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/971240

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 5.2 (GCMT) PACIFIC-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2008-05-14 23:00:54
Location: PACIFIC-ANTARCTIC RIDGE
Latitude, Longitude: -55.320 °, -128.970 °
Magnitude: 5.2 MW
Depth: 16.5 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C200805142300A
Timestamp: S-20080811110004
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.0
Depth Determination: FREE
Scalar Moment 8.099 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.7860.221
Mtt5.330.251
Mpp-4.550.185
Mrt-0.2690.546
Mrp0.1330.469
Mtp6.410.168
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T15418.486
N27488-0.781
P642-7.711
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP119988-179
NP210989-2
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves517640
Mantle Waves000
Surface Waves9014050
Event Location
Source NDK
PDEW 2008/05/14 23:00:50.4 -55.10 -129.04  10.0 4.8 0.0 PACIFIC-ANTARCTIC RIDGE 
C200805142300A   B: 51   76  40 S: 90  140  50 M:  0    0   0 CMT: 1 TRIHD:  1.0
CENTROID:      4.5 0.2 -55.32 0.01 -128.97 0.02  16.5  1.1 FREE S-20080811110004
23 -0.786 0.221  5.330 0.251 -4.550 0.185 -0.269 0.546  0.133 0.469  6.410 0.168
V10   8.486  1 154  -0.781 88 274  -7.711  2  64   8.099 199 88 -179 109 89   -2
Other Formats
Contributions