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/19735535

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 7.0 (GCMT) SOUTH SANDWICH ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2021-08-22 21:33:28
Location: SOUTH SANDWICH ISLANDS REGION
Latitude, Longitude: -60.570 °, -24.180 °
Magnitude: 7.0 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-08-22 21:33:20
Location: SOUTH SANDWICH ISLANDS REGION
Latitude, Longitude: -60.290 °, -24.880 °
Magnitude: 7.1 mww (us)
Depth: 14.0 km
Author: us,pt,at,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202108222133A
Timestamp: S-20211030024607
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 7.5
Depth Determination: FIX
Scalar Moment 3.631 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr-3.350.009
Mtt0.5750.009
Mpp2.770.009
Mrt-0.1290.033
Mrp0.3130.032
Mtp1.910.007
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T30023.881
N2105-0.505
P4784-3.381
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP13544-82
NP220547-97
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16139950
Mantle Waves168443125
Surface Waves16442450
Event Location
Source NDK
PDEW 2021/08/22 21:33:19.0 -60.28  -24.87   6.0 0.0 7.1 SOUTH SANDWICH ISLANDS R
C202108222133A   B:161  399  50 S:164  424  50 M:168  443 125 CMT: 1 TRIHD:  7.5
CENTROID:      9.4 0.0 -60.57 0.00  -24.18 0.00  12.0  0.0 FIX  S-20211030024607
26 -3.350 0.009  0.575 0.009  2.770 0.009 -0.129 0.033  0.313 0.032  1.910 0.007
V10   3.881  2 300  -0.505  5 210  -3.381 84  47   3.631  35 44  -82 205 47  -97

				
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 7.0 SOUTH SANDWICH ISLANDS REGIONIRIS
Source Time FunctionSource Time Function for mww 7.1 SOUTH SANDWICH ISLANDS REGIONIncorporated Research Institutions for Seismology
Back ProjectionsBack Projections for mww 7.1 SOUTH SANDWICH ISLANDS REGIONIncorporated Research Institutions for Seismology
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 7.0 SOUTH SANDWICH ISLANDS REGIONIncorporated Research Institutions for Seismology
GMVGMV for mww 7.1 SOUTH SANDWICH ISLANDS REGIONIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 7.1 SOUTH SANDWICH ISLANDS REGIONIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 7.1 SOUTH SANDWICH ISLANDS REGIONIncorporated Research Institutions for Seismology
AftershocksAftershocks for mww 7.1 SOUTH SANDWICH ISLANDS REGIONIRIS DMC
Contributions