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 °, 121.070 °
Magnitude: 6.0 MW
Depth: 14.2 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: Q-20251224113906
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.5
Depth Determination: FREE
Scalar Moment 1.082 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr0.0340.005
Mtt-0.5270.006
Mpp0.4930.006
Mrt0.3780.019
Mrp-0.5010.023
Mtp-0.7580.006
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T61281.221
N25861-0.278
P1547-0.943
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12016515
NP210476155
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves14030940
Mantle Waves112166125
Surface Waves14533350
Event Location
Source NDK
PDEQ 2025/12/24 09:47:06.5  22.85  121.21  10.0 0.0 6.0 TAIWAN REGION           
C202512240947A   B:140  309  40 S:145  333  50 M:112  166 125 CMT: 1 TRIHD:  2.5
CENTROID:      2.9 0.1  22.86 0.00  121.07 0.00  14.2  0.4 FREE Q-20251224113906
25  0.034 0.005 -0.527 0.006  0.493 0.006  0.378 0.019 -0.501 0.023 -0.758 0.006
V10   1.221 28  61  -0.278 61 258  -0.943  7 154   1.082 201 65   15 104 76  155
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