There is a hotspot track cross-cutting the New Madrid Fault Lines! And it may explain the upstick in recent intraplate earthquakes across the eastern United States! At present, most hotspot tracks are observed on oceanic or thin continental lithosphere. For old, thick continental lithosphere, such as the eastern United States, hotspot tracks are mainly inferred from … Continue reading Scientists Discover Hotspot Track Cross-Cutting the New Madrid Seismic Zone