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/13295757

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) DRAKE PASSAGE icon
Centroid Event
Date-Time (UTC): 2016-07-11 21:48:40
Location: DRAKE PASSAGE
Latitude, Longitude: -56.740 °, -69.110 °
Magnitude: 4.9 MW
Depth: 23.6 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2016-07-11 21:48:37
Location: DRAKE PASSAGE
Latitude, Longitude: -56.611 °, -69.243 °
Magnitude: 4.7 mb (us)
Depth: 10.0 km
Author: us
Catalog, Contributor: NEIC PDE,
CMT Details
Event ID C201607112148A
Timestamp: S-20161007034432
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 3.191 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr1.470.188
Mtt2.150.117
Mpp-3.620.21
Mrt0.3910.178
Mrp-0.560.229
Mtp1.170.118
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T351172.461
N148721.46
P2597-3.921
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP13474173
NP21268317
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves191940
Mantle Waves000
Surface Waves698550
Event Location
Source NDK
PDEW 2016/07/11 21:48:37.2 -56.61  -69.24  10.0 0.0 4.7 DRAKE PASSAGE           
C201607112148A   B: 19   19  40 S: 69   85  50 M:  0    0   0 CMT: 1 TRIHD:  0.7
CENTROID:      3.1 0.4 -56.74 0.02  -69.11 0.04  23.6  1.7 FREE S-20161007034432
23  1.470 0.188  2.150 0.117 -3.620 0.210  0.391 0.178 -0.560 0.229  1.170 0.118
V10   2.461 17 351   1.460 72 148  -3.921  7 259   3.191  34 74  173 126 83   17
Other Formats
Contributions