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/21302596

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 6.1 (GCMT) HOKKAIDO, JAPAN REGION icon
Centroid Event
Date-Time (UTC): 2023-03-28 09:18:31
Location: HOKKAIDO, JAPAN REGION
Latitude, Longitude: 41.150 °, 142.850 °
Magnitude: 6.1 MW
Depth: 39.6 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2023-03-28 09:18:28
Location: HOKKAIDO, JAPAN REGION
Latitude, Longitude: 41.148 °, 142.805 °
Magnitude: 6.0 Mww (us)
Depth: 34.0 km
Author: us,usauto,at,pt
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202303280918A
Timestamp: S-20230530010142
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.7
Depth Determination: FREE
Scalar Moment 1.755 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr1.10.009
Mtt0.0280.007
Mpp-1.130.008
Mrt0.5360.01
Mrp1.210.013
Mtp-0.30.006
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T302651.715
N19960.077
P10724-1.795
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP11852174
NP2227096
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16036840
Mantle Waves124177125
Surface Waves16939550
Event Location
Source NDK
PDEW 2023/03/28 09:18:28.5  41.14  142.82  37.0 0.0 6.0 HOKKAIDO, JAPAN REGION  
C202303280918A   B:160  368  40 S:169  395  50 M:124  177 125 CMT: 1 TRIHD:  2.7
CENTROID:      2.9 0.1  41.15 0.00  142.85 0.01  39.6  0.3 FREE S-20230530010142
25  1.100 0.009  0.028 0.007 -1.130 0.008  0.536 0.010  1.210 0.013 -0.300 0.006
V10   1.715 65 302   0.077  6 199  -1.795 24 107   1.755 185 21   74  22 70   96
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.1 HOKKAIDO, JAPAN REGIONIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.1 HOKKAIDO, JAPAN REGIONIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for Mww 6.2 HOKKAIDO, JAPAN REGIONIncorporated Research Institutions for Seismology
GMVGMV for Mww 6.2 HOKKAIDO, JAPAN REGIONIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for Mww 6.2 HOKKAIDO, JAPAN REGIONIncorporated Research Institutions for Seismology
Contributions