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/23052100

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 6.5 (GCMT) TONGA ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2024-10-01 20:05:43
Location: TONGA ISLANDS REGION
Latitude, Longitude: -19.350 °, -172.610 °
Magnitude: 6.5 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2024-10-01 20:05:34
Location: TONGA ISLANDS
Latitude, Longitude: -19.289 °, -173.001 °
Magnitude: 6.6 mww (us)
Depth: 10.0 km
Author: us,pt,at,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202410012005A
Timestamp: S-20241229193532
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 4.5
Depth Determination: FIX
Scalar Moment 0.806 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr-0.7480.002
Mtt-0.0110.002
Mpp0.7590.002
Mrt-0.0840.007
Mrp-0.0650.007
Mtp0.2770.002
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T10830.853
N1985-0.095
P34784-0.758
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP119342-98
NP22348-83
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16239550
Mantle Waves168364125
Surface Waves17647250
Event Location
Source NDK
PDEW 2024/10/01 20:05:35.0 -19.29 -173.00  10.0 0.0 6.6 TONGA ISLANDS           
C202410012005A   B:162  395  50 S:176  472  50 M:168  364 125 CMT: 1 TRIHD:  4.5
CENTROID:      8.6 0.0 -19.35 0.00 -172.61 0.00  12.0  0.0 FIX  S-20241229193532
26 -0.748 0.002 -0.011 0.002  0.759 0.002 -0.084 0.007 -0.065 0.007  0.277 0.002
V10   0.853  3 108  -0.095  5 198  -0.758 84 347   0.806 193 42  -98  23 48  -83
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.5 TONGA ISLANDS REGIONIRIS
Back ProjectionsBack Projections for mww 6.6 TONGA ISLANDS REGIONIRIS DMC
GMVGMV for mww 6.6 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.6 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.5 TONGA ISLANDS REGIONIncorporated Research Institutions for Seismology
Contributions