Ground Motion Prediction Equations (GMPEs): Empirical relationships used to estimate seismic shaking intensity based on factors such as earthquake magnitude, distance from the source, and local ...

They occur when one natural event alters the landscape in ways that lead to future hazards. A landslide triggered by a storm might clog a river, leading to downstream flooding months or years later.

NASA and Northrop Grumman successfully tested the most powerful segmented solid rocket motor ever created at Promontory Point on Thursday. It will eventually power missions to the moon and beyond.

“The last several days have been an opportunity to meet really smart people from so many different disciplines and different regions,” Lori Dengler writes this week.

Hurricane Helene lasted only a few days in September 2024, but it altered the landscape of the Southeastern U.S. in ways that will affect the hazards residents face far into the future.

The fall of the House of Assad, while a complex and multifaceted event, has further exacerbated Iran’s vulnerabilities, indicating that the regional landscape is more favorable for Israel than ...