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/22855785

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 5.8 (GCMT) TONGA ISLANDS icon
Centroid Event
Date-Time (UTC): 2024-06-18 06:40:47
Location: TONGA ISLANDS
Latitude, Longitude: -16.610 °, -173.440 °
Magnitude: 5.8 MW
Depth: 96.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2024-06-18 06:40:41
Location: TONGA ISLANDS
Latitude, Longitude: -16.556 °, -173.590 °
Magnitude: 5.8 mww (us)
Depth: 92.759 km
Author: pt,us,usauto
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C202406180640A
Timestamp: S-20240829231449
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 2.0
Depth Determination: FREE
Scalar Moment 7.255 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr-3.190.045
Mtt3.10.051
Mpp0.0910.053
Mrt-1.350.036
Mrp5.010.032
Mtp-4.00.043
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T222227.505
N32731-0.5
P10350-7.004
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP127036-152
NP215774-58
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16536140
Mantle Waves99127125
Surface Waves17137350
Event Location
Source NDK
PDEW 2024/06/18 06:40:41.3 -16.54 -173.60  87.0 0.0 5.8 TONGA ISLANDS           
C202406180640A   B:165  361  40 S:171  373  50 M: 99  127 125 CMT: 1 TRIHD:  2.0
CENTROID:      5.8 0.1 -16.61 0.00 -173.44 0.00  96.8  0.5 FREE S-20240829231449
24 -3.190 0.045  3.100 0.051  0.091 0.053 -1.350 0.036  5.010 0.032 -4.000 0.043
V10   7.505 22 222  -0.500 31 327  -7.004 50 103   7.255 270 36 -152 157 74  -58
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 5.8 TONGA ISLANDSIRIS
Contributions