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

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

doi:10.17611/DP/9617804

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 5.3 (GCMT) TONGA ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2014-03-13 06:09:27
Location: TONGA ISLANDS REGION
Latitude, Longitude: -23.330 °, -174.880 °
Magnitude: 5.3 MW
Depth: 14.6 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2014-03-13 06:09:22
Location: TONGA ISLANDS REGION
Latitude, Longitude: -23.282 °, -175.307 °
Magnitude: 5.1 mb (null)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201403130609A
Timestamp: S-20140607194216
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.2
Depth Determination: FREE
Scalar Moment 1.328 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr1.060.019
Mtt-0.1060.014
Mpp-0.9560.015
Mrt0.2680.029
Mrp0.7540.032
Mtp-0.3160.011
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T291711.328
N1991-0.002
P10919-1.329
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP11982689
NP2196491
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves10918840
Mantle Waves000
Surface Waves15027250
Event Location
Source NDK
PDEW 2014/03/13 06:09:22.3 -23.28 -175.31  10.0 0.0 5.1 TONGA ISLANDS REGION    
C201403130609A   B:109  188  40 S:150  272  50 M:  0    0   0 CMT: 1 TRIHD:  1.2
CENTROID:      5.2 0.1 -23.33 0.01 -174.88 0.01  14.6  0.4 FREE S-20140607194216
24  1.060 0.019 -0.106 0.014 -0.956 0.015  0.268 0.029  0.754 0.032 -0.316 0.011
V10   1.328 71 291  -0.002  1 199  -1.329 19 109   1.328 198 26   89  19 64   91
Other Formats
Contributions