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/19116995

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 7.1 (GCMT) NEAR EAST COAST OF HONSHU, JAPAN icon
Centroid Event
Date-Time (UTC): 2021-03-20 09:09:52
Location: NEAR EAST COAST OF HONSHU, JAPAN
Latitude, Longitude: 38.380 °, 141.770 °
Magnitude: 7.1 MW
Depth: 52.3 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-03-20 09:09:44
Location: NEAR EAST COAST OF HONSHU, JAPAN
Latitude, Longitude: 38.475 °, 141.633 °
Magnitude: 7.0 Mww (us)
Depth: 43.0 km
Author: at,us,usauto,pt
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202103200909A
Timestamp: S-20210530134700
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 8.3
Depth Determination: FREE
Scalar Moment 4.964 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr3.280.015
Mtt-0.1780.01
Mpp-3.10.011
Mrt1.410.023
Mrp3.40.027
Mtp-0.9490.007
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T297664.924
N20030.082
P10824-5.004
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP11922181
NP2216993
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves17850350
Mantle Waves173415150
Surface Waves18048350
Event Location
Source NDK
PDEW 2021/03/20 09:09:44.0  38.45  141.65  43.0 0.0 7.0 NEAR EAST COAST OF HONSH
C202103200909A   B:178  503  50 S:180  483  50 M:173  415 150 CMT: 1 TRIHD:  8.3
CENTROID:      8.1 0.1  38.38 0.00  141.77 0.01  52.3  0.3 FREE S-20210530134700
26  3.280 0.015 -0.178 0.010 -3.100 0.011  1.410 0.023  3.400 0.027 -0.949 0.007
V10   4.924 66 297   0.082  3 200  -5.004 24 108   4.964 192 21   81  21 69   93
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 7.1 NEAR EAST COAST OF HONSHU, JAPANIRIS
EQ EnergyEQ Energy for Mww 7.0 NEAR EAST COAST OF HONSHU, JAPANIncorporated Research Institutions for Seismology
GMVGMV for Mww 7.0 NEAR EAST COAST OF HONSHU, JAPANIncorporated Research Institutions for Seismology
Back ProjectionsBack Projections for Mww 7.0 NEAR EAST COAST OF HONSHU, JAPANIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for Mww 7.0 NEAR EAST COAST OF HONSHU, JAPANIncorporated Research Institutions for Seismology
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 7.1 NEAR EAST COAST OF HONSHU, JAPANIncorporated Research Institutions for Seismology
AftershocksAftershocks for Mww 7.0 NEAR EAST COAST OF HONSHU, JAPANIRIS DMC
Contributions