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/977240

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) PACIFIC-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2009-01-07 17:29:59
Location: PACIFIC-ANTARCTIC RIDGE
Latitude, Longitude: -56.750 °, -142.090 °
Magnitude: 5.2 MW
Depth: 20.4 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C200901071729A
Timestamp: S-20090404164824
CMT Version: Final
NDK Version: V10
Reference Catalog: SWEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.0
Depth Determination: FREE
Scalar Moment 7.949 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.5720.223
Mtt5.820.249
Mpp-5.250.196
Mrt1.70.405
Mrp-0.1360.35
Mtp5.460.166
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T338108.321
N12478-0.747
P2476-7.577
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12279178
NP21138811
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves588040
Mantle Waves000
Surface Waves6910850
Event Location
Source NDK
SWEQ 2009/01/07 17:29:52.0 -57.25 -142.25  10.0 0.0 5.2 PACIFIC-ANTARCTIC RIDGE 
C200901071729A   B: 58   80  40 S: 69  108  50 M:  0    0   0 CMT: 1 TRIHD:  1.0
CENTROID:      7.8 0.2 -56.75 0.01 -142.09 0.02  20.4  1.3 FREE S-20090404164824
23 -0.572 0.223  5.820 0.249 -5.250 0.196  1.700 0.405 -0.136 0.350  5.460 0.166
V10   8.321 10 338  -0.747 78 124  -7.577  6 247   7.949  22 79  178 113 88   11
Other Formats
Contributions