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/19141560

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 5.5 (GCMT) GREENLAND SEA (Inactive) icon
Centroid Event
Date-Time (UTC): 2021-07-23 04:05:44
Location: GREENLAND SEA
Latitude, Longitude: 79.640 °, 3.160 °
Magnitude: 5.5 MW
Depth: 13.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-07-23 04:05:39
Location: GREENLAND SEA
Latitude, Longitude: 79.683 °, 3.377 °
Magnitude: 5.5 mww (us)
Depth: 10.0 km
Author: us,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202107230405A
Timestamp: Q-20210723083623
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.4
Depth Determination: FREE
Scalar Moment 2.223 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr-0.1810.022
Mtt-1.940.027
Mpp2.120.025
Mrt0.540.056
Mrp-0.3270.043
Mtp-0.640.02
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T80102.287
N31773-0.128
P17314-2.159
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP121673-3
NP230787-163
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves12522340
Mantle Waves000
Surface Waves15933550
Event Location
Source NDK
PDEQ 2021/07/23 04:05:40.2  79.69    3.65  10.0 0.0 5.5 GREENLAND SEA           
C202107230405A   B:125  223  40 S:159  335  50 M:  0    0   0 CMT: 1 TRIHD:  1.4
CENTROID:      4.0 0.1  79.64 0.01    3.16 0.02  13.8  0.6 FREE Q-20210723083623
24 -0.181 0.022 -1.940 0.027  2.120 0.025  0.540 0.056 -0.327 0.043 -0.640 0.020
V10   2.287 10  80  -0.128 73 317  -2.159 14 173   2.223 216 73   -3 307 87 -163
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 5.5 GREENLAND SEAIRIS
Moment TensorMoment Tensor for MW 5.5 (GCMT) GREENLAND SEAIRIS DMC
Contributions