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/19514546

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 5.1 (GCMT) PACIFIC-ANTARCTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2021-07-08 23:04:22
Location: PACIFIC-ANTARCTIC RIDGE
Latitude, Longitude: -56.230 °, -143.590 °
Magnitude: 5.1 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-07-08 23:04:21
Location: PACIFIC-ANTARCTIC RIDGE
Latitude, Longitude: -56.195 °, -143.592 °
Magnitude: 5.0 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202107082304A
Timestamp: S-20211026102206
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 5.504 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr0.6430.218
Mtt3.480.188
Mpp-4.120.196
Mrt2.220.568
Mrp-2.520.613
Mtp2.390.177
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T352244.811
N120551.39
P25025-6.197
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP13155-179
NP230190-35
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves161840
Mantle Waves000
Surface Waves789350
Event Location
Source NDK
PDEW 2021/07/08 23:04:21.2 -56.19 -143.59  10.0 0.0 5.0 PACIFIC-ANTARCTIC RIDGE 
C202107082304A   B: 16   18  40 S: 78   93  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:      1.0 0.3 -56.23 0.02 -143.59 0.03  12.0  0.0 FIX  S-20211026102206
23  0.643 0.218  3.480 0.188 -4.120 0.196  2.220 0.568 -2.520 0.613  2.390 0.177
V10   4.811 24 352   1.390 55 120  -6.197 25 250   5.504  31 55 -179 301 90  -35
Other Formats
Contributions