The Event Based Products search allows searching for products directly associated
with a single event. Events may be selected by location, time and magnitude.
USArray Ground Motion Visualizations
USArray Ground Motion Visualizations (GMVs) use real data to show
seismic waves sweep across the USArray network of seismic stations.
Watch how seismic waves from earthquakes in the US and around the
world cause the ground to move at each seismometer.
A comprehensive suite of station maps, record sections, vespagrams and coda
stacks generated shortly after events using all available, three component broadband
data at the IRIS DMC for earthquakes larger than magnitude 6.0.
Global Centroid-Moment-Tensors from the
at Lamont-Doherty Earth Observatory.
Initial quick-CMT solutions are available within minutes of an event and are later updated
to full GCMT solutions when updates arrive. The download button gives
users the full NDK format
The Back-projection product shows the beamformed time history and location of coherent
short period P-wave energy generated by all modern large M6.5+ earthquakes observed at
three regional arrays and across the Global Seismic Network.
The Shear-Wave Splitting Database is a mirror of the Géosciences Montpellier's
splitting database that provides access to this valuable database using the
SPUD system and its customized Google Maps interface.
A repository of Earth models with the aim of providing the research community with
access to various tomographic models, visualization tools for model preview, facilities
to extract model data/metadata and access to the contributed processing software and scripts.
The TA Infrasound Reference Event Database (TAIRED) is a user-supported evolving
database that serves as a reference event
depository where researchers can contribute event and find samples of infrasound events for their use.
USArray magnetotelluric transfer functions calculated from USArray MT stations by
Oregon State University. These define the frequency dependent linear relationship between
components of electromagnetic (EM) field variations measured at a single
The DMC archives phase arrivals from the USArray
Array Network Facility
in addition to other DMS sources. The event bulletins are added to the DMC's event
tables, making them available via the standard event query interfaces. The original
submissions are also available as products.
WWSSN Film Chips
The World Wide Standardized Seismograph Network (WWSSN) operated 120 seismic stations
covering every continent beginning in 1961.
Scanned images of data from this network are available from SPUD.
The IDA division of the IRIS Global Seismic Network performs calibrations of their instruments at various times.
These calibrations are used primarily to validate that the response metadata matches the
actual response of the instrument.
Source Time Functions
The Source-Time Function (STF) product is a suite of STFs including:
Short-arc Rayleigh (R1) waves STFs via deconvolution using theoretical
Green function calculated using normal mode synthetics and the gCMT solution
P-wave STFs via deconvolution with pre-computed body wave synthetics for the
Regional first P arrival STFs computed by stacking multi-channel
cross-correlation aligned seismograms by selected regional arrays.
The All Products search allows searching for products using location and time criteria.
Products without location information can optionally be included in the results.