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:


When citing this Moment Tensor page please use the Digital Object Identifier (DOI):


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 6.9 (GCMT) HAWAII icon
Centroid Event
Date-Time (UTC): 2018-05-04 22:33:10
Location: HAWAII
Latitude, Longitude: 19.120 °, -154.760 °
Magnitude: 6.9 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Date-Time (UTC): 2018-05-04 22:32:54
Location: HAWAII
Latitude, Longitude: 19.313 °, -154.998 °
Magnitude: 6.9 Mw (HV)
Depth: 2.06 km
Author: hv,us,pt,at
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C201805042232A
Timestamp: S-20180729212049
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 6.7
Depth Determination: FIX
Scalar Moment 2.634 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16337550
Mantle Waves166399125
Surface Waves16944650
Event Location
Source NDK
PDEW 2018/05/04 22:32:54.4  19.31 -155.00   2.1 0.0 6.9 HAWAII                  
C201805042232A   B:163  375  50 S:169  446  50 M:166  399 125 CMT: 1 TRIHD:  6.7
CENTROID:     16.2 0.0  19.12 0.00 -154.76 0.00  12.0  0.0 FIX  S-20180729212049
26  1.530 0.004 -0.896 0.004 -0.638 0.004  1.340 0.015  1.660 0.014 -0.783 0.004
V10   2.637 62 303  -0.010  5  43  -2.631 27 135   2.634 238 19  106  41 72   85

Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.9 HAWAIIIRIS
Back ProjectionsBack Projections for Mw 6.9 HAWAIIIRIS DMC
Event PlotsEvent Plots for Mw 6.9 HAWAIIIRIS DMC
EQ EnergyEQ Energy for Mw 6.9 HAWAIIIRIS DMC
AftershocksAftershocks for Mw 6.9 HAWAIIIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.9 HAWAIIIRIS DMC