IRIS offers free and open access to a comprehensive data store of raw geophysical time-series data collected from a large variety of sensors, courtesy of a vast array of US and International scientific networks, including seismometers (permanent and temporary), tilt and strain meters, infrasound, temperature, atmospheric pressure and gravimeters, to support basic research aimed at imaging the Earth's interior.
Data is stored at the IRIS Data Management Center in Seattle, Washington. We currently manage a large archive from over tens of thousands of seismic stations and ship hundreds of terabytes of data yearly. More information on data distribution.
The latest developments in Data and Software are published quarterly in the IRIS Data Management Center's online newsletter.
IRIS provides data and software for educational purposes. More information.
The IRIS DMC offers raw data, derived data products, software, tools and services for scientists undertaking research. These can be divided into the following broad sections:
- Time Series Data: The raw data collected from network stations around the globe.
- Event Data: Online access to event data. Typically seismic events, although we also record anthropogenic (human-created), gravimeter and meterological events.
- Stations: Use an online Google maps interface to explore network and station global distribution.
- Metadata: The MetaData Aggregator (MDA) returns metadata summaries from the IRIS DMC database including data availability and links to further services.
- Products: The IRIS Data Management System (DMS) creates and/or hosts multiple diverse derived data products. These products are both event-based and metadata-based. The DMC Searchable Product Depository (SPUD) is the primary data product management system.
Services: The IRIS DMC web services (IRIS and FDSN) provide access to a variety of information, including
- Data and metadata from the IRIS DMC databases
- Time series processing services
- Common calculation services
- Software: IRIS creates and hosts time-series related software. These can be subdivided into two broad categories:
- Tools: Various online tools provide direct web-based access to raw data, event data, and metadata.
- Support: IRIS provides researchers with several methods of support: