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/18629382

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 5.2 (GCMT) NORTH CAROLINA icon
Centroid Event
Date-Time (UTC): 2020-08-09 12:07:40
Location: NORTH CAROLINA
Latitude, Longitude: 36.520 °, -81.080 °
Magnitude: 5.2 MW
Depth: 13.3 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2020-08-09 12:07:37
Location: NORTH CAROLINA
Latitude, Longitude: 36.476 °, -81.094 °
Magnitude: 5.1 Mww (us)
Depth: 7.58 km
Author: us,se
Catalog, Contributor: NEIC PDE, se
Related Products:
CMT Details
Event ID C202008091207A
Timestamp: S-20201029223929
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.0
Depth Determination: FREE
Scalar Moment 0.804 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr0.5620.024
Mtt-0.050.015
Mpp-0.5120.017
Mrt-0.1490.036
Mrp0.3120.038
Mtp0.5580.01
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T271750.646
N14980.316
P5713-0.962
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP11363375
NP233458100
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves558740
Mantle Waves000
Surface Waves13323250
Event Location
Source NDK
PDEW 2020/08/09 12:07:37.8  36.47  -81.08   3.0 0.0 5.1 NORTH CAROLINA          
C202008091207A   B: 55   87  40 S:133  232  50 M:  0    0   0 CMT: 1 TRIHD:  1.0
CENTROID:      2.6 0.1  36.52 0.01  -81.08 0.01  13.3  0.7 FREE S-20201029223929
24  0.562 0.024 -0.050 0.015 -0.512 0.017 -0.149 0.036  0.312 0.038  0.558 0.010
V10   0.646 75 271   0.316  8 149  -0.962 13  57   0.804 136 33   75 334 58  100
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 5.2 NORTH CAROLINAIRIS
Event PlotsEvent Plots for Mww 5.1 NORTH CAROLINAIncorporated Research Institutions for Seismology
GMVGMV for Mww 5.1 NORTH CAROLINAIncorporated Research Institutions for Seismology
Contributions