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/9617528

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 5.1 (GCMT) RAT ISLANDS, ALEUTIAN ISLANDS icon
Centroid Event
Date-Time (UTC): 2014-03-06 03:24:20
Location: RAT ISLANDS, ALEUTIAN ISLANDS
Latitude, Longitude: 51.750 °, 176.230 °
Magnitude: 5.1 MW
Depth: 52.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2014-03-06 03:24:19
Location: RAT ISLANDS, ALEUTIAN ISLANDS
Latitude, Longitude: 51.801 °, 176.138 °
Magnitude: 5.0 mb (null)
Depth: 43.75 km
Author: at,us,ak
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201403060324A
Timestamp: S-20140607013623
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.8
Depth Determination: FREE
Scalar Moment 5.17 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.8890.154
Mtt-1.670.136
Mpp2.560.118
Mrt3.770.136
Mrp2.860.116
Mtp-0.7310.101
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T290364.52
N40261.301
P15743-5.819
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP131926-171
NP222286-64
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves7510840
Mantle Waves000
Surface Waves12619050
Event Location
Source NDK
PDEW 2014/03/06 03:24:19.4  51.80  176.14  43.8 0.0 5.0 RAT ISLANDS, ALEUTIAN IS
C201403060324A   B: 75  108  40 S:126  190  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:      1.5 0.2  51.75 0.01  176.23 0.02  52.0  2.4 FREE S-20140607013623
23 -0.889 0.154 -1.670 0.136  2.560 0.118  3.770 0.136  2.860 0.116 -0.731 0.101
V10   4.520 36 290   1.301 26  40  -5.819 43 157   5.170 319 26 -171 222 86  -64
Other Formats
Contributions