Definitions for mount st. helens
mount st. he·lens

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Mount Saint Helens, Mount St. Helens, Mt. St. Helensnoun

   an active volcano in the Cascade Range in southwestern Washington; erupted violently in 1980 after 123 years of inactivity

WiktionaryRate this definition:0.0 / 0 votes

1. Mount St. Helensnoun

   A stratovolcano in the US state of Washington.

WikipediaRate this definition:0.0 / 0 votes

1. Mount St. Helens

   Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast of Portland, Oregon, and 98 miles (158 km) south of Seattle. Mount St. Helens takes its English name from that of the British diplomat Lord St Helens, a friend of explorer George Vancouver who surveyed the area in the late 18th century. The volcano is part of the Cascade Volcanic Arc, a segment of the Pacific Ring of Fire. The Mount St. Helens major eruption of May 18, 1980 remains the deadliest and most economically destructive volcanic event in U.S. history. Fifty-seven people were killed; 200 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche, triggered by a magnitude 5.1 earthquake, caused a lateral eruption that reduced the elevation of the mountain's summit from 9,677 ft (2,950 m) to 8,363 ft (2,549 m), leaving a 1 mile (1.6 km) wide horseshoe-shaped crater. The debris avalanche was 0.6 cubic miles (2.5 km3) in volume. The 1980 eruption disrupted terrestrial ecosystems near the volcano. By contrast, aquatic ecosystems in the area greatly benefited from the amounts of ash, allowing life to multiply rapidly. Six years after the eruption, most lakes in the area had returned to their normal state.After its 1980 eruption, the volcano experienced continuous volcanic activity until 2008. Geologists predict that future eruptions will be more destructive, as the configuration of the lava domes require more pressure to erupt. However, Mount St. Helens is a popular hiking spot and it is climbed year-round. In 1982, the Mount St. Helens National Volcanic Monument was established by President Ronald Reagan and the U.S. Congress.

ChatGPTRate this definition:0.0 / 0 votes

1. mount st. helens

   Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It is renowned for its catastrophic eruption on May 18, 1980, which was one of the deadliest and most economically destructive volcanic events in U.S. history. This volcano is part of the Cascade Range and sits within the Mount St. Helens National Volitional Monument. It is a popular site for scientific research and recreation.

Matched Categories

1. • Cascades
   • Volcano

How to pronounce mount st. helens?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say mount st. helens in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of mount st. helens in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of mount st. helens in Pythagorean Numerology is: 5

Examples of mount st. helens in a Sentence

1. The USGS:

   The magma chamber is likely imparting its own stresses on the crust around and above it, as the system slowly recharges. The stress drives fluids through cracks, producing the small quakes. The current pattern of seismicity is similar to swarms seen at Mount St. Helens in 2013 and 2014; recharge swarms in the 1990s had much higher earthquake rates and energy release.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=mount st. helens
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Mount_St._Helens
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Mount_St._Helens
4. ^ ChatGPT
   https://chat.openai.com