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/20313775

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) SOUTHEAST OF LOYALTY ISLANDS icon
Centroid Event
Date-Time (UTC): 2022-03-31 05:44:15
Location: SOUTHEAST OF LOYALTY ISLANDS
Latitude, Longitude: -22.490 °, 170.440 °
Magnitude: 6.9 MW
Depth: 23.2 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2022-03-31 05:44:01
Location: SOUTHEAST OF LOYALTY ISLANDS
Latitude, Longitude: -22.586 °, 170.375 °
Magnitude: 7.0 Mww (us)
Depth: 10.0 km
Author: at,us,pt,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202203310544A
Timestamp: S-20220531204157
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 7.1
Depth Determination: FREE
Scalar Moment 3.122 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr2.70.008
Mtt-2.070.006
Mpp-0.6220.006
Mrt1.480.014
Mrp-0.4560.013
Mtp1.170.005
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T7743.126
N11650.001
P20815-3.119
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP130531100
NP21136084
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves17347250
Mantle Waves169438125
Surface Waves17543750
Event Location
Source NDK
PDEW 2022/03/31 05:44:01.1 -22.59  170.37  10.0 0.0 7.0 SOUTHEAST OF LOYALTY ISL
C202203310544A   B:173  472  50 S:175  437  50 M:169  438 125 CMT: 1 TRIHD:  7.1
CENTROID:     14.3 0.0 -22.49 0.00  170.44 0.00  23.2  0.1 FREE S-20220531204157
26  2.700 0.008 -2.070 0.006 -0.622 0.006  1.480 0.014 -0.456 0.013  1.170 0.005
V10   3.126 74   7   0.001  5 116  -3.119 15 208   3.122 305 31  100 113 60   84
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Back ProjectionsBack Projections for Mww 7.0 SOUTHEAST OF LOYALTY ISLANDSIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.9 SOUTHEAST OF LOYALTY ISLANDSIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for Mww 7.0 SOUTHEAST OF LOYALTY ISLANDSIncorporated Research Institutions for Seismology
GMVGMV for Mww 7.0 SOUTHEAST OF LOYALTY ISLANDSIncorporated Research Institutions for Seismology
AftershocksAftershocks for Mww 7.0 SOUTHEAST OF LOYALTY ISLANDSIRIS DMC
Contributions