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

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 6.4 (GCMT) LEEWARD ISLANDS icon
Centroid Event
Date-Time (UTC): 2025-10-27 12:38:47
Location: LEEWARD ISLANDS
Latitude, Longitude: 16.540 °, -59.480 °
Magnitude: 6.4 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-10-27 12:38:40
Location: LEEWARD ISLANDS
Latitude, Longitude: 16.542 °, -59.583 °
Magnitude: 6.5 mww (us)
Depth: 9.0 km
Author: pt,at,us,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202510271238A
Timestamp: S-20251230005841
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 4.1
Depth Determination: FIX
Scalar Moment 5.763 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr-4.30.018
Mtt-1.420.019
Mpp5.720.018
Mrt-0.140.049
Mrp1.680.049
Mtp-2.780.016
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T25186.913
N34310-2.3
P12377-4.613
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP133038-107
NP217054-77
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16637640
Mantle Waves140303125
Surface Waves15935550
Event Location
Source NDK
PDEW 2025/10/27 12:38:40.4  16.54  -59.56   9.0 0.0 6.5 LEEWARD ISLANDS         
C202510271238A   B:166  376  40 S:159  355  50 M:140  303 125 CMT: 1 TRIHD:  4.1
CENTROID:      6.6 0.0  16.54 0.00  -59.48 0.00  12.0  0.0 FIX  S-20251230005841
25 -4.300 0.018 -1.420 0.019  5.720 0.018 -0.140 0.049  1.680 0.049 -2.780 0.016
V10   6.913  8 251  -2.300 10 343  -4.613 77 123   5.763 330 38 -107 170 54  -77
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Back ProjectionsBack Projections for mww 6.5 LEEWARD ISLANDSEarthScope
AftershocksAftershocks for mww 6.5 LEEWARD ISLANDSIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.4 LEEWARD ISLANDSIncorporated Research Institutions for Seismology
EQ EnergyEQ Energy for mww 6.5 LEEWARD ISLANDSIncorporated Research Institutions for Seismology
GMVGMV for mww 6.5 LEEWARD ISLANDSIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.5 LEEWARD ISLANDSIncorporated Research Institutions for Seismology
Contributions