IRIS provides management of, and access to, observed
and derived data for the global earth science community.
This includes ground motion, atmospheric, infrasonic,
hydrological, and hydroacoustic data.
Our mission is to advance awareness and understanding of seismology
and earth science while inspiring careers in geophysics.
IRIS staff and subawardees oversee the construction,
operation, and maintenance of seismic networks
and related data facilities utilized
by a wide sector of the earth science community.
IRIS consists of three directorates:
Instrumentation Services (IS),
Data Services (DS), and
Education & Public Outreach (EPO).
Each directorate consists of various programs listed to the right.
IRIS has multiple online tools that allow you
to learn about global and regional seismicity.
IRIS is a consortium of over 120 US universities dedicated
to the operation of science facilities for the acquisition,
management, and distribution of seismological data.
IRIS is a 501 (c) (3) nonprofit organization incorporated
in the state of Delaware with its primary headquarters office
located in Washington, DC. IRIS is governed according to By-laws.
IRIS offers a variety of resources for the
seismological community and general public
including online interactive materials,
regular newsletters, brochures,
webinars, past event materials. We also offer
digital copies of our proposals and reviews
Novice - Basic seismology topics. Activities emphasize skills and abilities generally associated with students in the middle and high school grades.
Intermediate - Basic and/or intermediate seismology topics presented through activates that emphasize skills and abilities generally associated with high school and non-majors undergraduate courses.
Advanced - Intermediate and/or advanced seismology topics presented through activates that emphasize skills and abilities generally associated with undergraduate science majors.
Expert - Advanced and/or expert seismology topics presented through activates that emphasize skills and abilities generally associated with graduate students and faculty.
Liquefaction, Building collapse, Landslides Ground rupture Seismicity, Recurrence Interval
Triangulation, Magnitude, Intensity, Moment Magnitude, Seismic Moment, Focus,, Epicenter, Hypocenter, Foreshock , Aftershock
Strain, Stress, Tension, Compression, Shear, Elastic Rebound, Earthquake, Deformation, Brittle, Ductile , Elastic
Haiti, Honshu, Alaska, Sumatra, Chile, San Francisco, Loma Prieta,
Primary, Secondary, Surface, Love, Rayleigh, Body Waves, Seismic Wave, Wave
R/V Langseth, IRIS Data Management Center, IRIS PASSCAL Instrument Center, etc
The things you need to do and look for in seismic data that is collected from the ocean. Ghost Phase, T-Phase.
IRIS offers a range of resources for students, educators and the general public.
Animations - Concise animations that illustrate fundamental concepts that are difficult to convey to learners through other means (the real events may be too small, too large, too fast, too slow, or unsafe for the classroom).
Course - A series of lessons that provide the structure for a semester-long undergraduate course.
Demos - Quick teacher-lead activities (show-and-tell combined with an opportunity for learners to ponder, predict and discuss) to stimulate interest and convey a concept to learners.
Fact-Sheets - Single page, accessible, discussions of earthquake related topics.
Interactives - Uses interactive Flash (sfw) to illustrate fundamental concepts that are difficult to convey to learners through other means.
Lessons - A road map of what students will learn, how the instruciton will be effectively structured, and supporting background information.
Posters - More than just wallpaper, these eye-catching, educative posters invite students to become minds-on with Earth's internal structure, earthquakes, seismic waves and more!
Software-Web-Apps - Stand alone software, interactive web tools, and downloadable apps to help you explore seismic data and earthquake topics.
Videos - Concise video lectures give background information on the Earth and plate tectonics for teaching how earthquakes happen and how they are studied.