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 Moment Tensor Products

Global Centroid-Moment-Tensors from the GCMT project at Lamont-Doherty Earth Observatory are available through SPUD within minutes after their publication. Initial quick-CMT solutions are shown and are later updated to GCMT solutions when updates arrive. The download button gives users the full NDK format solution. For more info, visit: www.globalcmt.org.

Citing Global Centroid-Moment-Tensor Products

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

http://ds.iris.edu/ds/products/momenttensor/#citation

Moment Tensor Help

The page displays information for individual Moment Tensors.

The centroid origin is displayed next to the primary origin from the IRIS database followed by the moment tensor details.
Moment Tensor for MW 6.2 (GCMT) EAST OF KURIL ISLANDS icon
Centroid Event
Date-Time (UTC): 2025-08-04 04:21:03
Location: EAST OF KURIL ISLANDS
Latitude, Longitude: 48.580 °, 156.830 °
Magnitude: 6.2 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-08-04 04:20:53
Location: EAST OF KURIL ISLANDS
Latitude, Longitude: 48.807 °, 156.457 °
Magnitude: 6.2 mww (us)
Depth: 10.0 km
Author: us,usauto,pt,at
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202508040420A
Timestamp: Q-20250804083831
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 3.1
Depth Determination: FIX
Scalar Moment 2.626 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr1.750.007
Mtt-0.5990.007
Mpp-1.150.007
Mrt1.00.02
Mrp1.710.02
Mtp-0.7760.006
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T297652.655
N322-0.058
P12324-2.596
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12192197
NP2327088
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves13532940
Mantle Waves130214125
Surface Waves14739850
Event Location
Source NDK
PDEQ 2025/08/04 04:20:53.4  48.78  156.47  10.0 0.0 6.2 EAST OF KURIL ISLANDS   
C202508040420A   B:135  329  40 S:147  398  50 M:130  214 125 CMT: 1 TRIHD:  3.1
CENTROID:     10.0 0.0  48.58 0.00  156.83 0.00  12.0  0.0 FIX  Q-20250804083831
25  1.750 0.007 -0.599 0.007 -1.150 0.007  1.000 0.020  1.710 0.020 -0.776 0.006
V10   2.655 65 297  -0.058  2  32  -2.596 24 123   2.626 219 21   97  32 70   88
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.2 EAST OF KURIL ISLANDSIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.2 EAST OF KURIL ISLANDSIncorporated Research Institutions for Seismology
GMVGMV for mww 6.2 EAST OF KURIL ISLANDSIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.2 EAST OF KURIL ISLANDSIncorporated Research Institutions for Seismology
Contributions