IRIS Station Monitor App now available!

Explore earthquakes near you or around the world using the new IRIS Station Monitor app! Available for both Android and iPhone! Continue Reading

GSN seismic station recorded the sounds of Hurricane Maria

Newly installed infrasound sensors at a GSN station on Puerto Rico recorded the passage of Hurricane Maria. Continue Reading

USArray in the news!

USArray Transportable Array science featured in exciting Accuweather video special feature! Continue Reading


Feb 7 IRIS/SSA Distinguished Lectureship Series OMSI Science Pub, McMenamins Mission Theater (Portland,Oregon)
Feb 16 Explore Seismology during AAAS Family Science Days Marriott Wardman Park Hotel
Earthquake Resources

New Animation! “What is the Moho?”

The Mohorovicic Discontinuity, commonly called the “Moho” is recognized as the boundary zone between Earth's crust and the mantle. Learn more about what it is and how it was discovered!

3 new Spanish language animations!

Grafico Tiempo de Viaje—¿A qué distancia estaba ese terremoto?; Cambiando la magnitud de un Terremoto ¿Por qué los sismólogos hacen eso?; Sismogramas de 3 componentes—¿Cómo capturamos el movimiento de un terremoto?

Quaking beneath the ice

Quaking beneath the ice

The geology of East Antarctica lies hidden below many kilometers of ice, and presents a fascinating and complex problem for geologists. Historically, very few earthquakes have been recorded in Antarctica but data from a new seismic array has allowed scientists to detect earthquakes below the ice, and their results directly contradict the notion that Antarctica is seismically and tectonically inactive.
Test, Collapse, Swarm

Test, Collapse, Swarm

In 2017, the government of the North Korea detonated a hydrogen bomb. In the following days, several additional seismic events were recorded. Using seismic data from the IRIS DMC and other networks, researchers were able to determine locations and probable causes for these seismic events.
Antarctic Ice Shelf ‘Sings’

Antarctic Ice Shelf ‘Sings’

According to research led by Colorado State University, winds blowing across snow dunes on Antarctica’s Ross Ice Shelf cause the massive ice slab’s surface to vibrate, producing a near-constant set of seismic tones that could potentially be used to monitor changes in the ice shelf.