did it cause any casualties when it erupted?
No, the threat potential from Belknap is low
Belknap Crater
the threat potential from Belknap is "Low/Very Low"
what is belknap crater? Is a shield volcano where is it located? Located in Linn County has it ever erupted? It had four Holocene eruptive periods confirmed by geological evidence has it been the habitat for any animal? Ground squirrels, mule deer where else can we find the latter? Western North America what does it feed on? Forb vegetation, small amounts of grass, and where available, tree or shrub fruits how does it behave? Mule deer readily adapt to agricultural products and landscape plantings. In the Sierra Nevada range, mule deer depend on the lichen "Bryoria fremontii" as a winter food source which country does the volcano belong to? U.S.
wiki:7510673
Belknap Crater [SEP] Recent activity and potential hazards
At the south of Sisters Reach, there is a postglacial, basalt lava flow that lies on the eastern flank of Sitkum Butte (a cone that is older than this lava flow). The recent eruptive activity at Belknap Crater means that it is one of the youngest mafic volcanoes in the Oregon Cascades. There are about 6,500 people living within of Belknap Crater, with a population of about 362,000 within . However, most eruption hazards from basaltic volcanoes are generally restricted to within of the vent, with some exceptions. According to the Volcano Hazards Program of the United States Geological Survey's Cascades Volcano Observatory, the threat potential from Belknap is "Low/Very Low".