Moment tensor estimation using regional seismograms from a Tibetan Plateau portable network deployment

George E. Randall; Charles J. Ammon; Thomas J. Owens

doi:10.1029/95GL00909

Moment tensor estimation using regional seismograms from a Tibetan Plateau portable network deployment

George E. Randall, Charles J. Ammon, Thomas J. Owens

Research output: Contribution to journal › Article › peer-review

78 Scopus citations

Abstract

We present the results of moment tensor inversions using regional seismograms recorded during the 1991–1992 PASSCAL passive seismic experiment on the Tibetan Plateau. Using data recorded over a one‐year period, we estimate the source mechanisms for 38 earthquakes within and near the Tibetan Plateau with moment‐magnitudes (M_w) ranging from 3.8 to 5.0. With only one exception, all the events within the Plateau, but away from the Plateau boundary, indicate either strike‐slip or extensional faulting, a result consistent with previous studies. Three‐fourths of all the events occurred at depths less than 10 km, and all but two depths less than 15 km. Several events, located near the southeastern section of the Plateau, exhibit an unusual m_b‐M_w difference of approximately one magnitude unit.

Original language	English (US)
Pages (from-to)	1665-1668
Number of pages	4
Journal	Geophysical Research Letters
Volume	22
Issue number	13
DOIs	https://doi.org/10.1029/95GL00909
State	Published - Jul 1 1995

All Science Journal Classification (ASJC) codes

Geophysics
General Earth and Planetary Sciences

Access to Document

10.1029/95GL00909

Cite this

@article{b90a47d1cd0d4338bd68cce980e4e745,

title = "Moment tensor estimation using regional seismograms from a Tibetan Plateau portable network deployment",

abstract = "We present the results of moment tensor inversions using regional seismograms recorded during the 1991–1992 PASSCAL passive seismic experiment on the Tibetan Plateau. Using data recorded over a one‐year period, we estimate the source mechanisms for 38 earthquakes within and near the Tibetan Plateau with moment‐magnitudes (Mw) ranging from 3.8 to 5.0. With only one exception, all the events within the Plateau, but away from the Plateau boundary, indicate either strike‐slip or extensional faulting, a result consistent with previous studies. Three‐fourths of all the events occurred at depths less than 10 km, and all but two depths less than 15 km. Several events, located near the southeastern section of the Plateau, exhibit an unusual mb‐Mw difference of approximately one magnitude unit.",

author = "Randall, {George E.} and Ammon, {Charles J.} and Owens, {Thomas J.}",

year = "1995",

month = jul,

day = "1",

doi = "10.1029/95GL00909",

language = "English (US)",

volume = "22",

pages = "1665--1668",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley and Sons Inc.",

number = "13",

}

TY - JOUR

T1 - Moment tensor estimation using regional seismograms from a Tibetan Plateau portable network deployment

AU - Randall, George E.

AU - Ammon, Charles J.

AU - Owens, Thomas J.

PY - 1995/7/1

Y1 - 1995/7/1

N2 - We present the results of moment tensor inversions using regional seismograms recorded during the 1991–1992 PASSCAL passive seismic experiment on the Tibetan Plateau. Using data recorded over a one‐year period, we estimate the source mechanisms for 38 earthquakes within and near the Tibetan Plateau with moment‐magnitudes (Mw) ranging from 3.8 to 5.0. With only one exception, all the events within the Plateau, but away from the Plateau boundary, indicate either strike‐slip or extensional faulting, a result consistent with previous studies. Three‐fourths of all the events occurred at depths less than 10 km, and all but two depths less than 15 km. Several events, located near the southeastern section of the Plateau, exhibit an unusual mb‐Mw difference of approximately one magnitude unit.

AB - We present the results of moment tensor inversions using regional seismograms recorded during the 1991–1992 PASSCAL passive seismic experiment on the Tibetan Plateau. Using data recorded over a one‐year period, we estimate the source mechanisms for 38 earthquakes within and near the Tibetan Plateau with moment‐magnitudes (Mw) ranging from 3.8 to 5.0. With only one exception, all the events within the Plateau, but away from the Plateau boundary, indicate either strike‐slip or extensional faulting, a result consistent with previous studies. Three‐fourths of all the events occurred at depths less than 10 km, and all but two depths less than 15 km. Several events, located near the southeastern section of the Plateau, exhibit an unusual mb‐Mw difference of approximately one magnitude unit.

UR - http://www.scopus.com/inward/record.url?scp=0029481465&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029481465&partnerID=8YFLogxK

U2 - 10.1029/95GL00909

DO - 10.1029/95GL00909

M3 - Article

AN - SCOPUS:0029481465

SN - 0094-8276

VL - 22

SP - 1665

EP - 1668

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 13

ER -

Moment tensor estimation using regional seismograms from a Tibetan Plateau portable network deployment

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this