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/16347109

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 6.6 (GCMT) RAT ISLANDS, ALEUTIAN ISLANDS icon
Centroid Event
Date-Time (UTC): 2017-10-08 22:34:37
Location: RAT ISLANDS, ALEUTIAN ISLANDS
Latitude, Longitude: 52.370 °, 176.820 °
Magnitude: 6.6 MW
Depth: 121.1 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2017-10-08 22:34:33
Location: RAT ISLANDS, ALEUTIAN ISLANDS
Latitude, Longitude: 52.450 °, 176.808 °
Magnitude: 6.6 mww (us)
Depth: 111.84 km
Author: us,at,pt,ak
Catalog, Contributor: NEIC PDE, us
Related Products:
CMT Details
Event ID C201710082234A
Timestamp: S-20171229205855
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 4.6
Depth Determination: FREE
Scalar Moment 8.466 e+25 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 25, Units: dyne-cm)
ComponentValueError
Mrr0.7780.033
Mtt-5.530.036
Mpp4.750.034
Mrt4.980.025
Mrp-4.20.023
Mtp-1.560.03
Principal Axes (Length Exponent: 25, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T69368.623
N30239-0.316
P18430-8.309
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP1219406
NP212586130
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves16644050
Mantle Waves155318125
Surface Waves17244650
Event Location
Source NDK
PDEW 2017/10/08 22:34:33.5  52.39  176.77 119.0 0.0 6.5 RAT ISLANDS, ALEUTIAN IS
C201710082234A   B:166  440  50 S:172  446  50 M:155  318 125 CMT: 1 TRIHD:  4.6
CENTROID:      3.9 0.0  52.37 0.00  176.82 0.00 121.1  0.4 FREE S-20171229205855
25  0.778 0.033 -5.530 0.036  4.750 0.034  4.980 0.025 -4.200 0.023 -1.560 0.030
V10   8.623 36  69  -0.316 39 302  -8.309 30 184   8.466 219 40    6 125 86  130

				
Other Formats
Other Products For This Event
Product TypeDescriptionOrganization
Global ShakeMovie syntheticGlobal ShakeMovie synthetic for MW 6.6 RAT ISLANDS, ALEUTIAN ISLANDSIRIS
Back ProjectionsBack Projections for mww 6.6 RAT ISLANDS, ALEUTIAN ISLANDSIRIS DMC
GMVGMV for mww 6.6 RAT ISLANDS, ALEUTIAN ISLANDSIRIS DMC
EQ EnergyEQ Energy for mww 6.6 RAT ISLANDS, ALEUTIAN ISLANDSIRIS DMC
Event PlotsEvent Plots for mww 6.6 RAT ISLANDS, ALEUTIAN ISLANDSIRIS DMC
Surface-Wave Radiation PatternsSurface-Wave Radiation Patterns for MW 6.6 RAT ISLANDS, ALEUTIAN ISLANDSIRIS DMC
Contributions