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/19785943

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 4.9 (GCMT) NORTH OF FRANZ JOSEF LAND icon
Centroid Event
Date-Time (UTC): 2021-10-24 17:47:53
Location: NORTH OF FRANZ JOSEF LAND
Latitude, Longitude: 86.270 °, 36.870 °
Magnitude: 4.9 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-10-24 17:47:51
Location: NORTH OF SVALBARD
Latitude, Longitude: 86.260 °, 34.525 °
Magnitude: 4.6 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202110241747A
Timestamp: S-20211229230145
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.7
Depth Determination: FIX
Scalar Moment 3.008 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-2.980.055
Mtt2.320.055
Mpp0.650.056
Mrt0.0450.206
Mrp-0.8230.246
Mtp1.050.046
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T15332.844
N63130.317
P25777-3.171
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP125743-71
NP25150-107
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves344240
Mantle Waves000
Surface Waves12719350
Event Location
Source NDK
PDEW 2021/10/24 17:47:52.0  86.26   34.53  10.0 0.0 4.6 NORTH OF SVALBARD       
C202110241747A   B: 34   42  40 S:127  193  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:      1.2 0.2  86.27 0.01   36.87 0.27  12.0  0.0 FIX  S-20211229230145
23 -2.980 0.055  2.320 0.055  0.650 0.056  0.045 0.206 -0.823 0.246  1.050 0.046
V10   2.844  3 153   0.317 13  63  -3.171 77 257   3.008 257 43  -71  51 50 -107
Other Formats
Contributions