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/16621204

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 5.6 (GCMT) SOUTH SHETLAND ISLANDS (Inactive) icon
Centroid Event
Date-Time (UTC): 2018-08-27 20:09:27
Location: SOUTH SHETLAND ISLANDS
Latitude, Longitude: -61.790 °, -58.400 °
Magnitude: 5.6 MW
Depth: 54.7 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2018-08-27 20:09:21
Location: SOUTH SHETLAND ISLANDS
Latitude, Longitude: -61.794 °, -58.049 °
Magnitude: 5.6 Mww (us)
Depth: 49.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C201808272009A
Timestamp: Q-20180827200043
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.5
Depth Determination: FREE
Scalar Moment 3.147 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr1.730.035
Mtt-2.120.032
Mpp0.3910.04
Mrt-0.6450.032
Mrp-1.340.04
Mtp1.970.03
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T118473.092
N300420.111
P2091-3.202
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12655837
NP215359142
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves12823540
Mantle Waves4549125
Surface Waves14124650
Event Location
Source NDK
PDEQ 2018/08/27 20:09:22.6 -61.76  -58.12  47.8 0.0 5.6 SOUTH SHETLAND ISLANDS  
C201808272009A   B:128  235  40 S:141  246  50 M: 45   49 125 CMT: 1 TRIHD:  1.5
CENTROID:      4.4 0.1 -61.79 0.01  -58.40 0.02  54.7  0.7 FREE Q-20180827200043
24  1.730 0.035 -2.120 0.032  0.391 0.040 -0.645 0.032 -1.340 0.040  1.970 0.030
V10   3.092 47 118   0.111 42 300  -3.202  1 209   3.147 265 58   37 153 59  142
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 5.6 SOUTH SHETLAND ISLANDSIRIS
Moment TensorMoment Tensor for MW 5.6 (GCMT) SOUTH SHETLAND ISLANDSIRIS DMC
Contributions