Natural and manmade explosive events occurring on or below the Earth’s surface can be measured remotely in different ways and different places from the ionosphere.
Earth’s interior
Posted inOpinions
Looking Down to Reach to the Stars
Discoveries deep beneath Earth’s surface drive planetary exploration, and discoveries on other planets inform our understanding of the world beneath our feet.
Posted inResearch Spotlights
Explaining the Genesis of Superdeep Diamonds
Real-time tracking during diamond anvil cell experiments indicates reaction rates may control the unusual depth distribution of the extremely rare diamonds that form deep within Earth’s mantle.
Posted inEditors' Highlights
Seismic Anisotropy Due to a Compositionally Layered Mantle
Investigating the role of layered rocks and compositional banding on mineral scale in generating seismic anisotropy in the mantle.
Posted inFeatures
Isotope Geochemists Glimpse Earth’s Impenetrable Interior
Painstaking measurements of isotopes and their relative abundance in rocks have illuminated the hidden inner Earth and our planet’s origins and shadowy past for much of the preceding century.
Posted inFeatures
The Unsolved Mystery of the Earth Blobs
Researchers peering into Earth’s interior found two continent-sized structures that upend our picture of the mantle. What could their existence mean for us back on Earth’s surface?
Posted inAGU News
Collaboration Reveals What’s Beneath the Surface
How do scientists look underground? Answering questions about Earth’s interior requires an attack from many angles.
Posted inResearch Spotlights
Regional Metamorphism Occurs Before Continents Collide
Evidence from collision zones suggests that the high temperatures that create regional zones of metamorphic minerals occur in wide, hot back arcs prior to continental collision deformation.
Posted inAGU News
Yoshio Fukao Receives 2018 Inge Lehmann Medal
Yoshio Fukao was awarded the 2018 Inge Lehmann Medal at the AGU Fall Meeting Honors Ceremony, held on 12 December 2018 in Washington, D. C. The medal is for “contributions to the understanding of the structure, composition, and dynamics of the Earth’s mantle and core.”
Posted inScience Updates
Taking Magnetotelluric Data out of the Drawer
Magnetic and electric field measurements at Earth’s surface provide information on Earth’s interior and on space weather. An open-source central repository of these data has received a major update.