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/18630264

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) SOUTH SHETLAND ISLANDS icon
Centroid Event
Date-Time (UTC): 2020-08-29 12:47:05
Location: SOUTH SHETLAND ISLANDS
Latitude, Longitude: -62.400 °, -58.170 °
Magnitude: 5.0 MW
Depth: 24.3 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2020-08-29 12:47:02
Location: SOUTH SHETLAND ISLANDS
Latitude, Longitude: -62.418 °, -58.235 °
Magnitude: 5.0 Mww (us)
Depth: 1.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202008291247A
Timestamp: S-20201209092402
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.8
Depth Determination: FREE
Scalar Moment 3.971 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.1810.151
Mtt1.60.122
Mpp-1.420.152
Mrt-0.1570.247
Mrp-1.030.298
Mtp3.520.092
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T146104.038
N1875-0.135
P23812-3.904
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP128175-2
NP21288-165
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves374240
Mantle Waves000
Surface Waves10013650
Event Location
Source NDK
PDEW 2020/08/29 12:47:03.8 -62.44  -58.18  10.0 0.0 5.0 SOUTH SHETLAND ISLANDS  
C202008291247A   B: 37   42  40 S:100  136  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:      1.9 0.2 -62.40 0.01  -58.17 0.04  24.3  1.1 FREE S-20201209092402
23 -0.181 0.151  1.600 0.122 -1.420 0.152 -0.157 0.247 -1.030 0.298  3.520 0.092
V10   4.038 10 146  -0.135 75  18  -3.904 12 238   3.971 281 75   -2  12 88 -165
Other Formats
Contributions