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/18009311

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 4.9 (GCMT) WEST OF MACQUARIE ISLAND icon
Centroid Event
Date-Time (UTC): 2018-07-31 01:35:26
Location: WEST OF MACQUARIE ISLAND
Latitude, Longitude: -60.810 °, 153.420 °
Magnitude: 4.9 MW
Depth: 18.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C201807310135A
Timestamp: S-20181114143148
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.7
Depth Determination: FREE
Scalar Moment 2.751 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr0.1270.132
Mtt1.550.108
Mpp-1.680.119
Mrt-0.6630.249
Mrp0.3160.265
Mtp-2.10.105
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T206152.787
N2775-0.076
P2960-2.714
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP13427911
NP225079169
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves182040
Mantle Waves000
Surface Waves9011350
Event Location
Source NDK
PDEW 2018/07/31 01:35:22.5 -60.88  154.62  10.0 0.0 4.7 WEST OF MACQUARIE ISLAND
C201807310135A   B: 18   20  40 S: 90  113  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:      4.4 0.3 -60.81 0.02  153.42 0.04  18.8  1.9 FREE S-20181114143148
23  0.127 0.132  1.550 0.108 -1.680 0.119 -0.663 0.249  0.316 0.265 -2.100 0.105
V10   2.787 15 206  -0.076 75  27  -2.714  0 296   2.751 342 79   11 250 79  169
Other Formats
Contributions