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/9745278

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) SOUTH GEORGIA ISLAND REGION icon
Centroid Event
Date-Time (UTC): 2014-08-31 04:14:09
Location: SOUTH GEORGIA ISLAND REGION
Latitude, Longitude: -53.270 °, -32.230 °
Magnitude: 5.2 MW
Depth: 23.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2014-08-31 04:14:05
Location: SOUTH GEORGIA ISLAND REGION
Latitude, Longitude: -53.226 °, -32.244 °
Magnitude: 5.1 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201408310414A
Timestamp: S-20141117172108
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.0
Depth Determination: FREE
Scalar Moment 0.835 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr0.0710.018
Mtt0.7230.017
Mpp-0.7940.016
Mrt-0.2370.029
Mrp-0.1280.023
Mtp-0.2170.013
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T186170.818
N40700.035
P27910-0.853
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1324715
NP223286161
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves8512240
Mantle Waves000
Surface Waves13022050
Event Location
Source NDK
PDEW 2014/08/31 04:14:05.1 -53.23  -32.24  10.0 0.0 5.1 SOUTH GEORGIA ISLAND REG
C201408310414A   B: 85  122  40 S:130  220  50 M:  0    0   0 CMT: 1 TRIHD:  1.0
CENTROID:      4.7 0.2 -53.27 0.01  -32.23 0.01  23.0  1.0 FREE S-20141117172108
24  0.071 0.018  0.723 0.017 -0.794 0.016 -0.237 0.029 -0.128 0.023 -0.217 0.013
V10   0.818 17 186   0.035 70  40  -0.853 10 279   0.835 324 71    5 232 86  161
Other Formats
Contributions