North America’s geological core has persisted for ... By analyzing the waves, scientists can reverse engineer a map of Earth’s innards, Hua says. And the researchers sought to conduct this ...

This map shows seismic speed in the Earth’s crust at 200 kilometers depth across the continental United States and portions of Central America and Canada. The North American craton (outlined in ...

The discovery was possible thanks to a wider project led by Hua to map what lies beneath North America using a high-resolution seismic imaging technique called "full-waveform inversion." ...

Locate them using a large map. Share any holiday photographs from pupils who have visited countries in North America such as Disney World, Florida, US and add them to a map along with other images.