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/9584535

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) SOUTHERN MID-ATLANTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2014-02-28 02:48:11
Location: SOUTHERN MID-ATLANTIC RIDGE
Latitude, Longitude: -15.570 °, -13.220 °
Magnitude: 5.1 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2014-02-28 02:48:08
Location: SOUTHERN MID-ATLANTIC RIDGE
Latitude, Longitude: -15.785 °, -13.068 °
Magnitude: 5.2 mb (null)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201402280248A
Timestamp: S-20140519100228
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 6.605 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-6.030.095
Mtt0.1520.098
Mpp5.880.086
Mrt2.540.304
Mrp-0.3670.271
Mtp-1.380.08
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T7556.27
N344190.673
P17870-6.941
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP118544-62
NP232853-115
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves9011240
Mantle Waves000
Surface Waves13623850
Event Location
Source NDK
PDEW 2014/02/28 02:48:08.5 -15.78  -13.07  10.0 0.0 5.2 SOUTHERN MID-ATLANTIC RI
C201402280248A   B: 90  112  40 S:136  238  50 M:  0    0   0 CMT: 1 TRIHD:  0.9
CENTROID:      2.8 0.1 -15.57 0.01  -13.22 0.01  12.0  0.0 FIX  S-20140519100228
23 -6.030 0.095  0.152 0.098  5.880 0.086  2.540 0.304 -0.367 0.271 -1.380 0.080
V10   6.270  5  75   0.673 19 344  -6.941 70 178   6.605 185 44  -62 328 53 -115
Other Formats
Contributions