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/960530

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) NORWEGIAN SEA icon
Centroid Event
Date-Time (UTC): 2007-03-20 17:03:38
Location: NORWEGIAN SEA
Latitude, Longitude: 72.160 °, 0.860 °
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 C200703201703A
Timestamp: S-20070615101318
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 3.047 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-1.570.095
Mtt0.9770.085
Mpp0.5940.087
Mrt-0.5490.321
Mrp-1.830.295
Mtp2.020.073
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T134193.38
N3230-0.665
P25254-2.714
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP126137-35
NP22070-122
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves151740
Mantle Waves000
Surface Waves659750
Event Location
Source NDK
PDEW 2007/03/20 17:03:38.7  72.30    1.02  10.0 4.7 4.0 NORWEGIAN SEA           
C200703201703A   B: 15   17  40 S: 65   97  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:      0.0 0.3  72.16 0.02    0.86 0.07  12.0  0.0 FIX  S-20070615101318
23 -1.570 0.095  0.977 0.085  0.594 0.087 -0.549 0.321 -1.830 0.295  2.020 0.073
V10   3.380 19 134  -0.665 30  32  -2.714 54 252   3.047 261 37  -35  20 70 -122
Other Formats
Contributions