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/998605

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) WESTERN INDIAN-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2007-08-30 07:34:45
Location: WESTERN INDIAN-ANTARCTIC RIDGE
Latitude, Longitude: -49.580 °, 117.380 °
Magnitude: 5.1 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C200708300734A
Timestamp: S-20071128163308
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.9
Depth Determination: FIX
Scalar Moment 6.355 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-6.070.122
Mtt4.480.107
Mpp1.590.138
Mrt-0.260.345
Mrp1.40.396
Mtp-2.940.092
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T21346.386
N30310-0.061
P9879-6.325
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP129241-105
NP213250-77
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves466140
Mantle Waves000
Surface Waves8914750
Event Location
Source NDK
PDEW 2007/08/30 07:34:43.8 -49.58  117.40  10.0 5.0 0.0 WESTERN INDIAN-ANTARCTIC
C200708300734A   B: 46   61  40 S: 89  147  50 M:  0    0   0 CMT: 1 TRIHD:  0.9
CENTROID:      1.2 0.2 -49.58 0.01  117.38 0.02  12.0  0.0 FIX  S-20071128163308
23 -6.070 0.122  4.480 0.107  1.590 0.138 -0.260 0.345  1.400 0.396 -2.940 0.092
V10   6.386  4 213  -0.061 10 303  -6.325 79  98   6.355 292 41 -105 132 50  -77
Other Formats
Contributions