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

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 6.2 (GCMT) RAT ISLANDS, ALEUTIAN ISLANDS icon
Centroid Event
Date-Time (UTC): 2022-12-14 18:40:29
Location: RAT ISLANDS, ALEUTIAN ISLANDS
Latitude, Longitude: 51.740 °, 178.780 °
Magnitude: 6.2 MW
Depth: 75.3 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2022-12-14 18:40:26
Location: RAT ISLANDS, ALEUTIAN ISLANDS
Latitude, Longitude: 51.608 °, 178.597 °
Magnitude: 6.3 Mww (us)
Depth: 73.0 km
Author: at,us,usauto,pt,ak
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202212141840A
Timestamp: S-20230228214426
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 3.2
Depth Determination: FREE
Scalar Moment 2.936 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr0.420.012
Mtt-1.930.013
Mpp1.510.013
Mrt0.0920.011
Mrp-1.820.01
Mtp-1.560.011
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T72323.209
N22555-0.545
P33413-2.664
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP110958165
NP22077733
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16241340
Mantle Waves143250125
Surface Waves16942550
Event Location
Source NDK
PDEW 2022/12/14 18:40:26.9  51.61  178.60  73.0 0.0 6.3 RAT ISLANDS, ALEUTIAN IS
C202212141840A   B:162  413  40 S:169  425  50 M:143  250 125 CMT: 1 TRIHD:  3.2
CENTROID:      3.0 0.0  51.74 0.00  178.78 0.00  75.3  0.4 FREE S-20230228214426
25  0.420 0.012 -1.930 0.013  1.510 0.013  0.092 0.011 -1.820 0.010 -1.560 0.011
V10   3.209 32  72  -0.545 55 225  -2.664 13 334   2.936 109 58  165 207 77   33
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.2 RAT ISLANDS, ALEUTIAN ISLANDSIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.2 RAT ISLANDS, ALEUTIAN ISLANDSIncorporated Research Institutions for Seismology
GMVGMV for Mww 6.3 RAT ISLANDS, ALEUTIAN ISLANDSIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for Mww 6.3 RAT ISLANDS, ALEUTIAN ISLANDSIncorporated Research Institutions for Seismology
Contributions