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/21738903

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 6.9 (GCMT) MOROCCO icon
Centroid Event
Date-Time (UTC): 2023-09-08 22:11:06
Location: MOROCCO
Latitude, Longitude: 30.940 °, -8.310 °
Magnitude: 6.9 MW
Depth: 23.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2023-09-08 22:11:01
Location: MOROCCO
Latitude, Longitude: 31.055 °, -8.389 °
Magnitude: 6.8 mww (us)
Depth: 19.0 km
Author: us,usauto,pt,at
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202309082211A
Timestamp: S-20231129204552
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 6.6
Depth Determination: FREE
Scalar Moment 2.487 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr1.510.006
Mtt-1.80.005
Mpp0.2930.004
Mrt-1.720.015
Mrp-0.6060.011
Mtp0.2510.004
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T142622.442
N263160.093
P36023-2.532
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP111826128
NP22577073
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16244350
Mantle Waves162401125
Surface Waves15844350
Event Location
Source NDK
PDEW 2023/09/08 22:11:01.4  31.06   -8.39  19.0 0.0 6.8 MOROCCO                 
C202309082211A   B:162  443  50 S:158  443  50 M:162  401 125 CMT: 1 TRIHD:  6.6
CENTROID:      5.3 0.0  30.94 0.00   -8.31 0.00  23.8  0.1 FREE S-20231129204552
26  1.510 0.006 -1.800 0.005  0.293 0.004 -1.720 0.015 -0.606 0.011  0.251 0.004
V10   2.442 62 142   0.093 16 263  -2.532 23 360   2.487 118 26  128 257 70   73
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.9 MOROCCOIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.9 MOROCCOIncorporated Research Institutions for Seismology
Back ProjectionsBack Projections for mww 6.8 MOROCCOIRIS DMC
EQ EnergyEQ Energy for mww 6.8 MOROCCOIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.8 MOROCCOIncorporated Research Institutions for Seismology
GMVGMV for mww 6.8 MOROCCOIncorporated Research Institutions for Seismology
Contributions