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/19453614

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 5.4 (GCMT) DRAKE PASSAGE icon
Centroid Event
Date-Time (UTC): 2021-06-23 00:47:09
Location: DRAKE PASSAGE
Latitude, Longitude: -58.180 °, -63.680 °
Magnitude: 5.4 MW
Depth: 17.8 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2021-06-23 00:47:05
Location: DRAKE PASSAGE
Latitude, Longitude: -58.144 °, -63.764 °
Magnitude: 5.5 mww (us)
Depth: 10.0 km
Author: usauto,us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202106230047A
Timestamp: S-20210830002701
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.2
Depth Determination: FREE
Scalar Moment 1.561 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr0.0260.018
Mtt1.280.019
Mpp-1.310.02
Mrt-0.4530.04
Mrp0.0680.042
Mtp0.7440.016
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T166151.592
N32073-0.065
P747-1.531
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP120974174
NP23018416
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves13724040
Mantle Waves000
Surface Waves15227750
Event Location
Source NDK
PDEW 2021/06/23 00:47:05.3 -58.14  -63.76  10.0 0.0 5.5 DRAKE PASSAGE           
C202106230047A   B:137  240  40 S:152  277  50 M:  0    0   0 CMT: 1 TRIHD:  1.2
CENTROID:      4.0 0.1 -58.18 0.01  -63.68 0.01  17.8  0.6 FREE S-20210830002701
24  0.026 0.018  1.280 0.019 -1.310 0.020 -0.453 0.040  0.068 0.042  0.744 0.016
V10   1.592 15 166  -0.065 73 320  -1.531  7  74   1.561 209 74  174 301 84   16
Other Formats
Contributions