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/18991766

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 5.0 (GCMT) GREENLAND SEA icon
Centroid Event
Date-Time (UTC): 2021-01-13 23:12:00
Location: GREENLAND SEA
Latitude, Longitude: 73.510 °, 7.760 °
Magnitude: 5.0 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-01-13 23:11:55
Location: GREENLAND SEA
Latitude, Longitude: 73.588 °, 7.950 °
Magnitude: 4.4 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202101132311A
Timestamp: S-20210413183459
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.8
Depth Determination: FIX
Scalar Moment 3.729 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-3.630.068
Mtt1.240.072
Mpp2.40.062
Mrt-0.9420.283
Mrp-0.3280.247
Mtp1.640.056
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T12663.651
N21780.165
P35979-3.806
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP120739-103
NP24452-79
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves425140
Mantle Waves000
Surface Waves13122150
Event Location
Source NDK
PDEW 2021/01/13 23:11:55.1  73.59    7.95  10.0 0.0 4.4 GREENLAND SEA           
C202101132311A   B: 42   51  40 S:131  221  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:      5.1 0.2  73.51 0.02    7.76 0.04  12.0  0.0 FIX  S-20210413183459
23 -3.630 0.068  1.240 0.072  2.400 0.062 -0.942 0.283 -0.328 0.247  1.640 0.056
V10   3.651  6 126   0.165  8 217  -3.806 79 359   3.729 207 39 -103  44 52  -79
Other Formats
Contributions