Whether it was an earthquake or tremor, the success of UKIP at the European election has sent a shockwave through the political establishment.
UKIP celebrates after stunning election success>>>
An understandably euphoric Nigel Farage has now set his sights on propelling "the people's army" into Westminster and breaking the mould. In one of his less guarded moments, he said that the scale of his party's victory meant "anything was possible" and while UKIP would never form a government, it just might hold the balance of power after the election.
So, how realistic is it that UKIP will have MPs in Westminster? Mr Farage says the party will focus its efforts on a string of constituencies where it has already secured a power base. Ironically, this mimics the successful campaign strategy adopted by the Liberal Democrats in places like the west country.
Several Kent seats will be among the targets. Among them will be the two Thanet seats, Folkestone and Hythe and Sittingbourne and Sheppey. Or as Nigel Farage put it: "Yes, we do like to be beside the seaside."
Of course, the main problem is that, unlike the European election, MPs are voted in on the first-past-the-post system.
Still, in some of these seats UKIP has the benefit of a well-organised and enthusiastic base of activists and councillors, notably Thanet where UKIP now boasts seven county councillors out of the eight that represent the area. These things matter in campaigns where the margin between winning and losing will be tight.
Also on the plus side is that in most of these areas, UKIP did extremely well in terms of their share of the vote. In Thanet, the party took 46% of the vote compared to 24% in 2009. Many now expect Nigel Farage himself will contest Thanet South, where the Conservatives have yet to adopt a candidate following Laura Sandys' decision to stand down. That may cut both ways, of course - the leader is loved and loathed in equal measure - but on balance will be seen as an advantage.
UKIP's contention that it takes away as many votes from Labour as it does from the Conservatives has something in it but can it siphon away enough of their supporters to come through the middle?
Mid-term elections always see the government taking a kicking in the form of protest votes and, important though they are, UKIP will have campaign on more than just immigration and withdrawing from Europe at the general election. They will also be under even greater scrutiny by their opponents..
Still, if ever there was a time for UKIP to make a parliamentary breakthrough, this is surely is it. The party's European success - albeit on a low turnout - is important because voters will now be less likely to think that putting a cross against "the people's army" is a waste.
Traditionally, the political map of Kent has been red and blue - and more often just blue. UKIP's success this week and at the county council election means the map is developing a distinctly purple tinge.
The European election results have left the main parties wondering what they can do to counter the threat of UKIP next May.
So far, they seem to think that if they can get their message across - or "deliver" their message - on key issues like immigration and the promise of a referendum, UKIP will be neutered. I am not so sure. Both Labour, the Lib Dems and the Conservatives have been hammering their key messages on these issues in the weeks running up to polling day.
It is not that they failed to spell out in detail what their position was - it was that voters did not believe them. Retreating to the same strategy but saying it much louder will not be enough.
Is Labour still suffering from Southern Discomfort? The party's share of the vote went up by more than 6% to 14.6% but fell way short of the Conservative share, which fell to 31%.
With a general election a year away, they will need to improve on that significantly if they are to have any chance of winning back any of the seats they lost in Kent in 2010. The message from party chiefs is that they know there is "more to do" but they can get there. There is nothing wrong with an optimistic outlook but these results make it less, rather than more likely that they are in a good position to win. (Some Conservatives were quietly pleased with the way their vote held up reasonably well).
In the key target seats of Dover and Chatham and Aylesford, they need a swing of 5.2% and 6.9% respectively. With national polls giving them only a narrow lead, that is a big hill to climb.