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/20910411

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 4.8 (GCMT) JAN MAYEN ISLAND REGION icon
Centroid Event
Date-Time (UTC): 2022-11-24 00:31:59
Location: JAN MAYEN ISLAND REGION
Latitude, Longitude: 71.480 °, -3.900 °
Magnitude: 4.8 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
Date-Time (UTC): 2022-11-24 00:31:56
Location: JAN MAYEN ISLAND REGION
Latitude, Longitude: 71.417 °, -3.703 °
Magnitude: 4.9 mb (us)
Depth: 10.112 km
Author: us
Catalog, Contributor: NEIC PDE, us
CMT Details
Event ID C202211240031A
Timestamp: S-20230129233539
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 0.6
Depth Determination: FIX
Scalar Moment 1.997 e+23 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 23, Units: dyne-cm)
ComponentValueError
Mrr-1.310.088
Mtt1.490.074
Mpp-0.1810.08
Mrt-0.4470.272
Mrp-0.3220.272
Mtp1.670.063
Principal Axes (Length Exponent: 23, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T14882.599
N5712-1.205
P27276-1.395
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP125238-71
NP24854-105
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves222640
Mantle Waves000
Surface Waves9113950
Event Location
Source NDK
PDEW 2022/11/24 00:31:57.0  71.42   -3.70  10.1 0.0 4.9 JAN MAYEN ISLAND REGION 
C202211240031A   B: 22   26  40 S: 91  139  50 M:  0    0   0 CMT: 1 TRIHD:  0.6
CENTROID:      2.5 0.2  71.48 0.02   -3.90 0.07  12.0  0.0 FIX  S-20230129233539
23 -1.310 0.088  1.490 0.074 -0.181 0.080 -0.447 0.272 -0.322 0.272  1.670 0.063
V10   2.599  8 148  -1.205 12  57  -1.395 76 272   1.997 252 38  -71  48 54 -105
Other Formats
Contributions