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

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 6.0 - San Francisco Bay Area

Key Announcements

Update from IRIS President Bob Detrick – September 2014
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Donate to the David Simpson Fund for Innovation
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IRIS Board of Directors Appoints a Nominations Committee for 2014 Elections
All Member Representatives are encouraged to contact the Nominations Committee to provide suggestions for candidates for the open positions.
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IRIS Mourns the Passing of Renowned Geophysicist J. Freeman Gilbert
J. Freeman Gilbert, a pioneer in applying modern computational tools to seismic problems, was one of the founding Directors of IRIS and was elected to the first Executive Committee of the Board. He was a wonderful colleague who will be sorely missed.
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Science Magazine Highlights Passive Megasurveys
The potential of passive surveys using dense arrays of seismometers is reported in the 14 August 2014 issue.
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IRIS Data Services Sponsors 8th Data Management Workshop in Bogotá, Colombia
About 35 participants from 18 countries in Latin America and the Caribbean met July 26-31, for a six-day Data Services workshop in Bogotá, Colombia.
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Two Universities Join IRIS as Foreign Affiliate Members
IRIS is pleased to welcome two new Foreign Affiliates during May, the University of Oxford and the Tokyo Institute of Technology.
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IRIS Project Associate Andy Frassetto Blogs about Inspiration from USArray
The Bridge, one of the American Geophysical Union's blogs, invited Andy Frassetto to share his thoughts on how EarthScope and USArray are inspiring the next generation of seismologists.
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View Past IRIS News

PASSCAL/Flex Array Experiments RSS

The Mid-Atlantic Geophysical Integrative Collaboration (MAGIC) experiment aims to characterize lithospheric structure, mantle flow, and topographic evolution of the southeastern US continental margin from the Atlantic coast to the continental interior. Read more

We are requesting at total of 25 L22 3-component geophone packages to be deployed for one month to augment a 10 station broadband array centered near -78... Read more

Mt St Helens
Seismic tomography experiment of the Mt St Helens volcanic system... Read more

Man Made Maars
A series of field-scale chemical blasts will be performed in order to investigate the relationship between scaled depth of burial and the seismoacoustic wavefield... Read more

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