About a week ago.
Its a “global phenomenon” going back some are claiming as far as 2019 or earlier.
The fact that the media is interested in and focuses on one location at a time to boost ratings or to misdirect civilians trying to study the subject is not the same as it happening in one place or only for a short time.
The recent hysterical silliness on the east coast was not new nor limited to a couple of weeks. Only the need to try to get us all to focus on one place at one time was new.