We congratulate Dr. Tolu Olugboji for being selected a Fellow of the Next Einstein Forum, which recognises Africa’s best young scientists and technologists. In March, Tolu presented his research in Kilagi, Rwanda. Check out the photos from the ceremony, below.
Congratulations to Tolu! Read More »
Graduate students at the University of Maryland Seismology Lab sprung into action following the M4.1 earthquake that struck Dover, Delaware on November 30, 2017. The very next day, they were out in the field, deploying seismometers that would be recording aftershocks for the next 6 weeks. Thank you Erin, Chao, Phillip, Karen, Pete, and Quancheng
Quaking the Delaware Read More »
Conversions of shear waves (S) to compressional waves (P), often analyzed as Sp receiver functions, are useful for studying upper mantle layering, and have been used to map upper mantle seismic impedance interfaces in various tectonic settings. Recently, common conversion point stacking of Sp receiver functions has revealed variations of lithospheric thickness across short horizontal
Things to consider when interpreting Sp receiver functions… Read More »
It is well known, at least among tomographers, that our images of the Earth’s interior are washed out. Lateral variations in seismic velocities are likely to be weaker in our models than in the actual Earth due to explicit and implicit regularization needed to obtain a solution to our mixed-determined inverse problems. As a result,
About those amplitudes… Read More »
The EarthScope project has been described as the Apollo program of the solid Earth community. It has enabled an unprecedented investment in seismic instrumentation, and the creation of a uniform and high-quality network covering the United States. Data collected by this network transformed our ability to image the continent and what lies beneath it. In
Improvement in P-wave tomography due to EarthScope Read More »
Sutton Chiorini, who has been an undergraduate researcher in our lab for three years, has graduated and started a Master’s program at Miami University of Ohio. We wish her the best of luck in her future studies and research and will miss her engaging presence, excitement, and (s)warmth!
Congratulations and Best of Luck to Sutton Chiorini! Read More »
This summer, we had the pleasure of hosting two summer undergraduate interns: Anant Hariharan from Cornell, and Brittany Washington from Rugters, Newark. While Anant worked on analyzing the lengthscales of heterogeneity in mantle models constructed from long and short period data, Brittany identified to sounds of whales, ice-quakes, and scraping of ice-bergs. You can read
Pair of IRIS summer interns joins the group Read More »
Using depth-dependent clustering analysis of global Vs and Vp tomographic models, we have constructed a new reference model for LLSVP shape and volume. We obtain new, much larger estimates of the volume/mass occupied by LLSVPs—8.0 % ±0.9 (μ ± 1σ) of whole mantle volume and 9.1 % ±1.0 (μ ± 1σ) of whole mantle mass. We also
Reference Model of LLSVP Morphology Read More »
This month, Anthony Mautino obtained his MS in Geology with a thesis about characterizing spherical Couette flows with acoustic normal mode splittings. Here, we are gathered to celebrate Anthony’s achievement, as well as bid farewell to Andrew Eagon who was a summer intern in the lab from Wisconsin, Whitewater.
Congratulations to Anthony Mautino Read More »
REM-3D is a project funded by the National Science Foundation and carried out by Raj Moulik, Ved Lekic, Barbara Romanowicz, and Adam Dziewonski. If you have questions, please do not hesitate to contact us. You might find the answer you are looking for in our new FAQ section. The aim of the project is to develop a three-dimensional
3D Reference Earth Model Read More »
