The IRIS Earth Model Collaboration (EMC) Horizontal Slice Viewer.

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 7.1 - Off Coast of New Zealand

Key Announcements

IRIS Board of Directors Appoints a Nominations Committee for 2016 Elections
Read More

Update from IRIS President Bob Detrick – Spring 2016
Read More

IRIS Issues Strategic Plan
Read More

Donate to the David Simpson Fund for Innovation
Read More


Report on the 2016 IRIS Workshop is Now Available
Whether you were able to participate in person or not, download a summary of the 2016 IRIS Workshop prepared by the Science Planning Committee and the leaders of the plenary sessions and the Special Interest Groups.
Read More

IRIS Staff Answers Questions on AskScience’s “Ask Me Anything”
IRIS staff members Wendy Bohon and Danielle Sumy responded to dozens of interesting questions about earthquakes and seismology during a "Ask Me Anything" session on Reddit's AskScience.
Read More

IRIS to Conduct Wavefields Demonstration Community Experiment
This community experiment will take place in northern Oklahoma this summer and will make use of cutting-edge three-component nodal-type sensors.
Read More

New Video on the Himalaya and the 2015 Nepal Earthquake
IRIS has created a short video that discusses the evolution of the Himalaya and the Nepal earthquake that occurred on April 25, 2015.
Read More

Remembering Adam Dziewonski
IRIS and the seismological community mourn the loss of geophysicist Adam Dziewonski who passed away on March 1 at age 79.
Read More

Results Explain Mystery of the Bighorn Mountains
Data from the EarthScope-funded Bighorn Arch Seismic Experiment, which was acquired by several hundred sensors across Wyoming and Montana in 2010, sheds light on the formation of this puzzling feature.
Read More

Check Out the Special Event Web Page on the N. Korean Nuclear Test
More information will be added to the web page as it becomes available.
Read More

View Past IRIS News

Recent Major EarthquakesRSS

September 1, 2016
Off Coast of New Zealand - 7.1

August 29, 2016
North of Ascension Island - 7.1

August 24, 2016
Italy - 6.2

August 19, 2016
South Georgia Island Region - 7.4

August 12, 2016
New Caledonia - 7.2

Full Lists of Recent Earthquakes USGS

PASSCAL/Flex Array Experiments RSS

Map of PASSCAL Experiments
Current and future experiments.

EarthScope / USArray Status

USArray Map
Earthscope Click the map above for a more detailed view.

USArray Homepage