Earthquake and Moment Tensor Catalogs of the 2015-2017 Pamir Earthquake Sequence

DOI

A sequence of three strong (M W 7.2–6.4) and several moderate (M W 4.4–5.7) earthquakes struck the Pamir Plateau and surrounding mountain ranges of Tajikistan, China, and Kyrgyzstan in 2015–2017. With a local seismic network in operation in the Xinjiang province since August 2015, an aftershock network on the Pamir Plateau of Tajikistan since February 2016, and additional permanent regional seismic stations, we were able to record the succession of the fore-, main-, and aftershock sequences at local distances with good azimuthal coverage. We located 11,784 seismic events and determined the moment tensor for 33 earthquakes. The seismicity delineates the major tectonic structures of the Pamir, i.e., the thrusts that absorb shortening along the plateau thrust front, and the strike-slip and normal faults that dissect the Plateau into a westward extruding and a northward advancing block. Fault ruptures were activated subsequently at increasing distances from the initial M W 7.2 Sarez. All mainshock areas but the initial one exhibited foreshock seismicity which was not modulated by the occurrence of the earlier earthquakes.

The tabular ASCII data of the seismic event catalog consist of origin date, time, location, depth and magnitude of the events, along with the quality measures: number of P- and S-wave arrival time picks, location root-mean-square misfit and localization method.

The tabular ASCII data of the moment tensor catalog consist of origin date, time, location, the six
independent components of the moment tensor, the moment magnitude, and the orientation of the preferred fault plane parameterized as fault strike, dip and rake.


Version history:

2026-01-31: Version 2.0

Exchange of the file "2022-007_Bloch-et-al_moment_tensor_catalog.txt" with the new file "2022-007_Bloch-et-al_moment_tensor_catalog_correct_norm_v2.0.txt". The original file is available in the "previous-versions" folder.

Reason: The normalization of the components of the moment tensor (columns mrr, mtt, mff, mrt, mrf, mtf, exp) was incorrect so that the resulting moment tensor had a too large absolute moment. The reported moment magnitude and the relative scaling of the moment tensor components was correct, thought.

Identifier
DOI https://doi.org/10.5880/fidgeo.2022.007
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Related Identifier Cites http://faldersons.net/Publications/Text/PhDFAldersons.pdf
Related Identifier Cites https://doi.org/10.1029/2018GL078793
Related Identifier Cites https://doi.org/10.2312/GFZ.NMSOP-2_IS_3.3
Related Identifier Cites https://doi.org/10.1785/BSSA0710040959
Related Identifier Cites https://doi.org/10.1016/j.proeng.2017.05.234
Related Identifier Cites https://doi.org/10.1785/0120080019
Related Identifier Cites https://doi.org/10.3133/ofr72224
Related Identifier Cites https://doi.org/10.1029/93JB03138
Related Identifier Cites https://doi.org/10.1088/1749-4699/8/1/014003
Related Identifier Cites https://doi.org/10.1029/94GL02760
Related Identifier Cites https://doi.org/10.11998/SeisDmc/SN
Related Identifier Cites https://doi.org/10.1016/j.epsl.2013.10.013
Related Identifier Cites https://doi.org/10.7914/SN/TJ
Related Identifier Cites https://doi.org/10.1785/0120000006
Related Identifier Cites https://doi.org/10.14470/3U7560589977
Related Identifier Cites https://doi.org/10.14470/4U7561589984
Related Identifier IsContinuedBy https://doi.org/10.5880/fidgeo.2026.006
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:7333
Provenance
Creator Bloch, Wasja ORCID logo; Schurr, Bernd ORCID logo; Yuan, Xiaohui ORCID logo; Xu, Qiang ORCID logo; Zhao, Junmeng (ORCID: 0000-0003-2713-153X); Murodkulov, Shokhruhk ORCID logo; Oimuhammadzoda, Ilhomjon (ORCID: 0000-0002-8292-4359 )
Publisher GFZ Data Services
Contributor Bloch, Wasja; Schurr, Bernd; Yuan, Xiaohui
Publication Year 2022
Funding Reference Bundesministerium für Bildung und Forschung http://doi.org/10.13039/501100002347 Crossref Funder ID 03G0878A CaTeNA; Bundesministerium für Bildung und Forschung http://doi.org/10.13039/501100002347 Crossref Funder ID 03G0878B CaTeNA; Deutsche Forschungsgemeinschaft http://doi.org/10.13039/501100001659 Crossref Funder ID RA 442/41
Rights CC BY 4.0; http://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact Bloch, Wasja (Department of Earth, Ocean and Atmospheric Sciences The University of British Columbia, Vancouver, Canada); Schurr, Bernd (GFZ German Research Centre for Geosiences, Potsdam, Germany); Yuan, Xiaohui (GFZ German Research Centre for Geosiences, Potsdam, Germany)
Representation
Resource Type Dataset
Version 2.0
Discipline Geospheric Sciences
Spatial Coverage (71.400W, 37.200S, 77.000E, 40.000N); Study area
Temporal Coverage Begin 2015-08-01T00:00:00Z
Temporal Coverage End 2017-05-01T00:00:00Z