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.
A magnitude 7.1 earthquake struck late Saturday night local time about 94.2 km (58.5 miles) southeast of Sendai, Japan. At least 50 people were reported injured and nearly a million households were left without power.
15 slide Powerpoint presentation (zipped ppt/animation 113 MB / pdf 55.3 MB)
Presentación en Español (zipped ppt 113 MB / pdf 55.3 MB)
IRIS Earthquake Browser
Travel-time Curves: How they are created
Focal Mechanisms Explained
Japan's Earthquakes & Tectonic Setting
View All Teachable Moments