An experienced backcountry skier, Malloy was wearing an avalanche beacon, and her skiing partner was able to dig her out and use CPR to resuscitate her, authorities said.
She was transported to a Salt Lake City hospital. Unified police Lt. Justin Hoyal said Sunday that Malloy was expected to recover.
The avalanche was just one of four ski-triggered avalanches reported Saturday.
A "considerable" avalanche rating, used to warn backcountry enthusiasts that human-caused avalanches are likely, was in place Sunday for most of Utah's ranges, including Manti-Skyline, Provo, Salt Lake and Ogden ranges.
A "moderate" rating was issued for the Logan, Uinta and Moab ranges.