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 7.9 (GCMT) OFF EAST COAST OF KAMCHATKA icon
Centroid Event
Date-Time (UTC): 2025-09-18 18:58:38
Location: OFF EAST COAST OF KAMCHATKA
Latitude, Longitude: 52.750 °, 160.710 °
Magnitude: 7.9 MW
Depth: 31.4 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2025-09-18 18:58:13
Location: NEAR EAST COAST OF KAMCHATKA
Latitude, Longitude: 53.193 °, 160.513 °
Magnitude: 7.8 mww (us)
Depth: 19.5 km
Author: at,us,pt,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202509181858A
Timestamp: Q-20250918194849
CMT Version: Quick
NDK Version: V10
Reference Catalog: PDEQ
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 20.9
Depth Determination: FREE
Scalar Moment 7.907 e+27 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 27, Units: dyne-cm)
ComponentValueError
Mrr4.00.011
Mtt-1.330.007
Mpp-2.670.008
Mrt4.390.067
Mrp5.20.067
Mtp-1.940.005
Principal Axes (Length Exponent: 27, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T313607.891
N21920.032
P12830-7.923
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP12111582
NP2407592
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves14841550
Mantle Waves148422150
Surface Waves14227850
Event Location
Source NDK
PDEQ 2025/09/18 18:58:13.9  53.19  160.51  19.5 0.0 7.8 NEAR EAST COAST OF KAMCH
C202509181858A   B:148  415  50 S:142  278  50 M:148  422 150 CMT: 1 TRIHD: 20.9
CENTROID:     24.9 0.1  52.75 0.00  160.71 0.01  31.4  0.2 FREE Q-20250918194849
27  4.000 0.011 -1.330 0.007 -2.670 0.008  4.390 0.067  5.200 0.067 -1.940 0.005
V10   7.891 60 313   0.032  2 219  -7.923 30 128   7.907 211 15   82  40 75   92
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 7.9 OFF EAST COAST OF KAMCHATKAIncorporated Research Institutions for Seismology
Back ProjectionsBack Projections for mww 7.8 NEAR EAST COAST OF KAMCHATKAEarthScope
AftershocksAftershocks for mww 7.8 NEAR EAST COAST OF KAMCHATKAIRIS DMC
EQ EnergyEQ Energy for mww 7.8 NEAR EAST COAST OF KAMCHATKAIncorporated Research Institutions for Seismology
Event PlotsEvent Plots for mww 7.8 NEAR EAST COAST OF KAMCHATKAIncorporated Research Institutions for Seismology
GMVGMV for mww 7.8 NEAR EAST COAST OF KAMCHATKAIncorporated Research Institutions for Seismology
Contributions