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

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 7.1 - Molucca Sea

Key Announcements

2014 Board of Directors Election Results
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Workshop on Seismic and Geodetic Facility Needs, May 4-6, 2015 - Apply Now!
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Update from IRIS President Bob Detrick – September 2014
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Donate to the David Simpson Fund for Innovation
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Brian Stump, Past Chair of IRIS Board, Named AAAS Fellow
Seismologist Brian Stump is recognized for distinguished contributions to his field, particularly in the area of seismic monitoring in support of the Comprehensive Nuclear-Test-Ban Treaty.
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Thorne Lay, Past Chair of IRIS Board, Receives Honor from SSA
Seismologist Thorne Lay has been selected to receive the Harry Fielding Reid Medal from the Seismological Society of America for his research accomplishments and service to the scientific community.
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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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View Past IRIS News

Recent Major EarthquakesRSS

November 15, 2014
Molucca Sea - 7.1

November 1, 2014
Fiji - 7.1

October 14, 2014
Offshore El Salvador - 7.3

October 9, 2014
Southern East Pacific Rise - 7.1

August 24, 2014
San Francisco Bay Area - 6.0

Full Lists of Recent Earthquakes USGS

PASSCAL/Flex Array Experiments RSS

2014 NAPA
August 24 2014 West Napa Earthquake Aftershock Deployment 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

2014 IAS
Description:Imaging the Socorro Fault. Read more

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