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/975965

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 5.0 (GCMT) ARCTIC OCEAN icon
Centroid Event
Date-Time (UTC): 2008-11-17 13:16:51
Location: ARCTIC OCEAN
Latitude, Longitude: 79.610 °, -116.810 °
Magnitude: 5.0 MW
Depth: 20.9 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C200811171316B
Timestamp: S-20090213133756
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.7
Depth Determination: FREE
Scalar Moment 3.534 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr3.550.265
Mtt-0.6820.151
Mpp-2.870.199
Mrt0.0550.269
Mrp-1.020.295
Mtp-0.9470.103
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T74803.717
N1996-0.368
P2898-3.351
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1263899
NP21945383
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves212240
Mantle Waves000
Surface Waves678050
Event Location
Source NDK
PDEW 2008/11/17 13:16:50.1  79.69 -115.60  10.0 4.7 0.0 ARCTIC OCEAN            
C200811171316B   B: 21   22  40 S: 67   80  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:      1.3 0.4  79.61 0.04 -116.81 0.18  20.9  1.1 FREE S-20090213133756
23  3.550 0.265 -0.682 0.151 -2.870 0.199  0.055 0.269 -1.020 0.295 -0.947 0.103
V10   3.717 80  74  -0.368  6 199  -3.351  8 289   3.534  26 38   99 194 53   83
Other Formats
Contributions