Mt St Helens in Washington gave off steam and debris a few years ago but I don't think that's called an eruption so I would say May 18th, 1980 at Mt St Helens. Hawaii gets lava flow.
The last major eruption in the US was the 1980 eruption of Mount St. Helens in Washington. This eruption resulted in significant damage to the surrounding area and was one of the most destructive volcanic events in US history.
Mount Pelรฉe's last major eruption occurred in 1902, resulting in the destruction of the town of Saint-Pierre in Martinique and the loss of around 30,000 lives. Since then, there have been smaller eruptions and seismic activity, but no major eruptions.
The last eruption of Mount Hibok-Hibok in the Philippines occurred in 1953. This eruption resulted in significant loss of life and destruction in the area surrounding the volcano. Since then, there have been no recorded eruptions.
Laki is no longer considered an active volcano. Its last major eruption was in 1783-1784. However, the area is still monitored for potential volcanic activity.
The last major eruption of Mt Etna occurred on February 16, 2021. This eruption created a spectacular display of lava fountains, ash emissions, and lava flows, but did not cause significant damage or fatalities. The eruption did result in the temporary closure of the Catania Airport due to ashfall.
The first known eruption of Mount Shasta occurred around 593,000 years ago.
The last major eruption of mt.vesuvius was in 1994.
1944 it was the last major eruption from vesuvius
The last major eruption was in the late 1780s; the effects of the eruption were viewed by members of the Lewis and Clark Expedition in 1805.
13333234532234
The last major eruption was in the late 1780s; the effects of the eruption were viewed by members of the Lewis and Clark Expedition in 1805.
On 15th August 2010 in 2011's point of view
Tungurahua has had volcanic activity since 1999, it is still ongoing, the last major eruption was on 16 August 2006.
The last major eruption happened in March 1944
the last major eruption was in December 2000
The last eruption of Mt. Fuji was in 1707-1708. The eruption released cinder, ash, "bombs", and mud but strangely no lava. The eruption destroyed 72 homes and 2 temples but there were oddly no fatalities due to the eruption.
2008 Ruapehu
about 36