From National Geographic:
Herculaneum Roger Ressmeyer
Pompeii and Herculaneum were two ancient Italian cities that were not slowly buried beneath the sands of time. They were instead entombed beneath tons of rock and ash blasted out of nearby Mount Vesuvius in A.D. 79. Many inhabitants fled toward the Mediterranean seafront, as Dr. Sara Bisel poignantly discovered when she excavated Herculaneum in the 1980s. She found human beings frozen in positions of terror, though turned to ash, and skeletons still garbed in jewelry and wrapped protectively around the bones of their children.