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/14843359

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) NORTHWESTERN IRAN icon
Centroid Event
Date-Time (UTC): 2017-08-27 23:14:52
Location: NORTHWESTERN IRAN
Latitude, Longitude: 37.870 °, 47.140 °
Magnitude: 5.0 MW
Depth: 17.5 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2017-08-27 23:14:52
Location: NORTHWESTERN IRAN
Latitude, Longitude: 37.946 °, 47.133 °
Magnitude: 5.2 Mwr (us)
Depth: 13.79 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201708272314A
Timestamp: S-20171030005644
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 4.633 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-0.4770.132
Mtt-3.250.125
Mpp3.730.113
Mrt-0.6230.292
Mrp-1.250.266
Mtp-2.70.098
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T72114.838
N19772-0.405
P34014-4.429
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP111672-177
NP22687-18
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves434940
Mantle Waves000
Surface Waves10418350
Event Location
Source NDK
PDEW 2017/08/27 23:14:52.8  37.95   47.13  17.3 0.0 5.2 NORTHWESTERN IRAN       
C201708272314A   B: 43   49  40 S:104  183  50 M:  0    0   0 CMT: 1 TRIHD:  0.8
CENTROID:     -0.2 0.2  37.87 0.01   47.14 0.01  17.5  1.1 FREE S-20171030005644
23 -0.477 0.132 -3.250 0.125  3.730 0.113 -0.623 0.292 -1.250 0.266 -2.700 0.098
V10   4.838 11  72  -0.405 72 197  -4.429 14 340   4.633 116 72 -177  26 87  -18
Other Formats
Contributions