IRIS provides management of, and access to, observed and derived data for the global earth science community.
This includes ground motion, atmospheric, infrasonic, magnetotelluric, strain, hydrological, and hydroacoustic data.
IRIS facilitates seismological and geophysical research by operating and maintaining open geophysical networks and providing portable instrumentation for user-driven experiments.
Instrumentation support includes engineering services, training, logistics, and best practices in equipment usage.
All data collected with IRIS instrumentation are made freely and openly available.
Our mission is to advance awareness and understanding of seismology and earth science while inspiring careers in geophysics.
IRIS is a consortium of over 125 US universities dedicated to the operation of science facilities for the acquisition, management, and distribution of seismological data, and for fostering cooperation among IRIS members, affiliates, and other organizations in order to advance seismological research and education.
At 10:15pm Alaska time on July 28, a magnitude 8.2 earthquake struck offshore of the Alaska Peninsula at a depth of 32 km. This was the largest U.S. earthquake in 50 years. No major damage was reported.
15 slide Powerpoint presentation (zipped ppt 9.99 MB / pdf 5.81 MB)
Presentación en Español (zipped ppt 9.92 MB / pdf 5.84 MB)
IRIS Earthquake Browser
Alaska: The Great Alaska Earthquake of 1964
Alaska: Tectonics and Earthquakes
GPS Analysis of Plate Tectonics and Earthquakes in Alaska
View All Teachable Moments