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/18049183

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 4.7 (GCMT) GREENLAND SEA icon
Centroid Event
Date-Time (UTC): 2019-10-29 14:36:16
Location: GREENLAND SEA
Latitude, Longitude: 79.360 °, 3.570 °
Magnitude: 4.7 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2019-10-29 14:36:16
Location: GREENLAND SEA
Latitude, Longitude: 79.466 °, 4.406 °
Magnitude: 4.9 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C201910291436A
Timestamp: S-20191230140924
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.5
Depth Determination: FIX
Scalar Moment 1.297 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-1.130.042
Mtt0.0910.044
Mpp1.040.035
Mrt-0.7010.236
Mrp0.2320.143
Mtp0.2530.036
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T28321.105
N192260.385
P1764-1.489
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP13749-55
NP217052-124
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves171840
Mantle Waves000
Surface Waves9312750
Event Location
Source NDK
PDEW 2019/10/29 14:36:16.2  79.47    4.41  10.0 0.0 4.9 GREENLAND SEA           
C201910291436A   B: 17   18  40 S: 93  127  50 M:  0    0   0 CMT: 1 TRIHD:  0.5
CENTROID:      0.7 0.3  79.36 0.04    3.57 0.10  12.0  0.0 FIX  S-20191230140924
23 -1.130 0.042  0.091 0.044  1.040 0.035 -0.701 0.236  0.232 0.143  0.253 0.036
V10   1.105  2 283   0.385 26 192  -1.489 64  17   1.297  37 49  -55 170 52 -124
Other Formats
Contributions