For the past couple of weeks, Google's local rankings in the local pack and Google Maps results have
been very volatile. Heck, even the past few days, the local SEO community is chatting up a storm on the changes. But Danny Sullivan of Google said on
Twitter there is "no major updates or anything like that" in the local search algorithm.
He went on to say that this doesn't mean nothing is happening, he said "so there's nothing in particular we know of that should be doing this. Which isn't to say it's not happening." Give Google examples he said, "It would be useful if people have any recent examples. If they see it over the past day or two or so, or see it forward."