A new tomographic method based on correlations of seemingly chaotic earthquake coda waves yields otherwise unobservable arrivals, thus greatly improving illumination of the deep Earth.
Tomography
Posted inEditors' Vox
Age and Speed Matter in the Formation of New Oceanic Crust
A synthesis of data from studies in different ocean basins reveals that the characteristics of oceanic crust are shaped by age and spreading rate.
Posted inNews
Secrets from the New Madrid Seismic Zone’s Quaking Past
High-resolution lidar topography reveals a long history of ancient earthquakes.
Posted inResearch Spotlights
Seismological Models Are Biased, but Scientists Have a Solution
Many seismic wave models are based on an erroneous assumption about the Earth's interior. A new technique corrects this by eliminating false signals produced by models.
Posted inNews
Adam M. Dziewonski (1936–2016)
Adam Dziewonski, a towering figure in solid Earth geophysics and a pioneer of global seismic tomography, passed away on 1 March 2016. He was 79.
Posted inResearch Spotlights
Massive Carbon Dioxide Stores Beneath Mammoth Mountain
Gas in rocky pores beneath the surface of California's Mammoth Mountain could fuel dangerous carbon dioxide emissions for the next 28 to 1100 years.
Posted inResearch Spotlights
A Magmatic Seafloor Source at an Ultraslow-Spreading Ridge
An ultraslow-spreading stretch of the Southwest Indian Ridge is thicker than expected: both tectonic and volcanic processes may be feeding the growing seafloor there.
Posted inFeatures
What Lies Deep in the Mantle Below?
For decades, scientists have probed Earth's remote mantle by analyzing how seismic waves of distant earthquakes pass through it. But we are still challenged by the technique's limitations.
Posted inResearch Spotlights
Seismic Wave Modeling Goes Local
A new technique brings accurate models of traveling seismic waves to a regional scale.