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/19331311

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 4.8 (GCMT) EAST OF SEVERNAYA ZEMLYA icon
Centroid Event
Date-Time (UTC): 2021-05-11 20:06:34
Location: EAST OF SEVERNAYA ZEMLYA
Latitude, Longitude: 79.230 °, 124.510 °
Magnitude: 4.8 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-05-11 20:06:31
Location: EAST OF SEVERNAYA ZEMLYA
Latitude, Longitude: 78.968 °, 124.579 °
Magnitude: 4.7 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202105112006A
Timestamp: S-20210729221804
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.6
Depth Determination: FIX
Scalar Moment 1.737 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-1.650.038
Mtt0.2580.038
Mpp1.40.037
Mrt0.1910.183
Mrp0.6920.132
Mtp-0.3970.032
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T255111.639
N347100.205
P12075-1.835
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP133335-108
NP217457-78
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves273040
Mantle Waves000
Surface Waves10214950
Event Location
Source NDK
PDEW 2021/05/11 20:06:31.4  78.97  124.58  10.0 0.0 4.7 EAST OF SEVERNAYA ZEMLYA
C202105112006A   B: 27   30  40 S:102  149  50 M:  0    0   0 CMT: 1 TRIHD:  0.6
CENTROID:      2.9 0.2  79.23 0.02  124.51 0.08  12.0  0.0 FIX  S-20210729221804
23 -1.650 0.038  0.258 0.038  1.400 0.037  0.191 0.183  0.692 0.132 -0.397 0.032
V10   1.639 11 255   0.205 10 347  -1.835 75 120   1.737 333 35 -108 174 57  -78
Other Formats
Contributions