A formidable heat dome is building across the central United States, as it often does this time of year. That brings hot, humid and dry weather to the Central Plains. To the north of the dome, storm ...

Scientists tracking the Pacific’s most volatile margins are watching a familiar pattern sharpen into something more urgent, as clusters of earthquakes and restless volcanoes hint at shifting stresses ...

Many of the world’s biggest earthquakes, volcanic eruptions and tsunamis occur along a chain of seismologically active regions that encircle the Pacific Ocean. By Victoria Kim Hundreds of millions of ...