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The ash cloud produced by the eruption, as seen from the village of Toledo, Washington, 35 mi (56 km) to the northwest of Mount St. Helens: The cloud was roughly 40 mi (64 km) wide and 15 mi (24 km; 79,000 ft) high. Ash cloud from Mt. St. Helens as captured by the GOES 3 weather satellite at 15:45 UTC.
Mount Hood, the nearest major volcanic peak in Oregon, is 60 miles (100 km) southeast of Mount St. Helens. Mount St. Helens is geologically young compared with the other major Cascade volcanoes. It formed only within the past 40,000 years, and the summit cone present before its 1980 eruption began rising about 2,200 years ago. [ 11 ]
English: This slide shows Mount St. Helens, one day before the devastating eruption. The view is from Johnston Ridge, six miles (10 kilometers) northwest of the volcano. Bahasa Indonesia: Gambar ini menunjukkan Gunung St. Helens , satu hari sebelum letusan dahsyat.
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Mount St. Helens lava dome growth profile from 1980–1986. Date: 15 August 2007: Source: self-made SVG, based on public domain USGS image : Author: Surachit: Other versions: French version: SVG development
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Mount St. Helens, once the fifth-tallest peak in Washington State, lost about 1,300 feet from its height of 9,677, according to the USGS. The highest part of the crater rim on the southwestern ...
Date/Time Thumbnail Dimensions User Comment; current: 01:53, 7 December 2007: 884 × 569 (104 KB): Murraybuckley {{Information |Description=svg map of the 1980 mount st helens ash fallout, info from usgs map |Source=self-made |Date=6 dec 2007 |Author= Murraybuckley |Permission= all rights released |other_versions= png version [[Image:1980_St._