  Conditions for regolith landslides to occur on spinning, gravitating
spheroidal asteroids and their aftermath are studied. These conditions are
developed by application of classical granular mechanics stability analysis to
the asteroid environment. As part of our study we determine how slopes evolve
across the surface of these bodies as a function of spin rate, the dynamical
fate of material that exceeds the angle of repose, and an analysis of how the
shape of the body may be modified based on these results. We find specific
characteristics for body surfaces and shapes when spun near the surface
disruption limit and develop what their observable implications are. The small,
oblate and rapidly spinning asteroids such as 1999 KW4 Alpha and 2008 EV5
exhibit some of these observable traits. The detailed mechanisms outlined here
can also provide insight and constraints on the recently observed active
asteroids such as P/2013 P5, and the creation of asteroidal meteor streams.
