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/18048586

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 4.8 (GCMT) PACIFIC-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2019-10-16 22:53:35
Location: PACIFIC-ANTARCTIC RIDGE
Latitude, Longitude: -54.370 °, -132.540 °
Magnitude: 4.8 MW
Depth: 23.5 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C201910162253A
Timestamp: S-20200204232507
CMT Version: Final
NDK Version: V10
Reference Catalog: SWEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.6
Depth Determination: FREE
Scalar Moment 1.942 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.0750.139
Mtt0.9090.133
Mpp-0.8340.105
Mrt0.3410.172
Mrp0.6230.16
Mtp1.590.077
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T328162.031
N18669-0.177
P6112-1.854
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1105703
NP21487160
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves232540
Mantle Waves000
Surface Waves778850
Event Location
Source NDK
SWEQ 2019/10/16 22:53:36.0 -54.75 -132.75  10.0 0.0 4.8 PACIFIC-ANTARCTIC RIDGE 
C201910162253A   B: 23   25  40 S: 77   88  50 M:  0    0   0 CMT: 1 TRIHD:  0.6
CENTROID:     -0.7 0.3 -54.37 0.02 -132.54 0.03  23.5  2.5 FREE S-20200204232507
23 -0.075 0.139  0.909 0.133 -0.834 0.105  0.341 0.172  0.623 0.160  1.590 0.077
V10   2.031 16 328  -0.177 69 186  -1.854 12  61   1.942 105 70    3  14 87  160
Other Formats
Contributions