0
Clearly the greatest environmental effect would be the lahar flows which would wash away towns and work sites in their path and bury the area in avalanche debris and mud. Previous debris flows filled river valleys to a depth of hundreds of feet near the volcano, and buried the land surface under many feet of mud and rock sixty miles downstream. A major lahar flow would significantly alter the course of rivers in the area and dump significant amounts of material - much of it toxic to aquatic life - into the ocean.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThe eruption of Mt. Rainier in 1894 is the only confirmed eruption of the volcano within the last 150 years. The reported eruptions since those of 1820-1854 have not been specifically dated and confirmed. The 1894 event was primarily phreatomagmatic in origin. These types of eruptions occur when magma makes contact at shallow depths with water that is in the volcanic Plumbing system. The eruptions generated by these processes generate very fine tephra as the magma is blown into fine pieces with the contact with subglacial water. The event was generated at the central summit vent of Mt. Rainier and is recorded as a V.E.I.-1 by the Smithsonian Institute of Global Volcanism.
Add your answer:
Earn +20 pts
When did mt rainiers famous eruption erupt?
1894. It lasted for several days and or weeks
When was Mount Rainer's last eruption?
1884
When did Rainier last erupt?
Mount Ranier (in the Cascades) last "erupted" in 1894. The major collection of research was for a 1981 book that has gone out of print, so dates of the reported eruption are not generally known. According to the title, more than steam and gas was released : Mount Rainier: The Tephra Eruption of 1894 (OCLC 41684547)
Is Mt Bachelor an extinct volcano?
No. Mount Rainer is dormant. Its last eruption was in 1894, which is recent in geologic terms. There are no signs of an imminent eruption, but there is little doubt that it will erupt again eventually. An eruption of Mount Rainier would pose a very serious threat to the cities of Tacoma and Seattle. Because of this it is considered one of the most dangerous volcanoes in the world.
Did mt rainier erupt in 2010 yet?
No. Mount Ranier has not erupted since 1894.
Mount rainiers last eruption?
December 1894
When did mt rainiers famous eruption erupt?
1894. It lasted for several days and or weeks
What was the date of the eruption of Mount Rainier?
december 1894
When was Mount Rainer's last eruption?
1884
When did Mt Rainier eruption?
Mount Rainier last erupted in 1894.Clarification:The last recorded volcanic eruption of Mt Rainer was between 1820 and 1854, but there have been many witnesses to further volcanic activity and rumblings in 1858, 1870, 1879, 1882 and 1894.
When did Rainier last erupt?
Mount Ranier (in the Cascades) last "erupted" in 1894. The major collection of research was for a 1981 book that has gone out of print, so dates of the reported eruption are not generally known. According to the title, more than steam and gas was released : Mount Rainier: The Tephra Eruption of 1894 (OCLC 41684547)
When was Mount Rainier started to be not active?
Mount Rainier had a number of eruptions during the 1800s. Its last known eruption was in 1894. It is among the most active volcanoes in the Cascade mountain range.
When was mt.rainiers latest eruption?
1894
Is Mt Bachelor an extinct volcano?
No. Mount Rainer is dormant. Its last eruption was in 1894, which is recent in geologic terms. There are no signs of an imminent eruption, but there is little doubt that it will erupt again eventually. An eruption of Mount Rainier would pose a very serious threat to the cities of Tacoma and Seattle. Because of this it is considered one of the most dangerous volcanoes in the world.
When was Mount Vernon High School - New York - created?
Mount Vernon High School - New York - was created in 1894.
Did mt rainier erupt in 2010 yet?
No. Mount Ranier has not erupted since 1894.
How often does the mount rainier erupt?
There is no volcano by the name of Mount Saint Rainier. This question confuses two different volcanoes: Mount St. Helens and Mount Rainier. Mount St. Helens famously unleashed a massive eruption on May 18, 1980, but has produced smaller eruptions as recently as 2008. Mount Rainier last erupted in 1894.
