Browse Highlights

Highlights include enriched and related content of notable journal articles presented on Eos org AGU org AGU On Demand and in AGU journals

Revising the Displacement History of New Zealand’s Alpine Fault

Terri Cook, Freelance Writer

From Research Spotlights— A reinterpretation of structural and paleomagnetic data suggests that New Zealand’s Alpine Fault accommodates a far greater percentage of geologically recent plate motion than previously thought. In New Zealand, the boundary between the Pacific and Australian plates.... more

A New Tool to Better Forecast Volcanic Unrest

From Research Spotlights— In a retrospective study of volcanic unrest at Indonesia's Kawah Ijen, a new model was able to pick up on the rising probability of eruption 2 months before authorities were aware of the risk.    On 27 September 2014, Japan's Mount Ontake erupted and killed 57 people..... more

Japan’s Volcanic History, Hidden Under the Sea

From Research Spotlights— Scientists investigate marine tephra layers for clues into Japan’s volcanic past. At the junction of four tectonic plates in the Pacific Ring of Fire, Japan has more than 100 active volcanoes—more than almost any other country in the world.  Although terrestrial records.... more

Becoming Habitable in the Habitable Zone

From Research Spotlights— Day to day, plate tectonics may seem to have little to do with Earth’s habitability. However, over time, interactions between our planet’s climate, mantle, and core have created a suitable home for complex life. In a new review paper, Foley and Driscoll suggest that.... more

The Role of Water in Earth's Tectonic Plumbing Systems

Kate Wheeling, Freelance Writer

When tectonic plates collide and separate, fractures spread across Earth's crust. Beneath the planet surface, these fractures act like a natural plumbing system, carrying water down from the surface. The hydrogeological characteristics of these fault zones—the properties that affect how groundwater.... more

Which Geodynamo Models Will Work Best on Next-Gen Computers?

Terri Cook, Freelance Writer

Scientists have long sought to understand the origin and development of Earth’s geomagnetic field, which is continually generated by convection in the Earth’s conductive liquid outer core. Numerical modeling, so-called geodynamo simulations, has played an important role in this quest, but the extremely.... more

Variable Mantle Lays Below Ancient Pieces of Earth’s Crust

Cody Sullivan, Writer Intern

When people traverse North America’s Great Plains, they tread atop ancient continental blocks dating back billions of years. This old part of the continent is also very stable and is made up of three distinct cratons: the Wyoming, Superior, and Medicine Hat cratons, all of which are surrounded by slightly.... more

Characterizing the Fault Beneath the Marmara Sea

Kate Wheeling, Freelance Writer

In 1999, an eastern portion of a 150-kilometer-long segment of the North Anatolian Fault ruptured beneath Turkey's Marmara Sea. The result was the Izmit earthquake, a 7.6 magnitude quake that struck Turkey, leveling several cities and towns and taking thousands of lives. Since then, scientists have.... more

Alaska’s Semidi Segment Could Unleash a Devastating Tsunami

Terri Cook, Freelance Writer

Of all the segments along the Alaskan convergent margin, the Semidi segment has a geometry that is most likely to direct a powerful tsunami toward the United States’ West Coast. Centrally located along the Alaska Peninsula southwest of Kodiak Island, the Semidi last generated a great tsunami in 1788..... more