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/19514324

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) BALLENY ISLANDS REGION icon
Centroid Event
Date-Time (UTC): 2021-07-03 22:32:59
Location: BALLENY ISLANDS REGION
Latitude, Longitude: -64.490 °, 176.040 °
Magnitude: 5.0 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-07-03 22:32:58
Location: BALLENY ISLANDS REGION
Latitude, Longitude: -64.555 °, 175.903 °
Magnitude: 4.7 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202107032232A
Timestamp: S-20210928204543
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 3.962 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-1.150.112
Mtt4.110.082
Mpp-2.960.104
Mrt-1.70.285
Mrp0.7840.323
Mtp-0.0260.097
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T182174.62
N30460-1.316
P8424-3.303
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP122561-175
NP213285-29
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves333940
Mantle Waves000
Surface Waves11515550
Event Location
Source NDK
PDEW 2021/07/03 22:32:58.8 -64.56  175.90  10.0 0.0 4.7 BALLENY ISLANDS REGION  
C202107032232A   B: 33   39  40 S:115  155  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:      0.9 0.2 -64.49 0.01  176.04 0.04  12.0  0.0 FIX  S-20210928204543
23 -1.150 0.112  4.110 0.082 -2.960 0.104 -1.700 0.285  0.784 0.323 -0.026 0.097
V10   4.620 17 182  -1.316 60 304  -3.303 24  84   3.962 225 61 -175 132 85  -29
Other Formats
Contributions