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/883155

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 6.6 (GCMT) SOUTHERN CALIFORNIA icon
Centroid Event
Date-Time (UTC): 1994-01-17 12:31:03
Location: SOUTHERN CALIFORNIA
Latitude, Longitude: 34.440 °, -118.640 °
Magnitude: 6.6 MW
Depth: 16.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C011794B
Timestamp: O-00000000000000
CMT Version: Final
NDK Version: V10
Reference Catalog: PDE
Source Zero Trace
Moment Rate Fn: BOXHD
Half Duration: 5.4
Depth Determination: FREE
Scalar Moment 1.18 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr1.0810.007
Mtt-0.9430.007
Mpp-0.1380.007
Mrt0.0540.024
Mrp-0.3990.025
Mtp0.4360.006
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T97731.2
N29716-0.05
P2056-1.15
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12784265
NP213053111
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves4311845
Mantle Waves4283135
Surface Waves000
Event Location
Source NDK
PDE  1994/01/17 12:30:55.3  34.21 -118.54  18.0 6.4 6.8 SOUTHERN CALIFORNIA     
C011794B         B: 43  118  45 S:  0    0   0 M: 42   83 135 CMT: 1 BOXHD:  5.4
CENTROID:      8.2 0.1  34.44 0.01 -118.64 0.01  16.8  0.4 FREE O-00000000000000
26  1.081 0.007 -0.943 0.007 -0.138 0.007  0.054 0.024 -0.399 0.025  0.436 0.006
V10   1.200 73  97  -0.050 16 297  -1.150  6 205   1.180 278 42   65 130 53  111
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.6 SOUTHERN CALIFORNIAIRIS DMC
EQ EnergyEQ Energy for mw 6.7 SOUTHERN CALIFORNIAIRIS DMC
Contributions