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/1037911

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) BALLENY ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2012-07-17 20:06:13
Location: BALLENY ISLANDS REGION
Latitude, Longitude: -65.040 °, 177.470 °
Magnitude: 5.2 MW
Depth: 26.2 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C201207172006B
Timestamp: S-20121015095228
CMT Version: Final
NDK Version: V10
Reference Catalog: SWEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.9
Depth Determination: FREE
Scalar Moment 7.061 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.7950.268
Mtt5.910.233
Mpp-5.120.204
Mrt-5.420.545
Mrp0.270.415
Mtp-0.6410.165
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T183298.964
N761-3.811
P2741-5.158
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP13236920
NP222571158
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves282940
Mantle Waves000
Surface Waves8411350
Event Location
Source NDK
SWEQ 2012/07/17 20:06:08.0 -64.75  177.25  10.0 0.0 5.0 BALLENY ISLANDS REGION  
C201207172006B   B: 28   29  40 S: 84  113  50 M:  0    0   0 CMT: 1 TRIHD:  0.9
CENTROID:      5.3 0.3 -65.04 0.02  177.47 0.04  26.2  1.5 FREE S-20121015095228
23 -0.795 0.268  5.910 0.233 -5.120 0.204 -5.420 0.545  0.270 0.415 -0.641 0.165
V10   8.964 29 183  -3.811 61   7  -5.158  1 274   7.061 323 69   20 225 71  158
Other Formats
Contributions