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There were no lava flows associated with the 1980 eruption. The eruption instead produced a massive eruption column and pyroclastic flows. This eruption lasted for 10 hours. A series of smaller explosive and dome-building eruptions continued from six years.
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Although minor steam explosions may have occurred in 1898, 1903, and 1921, Mount St. Helens gave little or no evidence of being a volcanic hazard for more than a century after its eruption in 1857.
Mount Pinatubo erupted for twelve days in 1991. The first eruption was on June 3 and the climactic eruption took place on June 15.
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for its deadly eruption a long time ago
There were no lava flows associated with the 1980 eruption. The eruption instead produced a massive eruption column and pyroclastic flows. This eruption lasted for 10 hours. A series of smaller explosive and dome-building eruptions continued from six years.
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Although minor steam explosions may have occurred in 1898, 1903, and 1921, Mount St. Helens gave little or no evidence of being a volcanic hazard for more than a century after its eruption in 1857.
1707Little to no damage because Mt. Fuji's first eruption is estimated long before civilization in Japan.Not sure... but my last eruption lasted about 10 seconds
Mount Pinatubo erupted for twelve days in 1991. The first eruption was on June 3 and the climactic eruption took place on June 15.
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11 hours
On March 27,1982 steam exploded. May 18,1982, after an earthquake broke the bulge that was on the north side, it exploded. At 8:32a.m. the earthquake happened and at 8:33 a.m. it was at full blast. So within a minute the explosion happened!
The last Mt Saint Hellens Eruption was relatively short.
If you're talking about mt st Helens then it last erupted on 1st October 2004, but it is most notorious for its catastrophic eruption on 18th May 1980 at 8:32 am. So about 7 years. =)
for about 30-50 minutes