They named it Jones County after John Paul Jones, the early American Naval hero who rose from humble Scottish origin to military success during the American Revolution. Ellisville, the county seat, was named for Powhatan Ellis, a member of the Mississippi Legislature who claimed to be a direct descendant of Pocahontas.
An avalanche occurs when the stress (from gravity) trying to pull the snow downhill exceeds the strength (from bonds between snow grains) of the snow cover. Four conditions must be present for an avalanche to occur: 1  a steep slope. 2  a snow cover. 3  a weak layer in the snow cover. 4  a trigger.
Three things that happen to the Earth's crust when earthquakes  occur include, a release in energy, plates sliding past one  another, and fractures developing in the crust. â¦ Not all of these  things happen at the same time and which occurs depends on the  strength of the earthquake. 1 person found this useful.