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

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 7.3 - Offshore El Salvador

Key Announcements

Update from IRIS President Bob Detrick – September 2014
Read More

Donate to the David Simpson Fund for Innovation
Read More


Participate in the ENGAGE Workshop, January 18-20, 2015! Apply by November 7.
The ENGAGE Workshop - Encouraging Networks between Geoscience and Geoscience Education - will bring together early-career geoscience researchers and discipline-based education researchers to explore collaborative approaches that leverage advances in both geoscience disciplines and geoscience education.
Read More

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.
Read More

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.
Read More

Science Magazine Highlights Passive Megasurveys
The potential of passive surveys using dense arrays of seismometers is reported in the 14 August 2014 issue.
Read More

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.
Read More

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.
Read More

View Past IRIS News

PASSCAL/Flex Array Experiments RSS

Field geophysics class. Purpose is to collect shallow reflection and refraction data over landslides in the Coast Range and active faults in central Oregon. Read more

We use seismic to measure the subglacial environment of Taku glacier, an advancing glacier in the South of Alaska... Read more

Norway Microbarom
We would like to put out 3 mini infrasound arrays with 1 component each approximately 1 km spacing in Norway during the winter of 2014. Read more

Temporary deployment of 5 - 6 short period stations to record and better locate the swarm of earthquakes that have been occurring since an M 5... 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