This was suppose to be the lead in to earthquake Sanvu.
I don't think that is going to happen now. …
The words "Sting Jet" occurs quite regularly in uk.sci.weather.
The thing is an upper level phenomenon referring to the various Jet Streams and its behaviour. But in the Antarctic, one can see the same sort of thing as a black line seemingly injected over the continent. It looks likely to be tornadoes in the train not an earthquake.
Or maybe it's another tropical storm.
The states west of the Great Lakes seem to have been harbouring an extraordinarily large number of tornadoes for an extraordinarily long series of spells.
Super- quakes signal their intention by a similar geophysical presence.
Maybe super-cells do too.