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/18145129

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) NORTH OF SVALBARD icon
Centroid Event
Date-Time (UTC): 2020-01-07 04:31:54
Location: NORTH OF SVALBARD
Latitude, Longitude: 80.040 °, -0.060 °
Magnitude: 5.2 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2020-01-07 04:31:52
Location: NORTH OF SVALBARD
Latitude, Longitude: 80.065 °, 0.248 °
Magnitude: 5.3 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202001070431A
Timestamp: S-20200330212342
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.0
Depth Determination: FIX
Scalar Moment 0.82 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr0.1340.011
Mtt-0.8210.011
Mpp0.6860.009
Mrt-0.190.029
Mrp0.2380.026
Mtp-0.0520.01
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T266210.783
N115660.074
P36011-0.857
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP144678
NP231183157
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves9213840
Mantle Waves000
Surface Waves14626050
Event Location
Source NDK
PDEW 2020/01/07 04:31:52.8  80.07    0.26  10.0 0.0 5.3 NORTH OF SVALBARD       
C202001070431A   B: 92  138  40 S:146  260  50 M:  0    0   0 CMT: 1 TRIHD:  1.0
CENTROID:      1.5 0.1  80.04 0.01   -0.06 0.04  12.0  0.0 FIX  S-20200330212342
24  0.134 0.011 -0.821 0.011  0.686 0.009 -0.190 0.029  0.238 0.026 -0.052 0.010
V10   0.783 21 266   0.074 66 115  -0.857 11 360   0.820  44 67    8 311 83  157
Other Formats
Contributions