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 6.8 (GCMT) EAST OF KURIL ISLANDS icon
Centroid Event
Date-Time (UTC): 2025-08-03 05:38:03
Location: EAST OF KURIL ISLANDS
Latitude, Longitude: 50.570 °, 158.120 °
Magnitude: 6.8 MW
Depth: 30.3 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-08-03 05:37:55
Location: KURIL ISLANDS
Latitude, Longitude: 50.585 °, 157.864 °
Magnitude: 6.8 mww (us)
Depth: 30.0 km
Author: us,pt,at,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202508030537A
Timestamp: Q-20250804115537
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 6.0
Depth Determination: FREE
Scalar Moment 1.835 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr-1.620.006
Mtt0.7540.004
Mpp0.870.005
Mrt-0.5970.01
Mrp-0.470.01
Mtp0.9060.003
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T134121.881
N2254-0.089
P33177-1.789
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP121933-96
NP24757-86
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves14940550
Mantle Waves146343125
Surface Waves15239650
Event Location
Source NDK
PDEW 2025/08/03 05:37:55.6  50.58  157.80  35.0 0.0 6.8 KURIL ISLANDS           
C202508030537A   B:149  405  50 S:152  396  50 M:146  343 125 CMT: 1 TRIHD:  6.0
CENTROID:      8.1 0.0  50.57 0.00  158.12 0.00  30.3  0.1 FREE Q-20250804115537
26 -1.620 0.006  0.754 0.004  0.870 0.005 -0.597 0.010 -0.470 0.010  0.906 0.003
V10   1.881 12 134  -0.089  4 225  -1.789 77 331   1.835 219 33  -96  47 57  -86
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
GMVGMV for mww 6.8 KURIL ISLANDSIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.8 KURIL ISLANDSIncorporated Research Institutions for Seismology
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.8 EAST OF KURIL ISLANDSIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 6.8 KURIL ISLANDSIncorporated Research Institutions for Seismology
Back ProjectionsBack Projections for mww 6.8 KURIL ISLANDSEarthScope
AftershocksAftershocks for mww 6.8 KURIL ISLANDSIRIS DMC
Contributions