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) TAIWAN REGION icon
Centroid Event
Date-Time (UTC): 2025-12-24 09:47:09
Location: TAIWAN REGION
Latitude, Longitude: 22.860 °, 121.080 °
Magnitude: 6.0 MW
Depth: 15.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-12-24 09:47:06
Location: TAIWAN REGION
Latitude, Longitude: 22.851 °, 121.207 °
Magnitude: 6.0 mww (us)
Depth: 10.0 km
Author: us,usauto,pt,at
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202512240947A
Timestamp: S-20260407100205
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.5
Depth Determination: FIX
Scalar Moment 1.306 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr0.0340.006
Mtt-0.5730.005
Mpp0.5390.006
Mrt0.6120.017
Mrp-0.7960.018
Mtp-0.7820.005
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T60331.579
N27552-0.547
P16217-1.032
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12055412
NP210880143
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves15433740
Mantle Waves130187125
Surface Waves16637850
Event Location
Source NDK
PDEW 2025/12/24 09:47:06.9  22.97  121.25   8.0 0.0 6.0 TAIWAN REGION           
C202512240947A   B:154  337  40 S:166  378  50 M:130  187 125 CMT: 1 TRIHD:  2.5
CENTROID:      2.4 0.1  22.86 0.00  121.08 0.00  15.0  0.0 FIX  S-20260407100205
25  0.034 0.006 -0.573 0.005  0.539 0.006  0.612 0.017 -0.796 0.018 -0.782 0.005
V10   1.579 33  60  -0.547 52 275  -1.032 17 162   1.306 205 54   12 108 80  143
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.0 TAIWAN REGIONIRIS
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.0 TAIWAN REGIONIncorporated Research Institutions for Seismology
GMVGMV for mww 6.0 TAIWAN REGIONIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 6.0 TAIWAN REGIONIncorporated Research Institutions for Seismology
Contributions