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/18000563

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) IONIAN SEA icon
Centroid Event
Date-Time (UTC): 2018-10-25 22:54:58
Location: IONIAN SEA
Latitude, Longitude: 37.270 °, 20.600 °
Magnitude: 6.8 MW
Depth: 16.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2018-10-25 22:54:52
Location: IONIAN SEA
Latitude, Longitude: 37.515 °, 20.564 °
Magnitude: 6.8 Mww (us)
Depth: 14.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C201810252254A
Timestamp: S-20190212114053
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 5.2
Depth Determination: FIX
Scalar Moment 2.321 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr0.3860.005
Mtt0.2750.005
Mpp-0.6610.004
Mrt1.760.016
Mrp-0.9630.016
Mtp1.090.004
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T357452.093
N118270.456
P22733-2.549
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP11128165
NP21148363
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16339550
Mantle Waves159353125
Surface Waves17440050
Event Location
Source NDK
PDEW 2018/10/25 22:54:52.6  37.52   20.56  14.0 0.0 6.8 IONIAN SEA              
C201810252254A   B:163  395  50 S:174  400  50 M:159  353 125 CMT: 1 TRIHD:  5.2
CENTROID:      6.3 0.0  37.27 0.00   20.60 0.00  16.0  0.0 FIX  S-20190212114053
26  0.386 0.005  0.275 0.005 -0.661 0.004  1.760 0.016 -0.963 0.016  1.090 0.004
V10   2.093 45 357   0.456 27 118  -2.549 33 227   2.321  11 28  165 114 83   63
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.8 IONIAN SEAIRIS
Back ProjectionsBack Projections for Mww 6.8 IONIAN SEAIRIS DMC
GMVGMV for Mww 6.8 IONIAN SEAIRIS DMC
EQ EnergyEQ Energy for Mww 6.8 IONIAN SEAIRIS DMC
Event PlotsEvent Plots for Mww 6.8 IONIAN SEAIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.8 IONIAN SEAIRIS DMC
Contributions