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/16409352

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) SOUTHERN CALIFORNIA (Inactive) icon
Centroid Event
Date-Time (UTC): 2018-04-05 19:29:19
Location: SOUTHERN CALIFORNIA
Latitude, Longitude: 33.860 °, -119.770 °
Magnitude: 5.4 MW
Depth: 13.5 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2018-04-05 19:29:16
Location: SOUTHERN CALIFORNIA
Latitude, Longitude: 33.838 °, -119.726 °
Magnitude: 5.3 Mww (us)
Depth: 9.87 km
Author: ci,at,us
Catalog, Contributor: NEIC PDE, ci
Related Products:
CMT Details
Event ID C201804051929A
Timestamp: Q-20180405195327
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.2
Depth Determination: FREE
Scalar Moment 1.629 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr-0.1310.019
Mtt-0.5430.021
Mpp0.6740.023
Mrt0.5310.057
Mrp-0.030.043
Mtp1.410.02
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T30591.643
N6170-0.028
P21217-1.615
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP134971-174
NP225784-19
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves11819340
Mantle Waves000
Surface Waves15829050
Event Location
Source NDK
PDEQ 2018/04/05 19:29:16.5  33.84 -119.73   9.9 0.0 5.3 SOUTHERN CALIFORNIA     
C201804051929A   B:118  193  40 S:158  290  50 M:  0    0   0 CMT: 1 TRIHD:  1.2
CENTROID:      3.3 0.2  33.86 0.01 -119.77 0.01  13.5  0.9 FREE Q-20180405195327
24 -0.131 0.019 -0.543 0.021  0.674 0.023  0.531 0.057 -0.030 0.043  1.410 0.020
V10   1.643  9 305  -0.028 70  61  -1.615 17 212   1.629 349 71 -174 257 84  -19
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Moment TensorMoment Tensor for MW 5.4 (GCMT) SOUTHERN CALIFORNIAIRIS DMC
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 5.4 SOUTHERN CALIFORNIAIRIS
GMVGMV for Mww 5.4 SOUTHERN CALIFORNIAIRIS DMC
Contributions