IRIS Statement on Racism in Geoscience

We at IRIS join our colleagues from across the country and around the globe in unequivocally denouncing racism. BLACK LIVES MATTER. We also know that racism is persistent in STEM and that there are systemic inequalities in academia and particularly in the geosciences. Continue Reading

Reduction in seismic noise because of changes in human activity

Researchers who study Earth’s movement are seeing a drop in seismic noise as a result of transport networks and other human activities being shut down. Continue Reading

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

UPCOMING EVENTS

Mar 9-10 Marine Seismology Symposium
Maritime Conference Center, Linthicum Heights, Maryland,
Aug 10-17 2020 Distributed Acoustic Sensing Virtual Workshop and Tutorial
Virtual
Oct 10 IRIS/SSA Distinguished Lectureship Series
Southwestern Oregon Community College Virtual Event
Earthquake Resources

NEW ANIMATION! Bomb or Earthquake?

How do seismologists tell the difference between an explosion and an earthquake, when both shake the ground? Find out in this new animation!

New Animation! Cascades Subduction Zone—What can the landscape tell us?

This animation describes the geographic provinces of the Pacific Northwest, including the subducting plate, the subduction boundary, the Coast Range, the lowlands, and the Cascades mountain range.

Tearing an arc apart—insights from the northern Taupo Volcanic Zone

Tearing an arc apart—insights from the northern Taupo Volcanic Zone

Researchers used seismic waves in the Bay of Plenty to create detailed images of the crust and mantle spanning the underwater northern section of the Taupo Volcanic Zone. By peering into the subsurface, they found evidence of a positive feedback relationship between magmatic intrusion and crustal extension.
Distant quakes trigger undersea landslides in Gulf of Mexico

Distant quakes trigger undersea landslides in Gulf of Mexico

Massive submarine landslides are often shaken loose if a large earthquake strikes nearby. However, triggers for smaller landslides are poorly understood. In a recent paper Dr. Wenyuan Fan and his colleagues, discovered 85 previously unknown submarine landslides in the Gulf of Mexico by analyzing 8 years of seismic data and extracting characteristic seismic signals of continental slope careening downhill.
Researchers Develop New Explanation for Destructive Earthquake Vibrations

Researchers Develop New Explanation for Destructive Earthquake Vibrations

Brown University researchers propose that rocks colliding inside a fault zone as an earthquake happens are the main generators of high-frequency vibrations.