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/991205

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 4.9 (GCMT) SVALBARD REGION icon
Centroid Event
Date-Time (UTC): 2010-07-30 09:58:34
Location: SVALBARD REGION
Latitude, Longitude: 76.320 °, 7.110 °
Magnitude: 4.9 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C201007300958A
Timestamp: S-20101025123031
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.7
Depth Determination: FIX
Scalar Moment 3.293 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-2.250.086
Mtt0.1450.09
Mpp2.10.078
Mrt-0.7830.341
Mrp-2.160.283
Mtp0.9260.077
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T111223.402
N211-0.223
P28868-3.185
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP120323-87
NP22067-91
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves182140
Mantle Waves000
Surface Waves8012150
Event Location
Source NDK
PDEW 2010/07/30 09:58:35.6  76.34    7.65  10.0 4.4 0.0 SVALBARD REGION         
C201007300958A   B: 18   21  40 S: 80  121  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:     -0.8 0.3  76.32 0.03    7.11 0.08  12.0  0.0 FIX  S-20101025123031
23 -2.250 0.086  0.145 0.090  2.100 0.078 -0.783 0.341 -2.160 0.283  0.926 0.077
V10   3.402 22 111  -0.223  1  21  -3.185 68 288   3.293 203 23  -87  20 67  -91
Other Formats
Contributions