A 220-mile-wide blob of hot rock is moving underground toward New York. Scientists call it the Northern Appalachian Anomaly. It sits 125 miles deep and drifts southwest at 12 miles per million years. That puts it on track to reach NYC in 10 to 15 million years. https://www.msn.com/en-us/weather/topstories/massive-mysterious-hot-blob-beneath-eastern-us-is-moving-toward-new-york-puzzling-scientists/ar-AA1JTCD0
It formed 80 million years ago. The blob emerged when Greenland and Canada split. It rises from the mantle, fills cracks, then sinks. That motion lifts the Appalachian Mountains.
Tom Gernon says it acts like a jack. “Heat at the base of a continent can weaken and remove part of its dense root, making the continent lighter and more buoyant,” he said. That’s why the Appalachians haven’t flattened.
Another blob sits under Greenland. Both were triggered by ancient rifting. Scientists used seismic tomography to track the movement, basically a CT scan of Earth.
No eruptions. No earthquakes. But the blob might explain why diamonds surface in parts of the region. It’s slow, deep, and still reshaping the land.
The East Coast isn’t still. It’s drifting. The mantle moves. The crust responds. The blob is part of that chain.
New York won’t notice. But it’s coming. Quiet. Steady. Unstoppable.