: A massive fault line 80 miles off the Pacific Northwest coast.

: Pressure has been building for over 300 years. A slip could trigger a mega-earthquake and a devastating tsunami. Episode 2: Atlantic Coast Killer Focus : The Atlantic island of La Palma.

: Scientists explore the potential for a massive landslide that could send a killer tsunami across the ocean toward the U.S. East Coast. Episode 3: Volcano Apocalypse

(2020) is a National Geographic docuseries that uses high-tech sensors and advanced geological scanning to "see" deep into the planet's interior, revealing hidden dangers like mega-earthquakes, tsunamis, and volcanic eruptions. Series Overview

X-Ray Earth - National Geographic for everyone in everywhere

: The massive volcano system beneath Yellowstone National Park .