A recent study cautions that the Karoo, a potential target for shale gas exploration, might not be as seismologically calm as it appears.
tomography
Posted inNews
Scientists Find Thousands of Cubic Kilometers of Magma Hiding Beneath Tuscany
We already know what’s Under the Tuscan Sun. Now, a technique called ambient noise tomography has allowed researchers to see deep under the Tuscan crust.
Posted inNews
What’s Below the Great Salt Lake? More Water
Pools of fresh water and salt water not far below the lake bed help explain some of the lake’s curious features, including mineral mounds and reed islands.
Posted inResearch Spotlights
Improved Imaging Offers New Insight into Mount Etna
Anisotropic tomography provides a more complete picture of the Sicilian volcano’s inner workings.
Posted inEditors' Highlights
A Strong Pacific Plate Bends Under the Hawaiian Volcanic Chain
Two seismic studies reveal the volcanic loads and resulting flexure of the Pacific plate at the Hawaiian Ridge and, surprisingly, show no magmatic underplating.
Posted inEditors' Highlights
Rift-to-Ridge: Mid-Atlantic Ridge Segments Imprinted During Rifting
A new seismic study shows that magmatism along the eastern North American rift margin was segmented, and that rift discontinuities influence formation of fracture zones along the Mid-Atlantic Ridge.
Posted inEditors' Highlights
Can Anelastic Attenuation of Oceanic Mantle be Reliably Measured?
A new study demonstrates that robust anelastic attenuation measurements can be made across ocean bottom seismic arrays at different locations using surface wave array analysis.
Posted inEditors' Highlights
Western US Adjoint Tomography Reproduces Waveform Complexity
Adjoint tomography employing 3D wavefield simulations for 72 well recorded regional earthquakes in the western U.S. yields spectacular improvements to waveform fits.
Posted inEditors' Highlights
Probabilistic Tomography Delivers Answers to Basic Questions
Fundamental questions on subsurface properties are robustly addressed through probabilistic assessment of multiple forward/inverse modelling formalisms using interrogation theory.
Posted inEditors' Highlights
Adjoint Tomography Illuminates Hikurangi Margin Complexity
Waveform inversion of regional earthquakes reveals velocity anomalies interpreted as subducting seamounts that control an enigmatic segmentation in plate coupling along the Hikurangi margin.