At Work: Hannah Mark

Hannah Mark holding a magnetometer onboard a scientific ship

16 June 2025—If plate tectonics are canon in the Earth sciences, the details of what makes up a “plate” are surprisingly tricky, says Hannah Mark. “The definition of a plate is a section of the outermost solid layer of the Earth that behaves as a rigid body, and deforms only … Continue Reading »

At Work: Rebecca Colquhoun

Rebecca Colquhoun at the beach in blue jacket

11 April 2025—Rebecca Colquhoun liked math and science in school but wasn’t sure what kind of career that might launch. Should they go into physics? Chemistry? Computer science? “I was looking for something that was sort of a mixture, so I could put off deciding for a while longer,” Colquhoun … Continue Reading »

At Work: Boris Rösler

Boris Rösler

10 March 2025—“Moment tensors are a model to describe earthquake sources based on forces acting at the seismic source,” explains Boris Rösler. “In the 1960s, it was shown that these forces generate a seismic wavefield equivalent to slip on a fault. We can thus describe the geologic process of an … Continue Reading »

At Work: Wilnelly Ventura-Valentín

Wilnelly Ventura-Valentín

10 February 2025—Wilnelly Ventura-Valentín’s research as a Ph.D. student at Miami University in Ohio focuses on earthquake swarms, the bursts of seismic activity—small earthquakes all about the same magnitude—that start abruptly and end abruptly. “We don’t know a lot about what triggers this activity,” she explains, “and because we don’t … Continue Reading »