burned the forest for 230 square miles.

11 Within 15 minutes, an upward eruption of volcanic ash grew to over 80,000 feet.

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12 Afternoon in May 1980 – The dense cloud of ash transformed daylight into darkness in the eastern part of Washington and caused streetlights to come into a blaze at Yakima and Ritzville.

13 The volcano ash cloud moved to the east of the United States in 3 days and then encircled Earth within 15 days.

14 Lahars (volcanic flow of mud) overflowed rivers with sand, rocks, and mud, wrecking 200 homes and 27 bridges and forcing 31 vessels to stay in ports downstream.

15 The May 18 eruption of 1980 was the most damaging economic eruption of volcanic activity in U.S. history.

16 Small trees and plants beneath the winter snow and roots protected by soil survived the May 18, 1980, volcanic eruption and today thrive.

17 Thousands of mammals, birds, reptiles, amphibians, reptiles and millions of fingerlings from hatchery were killed during the eruption.

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18 Late May 1980–Wind-dispersed Spiders and beetles that scavenge have been the initial species that returned to the Mount St. Helens area.

19 The landscape destroyed by the eruption has transformed into a diverse and rich habitat for animals and plants.

20 Effects caused by the May 18, 1980 eruption are still evident to be felt today. Biologists assist steelhead and wild salmon by providing them with a tank-truck trip to the clean, clear streams that flow over sediment-laden rivers.

21 Late spring to fall of 1980–Explosive eruptions on May 25, June 12, July 22, August 7, and October 16-18 shook Mount St. Helens and scattered ash across distant communities.

22 In1982–Mount Street. Helens National Volcanic Monument was created for the public to witness the massive destruction and the astonishing regeneration of both animals and plants.

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23 October 1988, between October 1980 and 1986, over seventeen episodes of eruptions, the lava started filling the crater with lava, creating the lava dome, which grew to 876 feet high above the crater’s floor.

24 Since 1986, the accumulation of snow and rocks in the dark, shaded crater has created Crater Glacier, the newest glacier on Earth.

25 September 2004–Mount Street. Helens was reactivated and continued to erupt up to January.

26 From October 2004 to January 2008 — Growing, the lava domes moved and later separated Crater Glacier into east and west lobes. Ice lobes slid downslope at a rate of six feet daily. They then converged beneath the lava dome less than three years after.

27 During the 2004-2008 eruptions, Mount St. Helens settled 12 inches due to magma evaporation beneath the volcano.

28 The Global Positioning System (GPS) device that has detected the movement in Mount St. Helens can detect movements as small as 1/16 inch. It uses less energy than a lightbulb in a refrigerator.

29 During the 1980s to 1986 and 2004-2008 eruptions, lava oozed out onto the crater’s floor, creating domes taller than the Empire State Building and restoring 7 percent of the lost volume of 1980.

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30- Mount Street. Helens is still a world-famous natural laboratory to study the natural complexities of Earth’s processes and the natural response to disasters.

Ru is an entertainment nerd who likes to spill the beans about what's happening in the entertainment industry. She comes up with well-researched articles so that you can "Netflix and Chill." Come join her as she has a lot to tell her readers.


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