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: Boris Rösler

Seismic Study of Singapore Could Guide Urban Construction and Renewable Energy Development

Illustration for the geological model of Singapore and mechanism of the Sembawang hot spring

5 March 2025 — A new seismic study of Singapore could guide urban growth and renewable energy development in the coastal city nation, where 5.6 million residents live within an area of 734 square kilometers. The study, published in Seismological Research Letters, identifies areas with increased risk of ground shaking and… Continue Reading Seismic Study of Singapore Could Guide Urban Construction and Renewable Energy Development

Keeping America Safe

SSA-logo-graphic-teal

A joint statement by SSA President Heather DeShon and President-Elect Susan Bilek 15 February 2025 — The recent termination of thousands of federal employees, including employees within the U.S. Department of the Interior, Department of Energy and Department of Commerce, will undermine the critical scientific expertise required to keep the… Continue Reading Keeping America Safe

Scientists Use Distant Sensor to Monitor American Samoa Earthquake Swarm

Map of Manuʻa Islands with Raspberry Shake locations (red triangles) and villages (black squares) contributing felt reports. The swarm origin is localized to where the yellow and red rings 664 intersect: directly under, or offshore either north or south of, Taʻū Island. | Yoon et al. (2025) TSR

14 February 2025 — In late July to October 2022, residents of the Manu’a Islands in American Samoa felt the earth shake several times a day, raising concerns of an imminent volcanic eruption or tsunami. An earthquake catalog for the area turned up nothing, because the islands lacked a seismic… Continue Reading Scientists Use Distant Sensor to Monitor American Samoa Earthquake Swarm

2025 SSA Board of Directors Election Results

February 13—The Seismological Society of America held its Board of Directors election on Friday, 3 January 2025. The following members were elected to a three-year term beginning 14 April 2025 at the SSA Annual Meeting in Baltimore, Maryland.   Ashly Cabas, Associate Professor, Department of Civil, Construction, and Environmental Engineering… Continue Reading 2025 SSA Board of Directors Election Results

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 At Work: Wilnelly Ventura-Valentín