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/832750

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) NW TERRITORIES - NUNAVUT, CANADA icon
Centroid Event
Date-Time (UTC): 1979-06-27 08:50:32
Location: NW TERRITORIES - NUNAVUT, CANADA
Latitude, Longitude: 69.960 °, -97.270 °
Magnitude: 5.0 MW
Depth: 30.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID B062779B
Timestamp: O-00000000000000
CMT Version: Final
NDK Version: V10
Reference Catalog: MLI
Source Zero Trace
Moment Rate Fn: BOXHD
Half Duration: 1.3
Depth Determination: BDY
Scalar Moment 3.54 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr0.9580.332
Mtt2.2720.531
Mpp-3.230.565
Mrt1.9570.72
Mrp0.4121.083
Mtp0.6690.338
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T352353.77
N18054-0.45
P854-3.32
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP11356324
NP23369151
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves91945
Mantle Waves000
Surface Waves000
Event Location
Source NDK
MLI  1979/06/27 08:50:35.1  70.00  -96.32  18.0 5.1 4.4 N.W. TERRITORIES, CANADA
B062779B         B:  9   19  45 S:  0    0   0 M:  0    0   0 CMT: 1 BOXHD:  1.3
CENTROID:     -3.0 2.2  69.96 0.24  -97.27 0.50  30.0  0.0 BDY  O-00000000000000
23  0.958 0.332  2.272 0.531 -3.230 0.565  1.957 0.720  0.412 1.083  0.669 0.338
V10   3.770 35 352  -0.450 54 180  -3.320  4  85   3.540 135 63   24  33 69  151
Other Formats
Contributions