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/1088182

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 5.4 (GCMT) BALLENY ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2012-12-31 20:02:09
Location: BALLENY ISLANDS REGION
Latitude, Longitude: -61.490 °, 154.180 °
Magnitude: 5.4 MW
Depth: 12.6 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2012-12-31 20:02:04
Location: BALLENY ISLANDS REGION
Latitude, Longitude: -61.623 °, 154.301 °
Magnitude: 5.2 mb (US)
Depth: 10.0 km
Author: US
Catalog, Contributor: NEIC PDE, US
CMT Details
Event ID C201212312002A
Timestamp: S-20130327213206
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.2
Depth Determination: FREE
Scalar Moment 1.446 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr-0.1120.025
Mtt1.070.026
Mpp-0.960.026
Mrt-0.1310.055
Mrp0.2880.067
Mtp-0.9790.024
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T20381.498
N33277-0.107
P11110-1.393
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP124777-179
NP215789-13
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves7711140
Mantle Waves000
Surface Waves9416550
Event Location
Source NDK
PDEW 2012/12/31 20:02:04.2 -61.62  154.30  10.0 5.2 4.9 BALLENY ISLANDS REGION  
C201212312002A   B: 77  111  40 S: 94  165  50 M:  0    0   0 CMT: 1 TRIHD:  1.2
CENTROID:      4.9 0.1 -61.49 0.01  154.18 0.02  12.6  1.2 FREE S-20130327213206
24 -0.112 0.025  1.070 0.026 -0.960 0.026 -0.131 0.055  0.288 0.067 -0.979 0.024
V10   1.498  8 203  -0.107 77 332  -1.393 10 111   1.446 247 77 -179 157 89  -13
Other Formats
Contributions