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 6.8 (GCMT) KYUSHU, JAPAN icon
Centroid Event
Date-Time (UTC): 2025-01-13 12:19:40
Location: KYUSHU, JAPAN
Latitude, Longitude: 31.780 °, 131.820 °
Magnitude: 6.8 MW
Depth: 34.2 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-01-13 12:19:32
Location: KYUSHU, JAPAN
Latitude, Longitude: 31.853 °, 131.530 °
Magnitude: 6.8 mww (us)
Depth: 39.0 km
Author: at,pt,us,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202501131219A
Timestamp: S-20250331225652
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 6.0
Depth Determination: FREE
Scalar Moment 1.822 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr1.370.006
Mtt-0.3660.004
Mpp-1.00.004
Mrt0.6910.008
Mrp0.9930.009
Mtp-0.5910.003
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T308691.831
N2132-0.015
P12221-1.812
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12082485
NP2336692
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16443850
Mantle Waves157344125
Surface Waves17243650
Event Location
Source NDK
PDEW 2025/01/13 12:19:32.2  31.83  131.55  39.0 0.0 6.8 KYUSHU, JAPAN           
C202501131219A   B:164  438  50 S:172  436  50 M:157  344 125 CMT: 1 TRIHD:  6.0
CENTROID:      8.5 0.0  31.78 0.00  131.82 0.00  34.2  0.2 FREE S-20250331225652
26  1.370 0.006 -0.366 0.004 -1.000 0.004  0.691 0.008  0.993 0.009 -0.591 0.003
V10   1.831 69 308  -0.015  2 213  -1.812 21 122   1.822 208 24   85  33 66   92
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.8 KYUSHU, JAPANIRIS
Back ProjectionsBack Projections for mww 6.8 KYUSHU, JAPANIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.8 KYUSHU, JAPANIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 6.8 KYUSHU, JAPANIncorporated Research Institutions for Seismology
GMVGMV for mww 6.8 KYUSHU, JAPANIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.8 KYUSHU, JAPANIncorporated Research Institutions for Seismology
Contributions