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/21503914

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) NORTH ATLANTIC OCEAN icon
Centroid Event
Date-Time (UTC): 2023-07-10 20:28:33
Location: NORTH ATLANTIC OCEAN
Latitude, Longitude: 20.240 °, -61.140 °
Magnitude: 6.6 MW
Depth: 25.2 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2023-07-10 20:28:26
Location: NORTH ATLANTIC OCEAN
Latitude, Longitude: 20.045 °, -61.068 °
Magnitude: 6.6 mww (us)
Depth: 14.0 km
Author: at,pt,us,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202307102028A
Timestamp: S-20230928220219
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 4.7
Depth Determination: FREE
Scalar Moment 8.906 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr-0.2870.029
Mtt2.210.027
Mpp-1.920.028
Mrt2.620.078
Mrp0.3240.074
Mtp-8.250.025
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T37129.031
N26673-0.248
P12913-8.78
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP117373-1
NP226389-163
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves15638350
Mantle Waves149337125
Surface Waves15939050
Event Location
Source NDK
PDEW 2023/07/10 20:28:26.2  20.06  -61.10  14.0 0.0 6.6 NORTH ATLANTIC OCEAN    
C202307102028A   B:156  383  50 S:159  390  50 M:149  337 125 CMT: 1 TRIHD:  4.7
CENTROID:      7.0 0.0  20.24 0.00  -61.14 0.00  25.2  0.2 FREE S-20230928220219
25 -0.287 0.029  2.210 0.027 -1.920 0.028  2.620 0.078  0.324 0.074 -8.250 0.025
V10   9.031 12  37  -0.248 73 266  -8.780 13 129   8.906 173 73   -1 263 89 -163

				
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.6 NORTH ATLANTIC OCEANIRIS
Back ProjectionsBack Projections for mww 6.6 NORTH ATLANTIC OCEANIRIS DMC
GMVGMV for mww 6.6 NORTH ATLANTIC OCEANIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.6 NORTH ATLANTIC OCEANIncorporated Research Institutions for Seismology
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.6 NORTH ATLANTIC OCEANIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 6.6 NORTH ATLANTIC OCEANIncorporated Research Institutions for Seismology
Contributions