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

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 7.3 - Nepal

Key Announcements

IRIS and UNAVCO Boards of Directors Submit ‘Guiding Principles’ Letter to NSF
Read More

NSF Issues ‘Dear Colleague’ Letter About the SAGE and GAGE Recompetition
Read More

Update from IRIS President Bob Detrick – March 2015
Read More

Donate to the David Simpson Fund for Innovation
Read More


Hundreds of Sensors Deployed to Image Socorro Magma Body
PASSCAL staff assisted Principal Investigators with the installation of hundreds of sensors to image the Socorro Magma Body beneath the Sevilleta National Wildlife Refuge in central New Mexico.
Read More

USArray Featured in Canada’s Leading Newspaper
The article in The Globe and Mail highlights how data from EarthScope seismic stations in the US and Canada are being used to better understand the structure of the North American continent.
Read More

IRIS Data Services Announces New Global Empirical Green’s Tensor Database
A nested global empirical Green’s tensor (EGT) database derived from three-component continuous data at global, continental and local length scales is now available.
Read More

Access the Special Event Page for Information About the Magnitude 7.8 Earthquake in Nepal
The IRIS Data Management Center has created a Special Event web page that provides direct links to and images of data and materials available from IRIS programs and preliminary research results from the seismology community.
Read More

Program Alumni Receive NSF Graduate Research Fellowships and Honorable Mentions
Former IRIS interns were recently awarded the NSF Graduate Research Fellowship in geophysics or were nominated for an Honorable Mention.
Read More

View Past IRIS News

Recent Major EarthquakesRSS

May 12, 2015
Nepal - 7.3

May 7, 2015
Papua New Guinea - 7.1

May 5, 2015
Papua New Guinea - 7.5

April 25, 2015
Nepal - 7.8

March 29, 2015
Papua New Guinea - 7.5

Full Lists of Recent Earthquakes USGS

PASSCAL/Flex Array Experiments RSS

MT and Seismic at Okmok
Our goal is to image the entire volcanic system at Okmok caldera through use of seismic and magnetotelluric tomographic methods. Read more

We plan to deploy 5 short-period seismometers around an actively pumping injection well in Weld County, CO... Read more

Ross Ice Shelf Project
We aim to deploy 10 instrument passive array to monitor for ice shelf seismicity... Read more

2015 IAS
Imaging the Socorro Fault. 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