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

When citing this Moment Tensor page please use the Digital Object Identifier (DOI):

doi:10.17611/DP/861025

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) LAPTEV SEA icon
Centroid Event
Date-Time (UTC): 1988-03-21 23:31:24
Location: LAPTEV SEA
Latitude, Longitude: 77.640 °, 125.780 °
Magnitude: 6.4 MW
Depth: 15.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C032188B
Timestamp: O-00000000000000
CMT Version: Final
NDK Version: V10
Reference Catalog: PDE
Source Zero Trace
Moment Rate Fn: BOXHD
Half Duration: 6.0
Depth Determination: FIX
Scalar Moment 4.31 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr-3.7480.053
Mtt-0.0780.036
Mpp3.8260.042
Mrt1.0360.515
Mrp-1.5630.467
Mtp-0.8360.041
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T77124.38
N3459-0.14
P21975-4.24
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP117834-73
NP233958-101
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves122745
Mantle Waves923135
Surface Waves000
Event Location
Source NDK
PDE  1988/03/21 23:31:21.6  77.62  125.48  10.0 6.0 6.0 LAPTEV SEA              
C032188B         B: 12   27  45 S:  0    0   0 M:  9   23 135 CMT: 1 BOXHD:  6.0
CENTROID:      3.1 0.3  77.64 0.03  125.78 0.11  15.0  0.0 FIX  O-00000000000000
25 -3.748 0.053 -0.078 0.036  3.826 0.042  1.036 0.515 -1.563 0.467 -0.836 0.041
V10   4.380 12  77  -0.140  9 345  -4.240 75 219   4.310 178 34  -73 339 58 -101
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.4 LAPTEV SEAIRIS DMC
Contributions