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/18024312

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 4.7 (GCMT) GREENLAND SEA icon
Centroid Event
Date-Time (UTC): 2019-09-07 20:05:14
Location: GREENLAND SEA
Latitude, Longitude: 79.470 °, 3.120 °
Magnitude: 4.7 MW
Depth: 13.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2019-09-07 20:05:12
Location: GREENLAND SEA
Latitude, Longitude: 79.496 °, 4.351 °
Magnitude: 4.6 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201909072005A
Timestamp: S-20191129202805
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.6
Depth Determination: FREE
Scalar Moment 1.545 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-1.440.09
Mtt0.5260.06
Mpp0.9180.055
Mrt-0.3880.152
Mrp0.160.117
Mtp0.7840.034
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T12921.535
N219150.025
P3074-1.555
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP120345-112
NP25349-70
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves252940
Mantle Waves000
Surface Waves9515250
Event Location
Source NDK
PDEW 2019/09/07 20:05:12.6  79.50    4.41  10.0 0.0 4.6 GREENLAND SEA           
C201909072005A   B: 25   29  40 S: 95  152  50 M:  0    0   0 CMT: 1 TRIHD:  0.6
CENTROID:      1.6 0.2  79.47 0.02    3.12 0.10  13.8  1.0 FREE S-20191129202805
23 -1.440 0.090  0.526 0.060  0.918 0.055 -0.388 0.152  0.160 0.117  0.784 0.034
V10   1.535  2 129   0.025 15 219  -1.555 74  30   1.545 203 45 -112  53 49  -70
Other Formats
Contributions