"As instruments of global climatic change, we humans now rival such cataclysmic events as supercontinent breakups and …"

"The crust and mantle churn together on both the yearly scale of incremental plate motions and the epochs of supercont…"

"Early in the last century, the most powerful earthquakes ever to strike the stable heart of the continent rattled the…"

"As James Lal Penick has documented in his The New Madrid Earthquakes... These "sand blows" erupted with a loud bang a…"

"Paleoseismology... is science by backhoe. Researchers dig deep, straight-walled ditches and search up and down for si…"

"Because these earthquakes strike in the strong, unfractured rock of plate interiors, their tremors travel faster than…"

"Like a cracked china cup, the continental crust is still fragile where it has been damaged in the past."

"Oceanographer Edward Baker and his colleagues... came across a startling anomaly. ...something peculiar: a football-s…"

"According to Woese's evolutionary tree, the most primary of the present-day bacteria lie within a group called the ar…"

"Don Anderson... realized that since heat conducts only half as quickly through continental crust as through oceanic c…"