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/9617498

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 4.9 (GCMT) IONIAN SEA icon
Centroid Event
Date-Time (UTC): 2014-03-05 12:49:22
Location: IONIAN SEA
Latitude, Longitude: 37.970 °, 20.270 °
Magnitude: 4.9 MW
Depth: 17.7 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2014-03-05 12:49:21
Location: GREECE
Latitude, Longitude: 38.110 °, 20.352 °
Magnitude: 4.9 mwr (null)
Depth: 11.6 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201403051249A
Timestamp: S-20140606235155
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.7
Depth Determination: FREE
Scalar Moment 2.971 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.9530.206
Mtt3.260.171
Mpp-2.310.119
Mrt0.2950.308
Mrp0.6450.352
Mtp-0.5030.104
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T533.318
N26768-0.697
P9622-2.624
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP113872-14
NP223277-162
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves4440
Mantle Waves000
Surface Waves9412950
Event Location
Source NDK
PDEW 2014/03/05 12:49:21.2  38.11   20.35  11.6 0.0 4.9 GREECE                  
C201403051249A   B:  4    4  40 S: 94  129  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:      1.3 0.4  37.97 0.02   20.27 0.02  17.7  2.0 FREE S-20140606235155
23 -0.953 0.206  3.260 0.171 -2.310 0.119  0.295 0.308  0.645 0.352 -0.503 0.104
V10   3.318  3   5  -0.697 68 267  -2.624 22  96   2.971 138 72  -14 232 77 -162
Other Formats
Contributions