A 4.5 magnitude aftershock jolted Virginia and the region around the U.S. capital early Thursday, rattling residents recovering from a rare east coast earthquake two days earlier.

The epicenter of the tremor which struck at 1:07 am (0507 GMT) was just eight kilometers (five miles) south of Mineral, Virginia, the epicenter of Tuesday's 5.8 magnitude quake, the National Earthquake Information Center reported.

In winemaking, a hot, dry summer is part of the stuff that dream vintages are made of.

And with the Washington area baking in record-breaking temperatures this summer, winemakers in the little-known vineyards of Maryland and Virginia think this could be the year that puts them on the map.