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/18016703

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) PACIFIC-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2019-07-12 18:05:55
Location: PACIFIC-ANTARCTIC RIDGE
Latitude, Longitude: -54.700 °, -131.430 °
Magnitude: 5.0 MW
Depth: 14.9 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C201907121805A
Timestamp: S-20190929160444
CMT Version: Final
NDK Version: V10
Reference Catalog: SWEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.8
Depth Determination: FREE
Scalar Moment 3.915 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.4440.111
Mtt2.910.134
Mpp-2.470.108
Mrt0.3570.2
Mrp1.070.231
Mtp2.60.086
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T33794.082
N21672-0.337
P6915-3.749
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP111373-4
NP220486-163
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves333840
Mantle Waves000
Surface Waves11016250
Event Location
Source NDK
SWEQ 2019/07/12 18:05:52.0 -55.00 -131.00  10.0 0.0 5.1 PACIFIC-ANTARCTIC RIDGE 
C201907121805A   B: 33   38  40 S:110  162  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:      3.2 0.2 -54.70 0.01 -131.43 0.02  14.9  1.5 FREE S-20190929160444
23 -0.444 0.111  2.910 0.134 -2.470 0.108  0.357 0.200  1.070 0.231  2.600 0.086
V10   4.082  9 337  -0.337 72 216  -3.749 15  69   3.915 113 73   -4 204 86 -163
Other Formats
Contributions