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 6.0 (GCMT) SOUTHEASTERN AFGHANISTAN icon
Centroid Event
Date-Time (UTC): 2025-08-31 19:17:37
Location: SOUTHEASTERN AFGHANISTAN
Latitude, Longitude: 34.660 °, 70.710 °
Magnitude: 6.0 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-08-31 19:17:34
Location: SOUTHEASTERN AFGHANISTAN
Latitude, Longitude: 34.706 °, 70.793 °
Magnitude: 6.0 Mww (us)
Depth: 8.0 km
Author: us,usauto,pt,at
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202508311917A
Timestamp: Q-20250831223745
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.5
Depth Determination: FIX
Scalar Moment 1.348 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr1.270.006
Mtt-0.9910.006
Mpp-0.2810.006
Mrt0.2050.018
Mrp0.0260.019
Mtp-0.6680.005
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T14841.289
N24040.115
P1494-1.406
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12354184
NP2634995
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves13730640
Mantle Waves127199125
Surface Waves14737550
Event Location
Source NDK
PDEQ 2025/08/31 19:17:34.2  34.52   70.73   8.0 0.0 6.0 SOUTHEASTERN AFGHANISTAN
C202508311917A   B:137  306  40 S:147  375  50 M:127  199 125 CMT: 1 TRIHD:  2.5
CENTROID:      3.2 0.1  34.66 0.00   70.71 0.00  12.0  0.0 FIX  Q-20250831223745
25  1.270 0.006 -0.991 0.006 -0.281 0.006  0.205 0.018  0.026 0.019 -0.668 0.005
V10   1.289 84  14   0.115  4 240  -1.406  4 149   1.348 235 41   84  63 49   95
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.0 SOUTHEASTERN AFGHANISTANIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.0 SOUTHEASTERN AFGHANISTANIncorporated Research Institutions for Seismology
GMVGMV for Mww 6.0 SOUTHEASTERN AFGHANISTANIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for Mww 6.0 SOUTHEASTERN AFGHANISTANIncorporated Research Institutions for Seismology
Contributions