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

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 7.6 - Peru

Key Announcements

Attend the IRIS Membership Meeting on Monday, December 14 in San Francisco
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IRIS Announces 2015 Slate of Candidates for Board of Directors
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Update from IRIS President Bob Detrick – September 2015
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New Report: Future Geophysical Facilities Required to Address Grand Challenges
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IRIS Issues Strategic Plan
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NSF Issues ‘Dear Colleague’ Letter About the SAGE and GAGE Recompetition
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Donate to the David Simpson Fund for Innovation
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EarthScope Magnetotelluric Transportable Array Reaches the Atlantic Ocean
The EarthScope USArray Magnetotelluric Transportable Array (MT-TA) reached a major milestone when it installed a station in Jekyll Island, Georgia. This is the first MT-TA station to reach the Atlantic coast.
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USArray Short Course Was a Huge Success
Twenty-eight students from 26 institutions participated in this year’s IRIS-organized short course on USArray data processing that was hosted by Indiana University in Bloomington.
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IRIS Publishes 2015 Annual Report
Download a copy to see the ways in which IRIS is continuing to advance discovery, research, and education to understand our planet and benefit society.
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Final Report on Global Seismographic Network External Review Released
The Global Seismographic Network (GSN) was recently evaluated by an External Review Committee. In their report, the review committee was unambiguous in its assessment of the fundamental importance of the GSN for scientific discovery and earthquake monitoring, as well as mission-agency objectives.
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View Past IRIS News

Recent Major EarthquakesRSS

November 24, 2015
Peru - 7.6

November 18, 2015
Solomon Islands - 7.0

October 26, 2015
Afghanistan - 7.5

October 20, 2015
Vanuatu - 7.1

September 16, 2015
Offshore Coquimbo, Chile - 8.3

Full Lists of Recent Earthquakes USGS

PASSCAL/Flex Array Experiments RSS

Taku seismic
A seismic reflection study to characterize yearly and seasonal changes in the subglacial environment at the terminus of Taku Glacier, Southeast Alaska. Read more

DUGL Active Source
This is an active source piggyback experiment to be done in conjunction with the three-dimensional broadband array deployment at Homestake Mine in South Dakota... Read more

Shale Hills Seismic
We plan to deploy shallow seismic surveys at the Shale Hills Critical Zone Observatory to measure both the depth to unweathered bedrock and fracture density depth profiles... Read more

The San Jacinto fault zone is the most seismically-active branch of the San Andreas system in southern California, with accelerated activity of M5+ events in recent years... 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