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/736736

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 6.0 (GCMT) WESTERN INDIAN-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2012-05-23 22:59:55
Location: WESTERN INDIAN-ANTARCTIC RIDGE
Latitude, Longitude: -50.480 °, 139.420 °
Magnitude: 6.0 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2012-05-23 22:59:52
Location: WESTERN INDIAN-ANTARCTIC RIDGE
Latitude, Longitude: -50.420 °, 139.516 °
Magnitude: 6.0 mww (US)
Depth: 10.0 km
Author: US
Catalog, Contributor: NEIC PDE, US
Related Products:
CMT Details
Event ID C201205232259A
Timestamp: S-20120820161135
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.5
Depth Determination: FIX
Scalar Moment 1.293 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr-0.060.008
Mtt0.0980.009
Mpp-0.0380.009
Mrt0.0550.021
Mrp-0.0260.021
Mtp-1.290.007
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T4321.324
N24487-0.062
P1341-1.262
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1179881
NP28889178
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves14030940
Mantle Waves114172125
Surface Waves14331650
Event Location
Source NDK
PDEW 2012/05/23 22:59:52.7 -50.42  139.52  10.0 5.5 6.0 WESTERN INDIAN-ANTARCTIC
C201205232259A   B:140  309  40 S:143  316  50 M:114  172 125 CMT: 1 TRIHD:  2.5
CENTROID:      2.9 0.1 -50.48 0.00  139.42 0.01  12.0  0.0 FIX  S-20120820161135
25 -0.060 0.008  0.098 0.009 -0.038 0.009  0.055 0.021 -0.026 0.021 -1.290 0.007
V10   1.324  2  43  -0.062 87 244  -1.262  1 134   1.293 179 88    1  88 89  178
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.0 WESTERN INDIAN-ANTARCTIC RIDGEIRIS
EQ EnergyEQ Energy for MW 5.9 WESTERN INDIAN-ANTARCTIC RIDGEIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.0 WESTERN INDIAN-ANTARCTIC RIDGEIRIS DMC
Contributions