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/736741

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 5.9 (GCMT) WESTERN INDIAN-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2012-05-23 23:19:22
Location: WESTERN INDIAN-ANTARCTIC RIDGE
Latitude, Longitude: -50.400 °, 139.470 °
Magnitude: 5.9 MW
Depth: 14.1 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2012-05-23 23:19:18
Location: WESTERN INDIAN-ANTARCTIC RIDGE
Latitude, Longitude: -50.352 °, 139.536 °
Magnitude: 5.9 mwc (GCMT)
Depth: 6.6 km
Author: GCMT
Catalog, Contributor: NEIC PDE, US
Related Products:
CMT Details
Event ID C201205232319A
Timestamp: S-20120820161540
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.2
Depth Determination: FREE
Scalar Moment 9.612 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr-0.4640.097
Mtt0.8470.087
Mpp-0.3830.092
Mrt1.390.226
Mrp0.8070.217
Mtp-9.450.092
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T4339.723
N29880-0.223
P13310-9.501
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP117881-5
NP226985-171
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves9716340
Mantle Waves107147125
Surface Waves14229450
Event Location
Source NDK
PDEW 2012/05/23 23:19:18.0 -50.35  139.54   6.6 5.6 5.9 WESTERN INDIAN-ANTARCTIC
C201205232319A   B: 97  163  40 S:142  294  50 M:107  147 125 CMT: 1 TRIHD:  2.2
CENTROID:      4.8 0.1 -50.40 0.00  139.47 0.01  14.1  0.6 FREE S-20120820161540
24 -0.464 0.097  0.847 0.087 -0.383 0.092  1.390 0.226  0.807 0.217 -9.450 0.092
V10   9.723  3  43  -0.223 80 298  -9.501 10 133   9.612 178 81   -5 269 85 -171
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 5.9 WESTERN INDIAN-ANTARCTIC RIDGEIRIS
Contributions