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 6.3 (GCMT) SANTA CRUZ ISLANDS icon
Centroid Event
Date-Time (UTC): 2025-08-14 16:22:38
Location: SANTA CRUZ ISLANDS
Latitude, Longitude: -11.690 °, 165.920 °
Magnitude: 6.3 MW
Depth: 48.1 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-08-14 16:22:32
Location: SANTA CRUZ ISLANDS
Latitude, Longitude: -11.636 °, 166.171 °
Magnitude: 6.3 mww (us)
Depth: 31.0 km
Author: us,usauto,pt,at
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202508141622A
Timestamp: Q-20250814213854
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 3.4
Depth Determination: FREE
Scalar Moment 3.327 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr2.520.015
Mtt0.4390.013
Mpp-2.960.013
Mrt1.180.014
Mrp-0.8820.015
Mtp1.20.011
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T8673.071
N156200.511
P25011-3.583
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1438123
NP21445967
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves14638740
Mantle Waves124222125
Surface Waves14535650
Event Location
Source NDK
PDEQ 2025/08/14 16:22:32.9 -11.64  166.17  31.0 0.0 6.3 SANTA CRUZ ISLANDS      
C202508141622A   B:146  387  40 S:145  356  50 M:124  222 125 CMT: 1 TRIHD:  3.4
CENTROID:      6.0 0.0 -11.69 0.00  165.92 0.00  48.1  0.2 FREE Q-20250814213854
25  2.520 0.015  0.439 0.013 -2.960 0.013  1.180 0.014 -0.882 0.015  1.200 0.011
V10   3.071 67   8   0.511 20 156  -3.583 11 250   3.327   4 38  123 144 59   67
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.3 SANTA CRUZ ISLANDSIRIS
GMVGMV for mww 6.2 SANTA CRUZ ISLANDSIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 6.2 SANTA CRUZ ISLANDSIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.2 SANTA CRUZ ISLANDSIncorporated Research Institutions for Seismology
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.3 SANTA CRUZ ISLANDSIncorporated Research Institutions for Seismology
Contributions