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

Data Visualizations

The USArray Ground Motion Visualization (GMV)

Latest Major Earthquake Information

Magnitude 7.9 - Papua New Guinea

Key Announcements

2016 Board of Directors Election Results
Read More

Update from IRIS President Bob Detrick - Fall 2016
Read More

IRIS Issues Strategic Plan
Read More

Donate to the David Simpson Fund for Innovation
Read More


Submit Feedback on Subduction Zone Observatory Draft Report by May 1
The draft report presents the range of views discussed at the workshop that could be pursued in the coming years to transform subduction zone science.
Read More

IRIS Data Services Releases Spring Newsletter
Keep informed! Read the latest news and developments about data products and services in the Spring 2017 edition of the IRIS Data Services newsletter.
Read More

IRIS Releases LASSO (Latest Assessment of Seismic Station Observations)
LASSO, developed by Instrumental Software Technologies Inc. in conjunction with IRIS Instrumentation Services, is a client to load, display, sort, rank, and export the measurements of quality produced by MUSTANG.
Read More

IRIS Manager Bob Busby Discusses the Transportable Array on “Don’t Panic Geocast”
During this hour-long podcast, Bob Busby describes a wide range of topics pertaining to the Transportable Array deployment in the Lower 48 and Alaska.
Read More

Transportable Array Demonstrates its New Drilling Rig and Sensor Emplacement Routine
A third-generation lightweight air rotary drill system was recently tested at the IRIS PASSCAL Instrument Center. This custom, high-performance drill is helicopter portable and can make a shallow hole in any type of ground, including solid rock, frost-shattered overburden, cobbles and frozen soils.
Read More

View Past IRIS News

Recent Major EarthquakesRSS

January 22, 2017
Papua New Guinea - 7.9

January 10, 2017
Philippines - 7.3

December 25, 2016
Southern Chile - 7.6

December 17, 2016
Papua New Guinea - 7.9

December 8, 2016
Solomon Islands - 7.7

Full Lists of Recent Earthquakes USGS

PASSCAL/Flex Array Experiments RSS

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