This is Sorensen's first big editorial cartooning prize (she was a finalist for this award two years ago); it is the first Herblock to go to a female cartoonist, and it is the third Herblock in a row to go to an alt-weekly type cartoonist (Matt Bors, 2012; Dan Perkins, 2013). Congrats to her.
Winner gets a tax free $15K and a silver platter. It is named after the great Herblock himself, and is run by the massively wealthy foundation established in his name. The award started in 2006.