About SPUD

SPUD Version 3.0

The Searchable Product Depository (SPUD) is the IRIS DMC's primary data product management system. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc.) created either at the DMC or by members of the community.

For users SPUD is the query and access point for these products. The web interfaces allow users to search for products using customized queries across product and event details. Users can search across all product types at once or within specific product types. SPUD also has web service interfaces for programmatic discovery and access to the data products.

If any products from SPUD are used in your research please be sure to cite the identified author of the product and the IRIS DMS [Citation Information].

About Aftershocks

The Aftershocks product consists of an aftershock sequence animation, a map and other figures automatically generated for all events with magnitudes 7.0 and greater. The animation and figures are updated hourly for the first day and then twice daily for the following 9 days. Circle diameters are scaled by magnitude and colors by depth. For recent events, the USGS PDE catalog is used. GCMT focal mechanisms are used when available.

For more information visit the Aftershocks product page.

This product is automatically generated without human review.

Citing Aftershock Products

If you use Aftershocks in publications, please cite according to the instructions at:


When citing this Aftershocks page please use the Digital Object Identifier (DOI):


Aftershocks Help

The page displays information for Aftershock data.

Aftershocks for MO 7.1 SOUTHERN ALASKA icon
Date-Time (UTC): 2016-01-24 10:30:29
Latitude, Longitude: 59.620 °, -153.339 °
Magnitude: 7.1 mww (us)
Depth: 125.6 km
Author: us
Catalog, Contributor: NEIC PDE, ak
Related Products:
Product Trigger Origin
Date-Time (UTC): 2016-01-24 10:30:30
Latitude, Longitude: 59.659 °, -153.452 °
Magnitude: 7.1 MO (NEIC)
Depth: 127.8 km
Author: US
Catalog, Contributor: NEIC PDE, NEIC COMCAT
Focal Mechanism
Nodal Planes
NameStrike (°)Dip (°)Rake (°)

GCMT Magnitude: 7.1 MW
Aftershocks figures

FilenameDescriptionFile Type
2016. file of events plotted (from IRIS web services)text/plain