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/20909859

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 7.3 (GCMT) TONGA ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2022-11-11 10:48:56
Location: TONGA ISLANDS REGION
Latitude, Longitude: -19.240 °, -172.010 °
Magnitude: 7.3 MW
Depth: 51.2 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2022-11-11 10:48:46
Location: TONGA ISLANDS REGION
Latitude, Longitude: -19.287 °, -172.149 °
Magnitude: 7.3 Mww (us)
Depth: 37.0 km
Author: us,at,pt,at,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202211111048A
Timestamp: S-20230129212538
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 10.8
Depth Determination: FREE
Scalar Moment 1.091 e+27 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 27, Units: dyne-cm)
ComponentValueError
Mrr1.080.003
Mtt-0.1960.002
Mpp-0.8810.002
Mrt-0.0620.006
Mrp-0.0790.006
Mtp-0.4360.002
Principal Axes (Length Exponent: 27, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T140871.085
N2610.016
P2963-1.097
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1254288
NP22074892
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves17949450
Mantle Waves177469150
Surface Waves17845750
Event Location
Source NDK
PDEW 2022/11/11 10:48:46.7 -19.29 -172.15  37.0 0.0 7.3 TONGA ISLANDS REGION    
C202211111048A   B:179  494  50 S:178  457  50 M:177  469 150 CMT: 1 TRIHD: 10.8
CENTROID:      9.9 0.1 -19.24 0.01 -172.01 0.00  51.2  0.2 FREE S-20230129212538
27  1.080 0.003 -0.196 0.002 -0.881 0.002 -0.062 0.006 -0.079 0.006 -0.436 0.002
V10   1.085 87 140   0.016  1  26  -1.097  3 296   1.091  25 42   88 207 48   92
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 7.3 TONGA ISLANDS REGIONIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 7.3 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for Mww 7.3 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
Back ProjectionsBack Projections for Mww 7.3 TONGA ISLANDS REGIONIRIS DMC
GMVGMV for Mww 7.3 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
AftershocksAftershocks for Mww 7.3 TONGA ISLANDS REGIONIRIS DMC
Event PlotsEvent Plots for Mww 7.3 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
Contributions