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/20313379

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 6.6 (GCMT) NORTHERN MID-ATLANTIC RIDGE icon
Centroid Event
Date-Time (UTC): 2022-03-22 16:35:15
Location: NORTHERN MID-ATLANTIC RIDGE
Latitude, Longitude: 10.890 °, -43.060 °
Magnitude: 6.6 MW
Depth: 16.2 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2022-03-22 16:35:08
Location: NORTHERN MID-ATLANTIC RIDGE
Latitude, Longitude: 10.745 °, -43.382 °
Magnitude: 6.7 mww (us)
Depth: 10.0 km
Author: us,at,pt,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202203221635A
Timestamp: S-20220530003354
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 4.9
Depth Determination: FREE
Scalar Moment 1.033 e+26 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 26, Units: dyne-cm)
ComponentValueError
Mrr-0.1130.004
Mtt-0.1590.004
Mpp0.2730.004
Mrt0.1450.012
Mrp0.2960.013
Mtp-0.950.004
Principal Axes (Length Exponent: 26, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T23271.049
N34370-0.031
P14018-1.017
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP127872-172
NP218582-18
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16139650
Mantle Waves153312125
Surface Waves16038550
Event Location
Source NDK
PDEW 2022/03/22 16:35:08.0  10.74  -43.38  10.0 0.0 6.7 NORTHERN MID-ATLANTIC RI
C202203221635A   B:161  396  50 S:160  385  50 M:153  312 125 CMT: 1 TRIHD:  4.9
CENTROID:      7.2 0.0  10.89 0.00  -43.06 0.00  16.2  0.3 FREE S-20220530003354
26 -0.113 0.004 -0.159 0.004  0.273 0.004  0.145 0.012  0.296 0.013 -0.950 0.004
V10   1.049  7 232  -0.031 70 343  -1.017 18 140   1.033 278 72 -172 185 82  -18
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.6 NORTHERN MID-ATLANTIC RIDGEIRIS
Back ProjectionsBack Projections for mww 6.7 NORTHERN MID-ATLANTIC RIDGEIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.6 NORTHERN MID-ATLANTIC RIDGEIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 6.7 NORTHERN MID-ATLANTIC RIDGEIncorporated Research Institutions for Seismology
GMVGMV for mww 6.7 NORTHERN MID-ATLANTIC RIDGEIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.7 NORTHERN MID-ATLANTIC RIDGEIncorporated Research Institutions for Seismology
Contributions