A massive hot blob is approaching New York city

"A mysterious geological formation deep beneath the Earth’s surface is catching the attention of scientists around the world. It is nicknamed as the “hot blob,” and this vast mass of heated rock lies beneath the Northern Appalachian region. Surprisingly, this appears to be slowly

making its way toward New York City.
The so-called “hot blob” is officially referred to as the Northern Appalachian Anomaly (NAA). It sits about 200 km beneath the Earth’s surface and stretches around 355 km across the northeastern US, including parts of New England. It’s a patch of unusually hot rock moving very slowly under the Earth's crust.
According to a study published in Nature, the hot blob forms when molten rock from the mantle rises into cracks in the Earth’s crust created by ancient rifting. Over time, as it cools, the material begins to sink or "drip" downward, causing ripple-like movements known as mantle waves." msn