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1

Upper mantle P velocity structure beneath the Midwestern United States derived from triplicated waveforms

Chu, Risheng, Schmandt, Brandon, Helmberger, Don V.

Journal:

Geochemistry, Geophysics, Geosystems

Year:

2012

Language:

english

File:

PDF, 2.89 MB

english, 2012

2

Evidence for strong lateral seismic velocity variation in the lower crust and upper mantle beneath the California margin

Lai, Voon Hui, Graves, Robert W., Wei, Shengji, Helmberger, Don

Journal:

Earth and Planetary Science Letters

Year:

2017

Language:

english

File:

PDF, 5.62 MB

english, 2017

3

Depth dependence of anisotropy of Earth's inner core

Song, Xiaodong, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 977 KB

english, 1995

4

Waveform modeling of the slab beneath Japan

Chen, Min, Tromp, Jeroen, Helmberger, Don, Kanamori, Hiroo

Journal:

Journal of Geophysical Research

Year:

2007

Language:

english

File:

PDF, 1.85 MB

english, 2007

5

Velocity structure near the inner core boundary from waveform modeling

Song, Xiaodong, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

1992

Language:

english

File:

PDF, 1.10 MB

english, 1992

6

The potential for supershear earthquakes in damaged fault zones – theory and observations

Huang, Yihe, Ampuero, Jean-Paul, Helmberger, Don V.

Journal:

Earth and Planetary Science Letters

Year:

2016

Language:

english

File:

PDF, 1.76 MB

english, 2016

7

A dipping, thick segment of the Farallon Slab beneath central U.S.

Sun, Daoyuan, Gurnis, Michael, Saleeby, Jason, Helmberger, Don

Journal:

Journal of Geophysical Research Solid Earth

Year:

2017

Language:

english

File:

PDF, 1.87 MB

english, 2017

8

Three-dimensional structure of the African superplume from waveform modelling

Sidao Ni, Don V. Helmberger, Jeroen Tromp

Journal:

Geophysical Journal International

Year:

2005

Language:

english

File:

PDF, 5.16 MB

english, 2005

9

Retrieval of Moho-reflected shear wave arrivals from ambient seismic noise

Zhongwen Zhan, Sidao Ni, Don V. Helmberger, Robert W. Clayton

Journal:

Geophysical Journal International

Year:

2010

Language:

english

File:

PDF, 4.14 MB

english, 2010

10

Seismology: Energy radiation from the Sumatra earthquake

Ni, Sidao, Kanamori, Hiroo, Helmberger, Don

Journal:

Year:

2005

Language:

english

File:

PDF, 567 KB

english, 2005

11

Further constraints on the African superplume structure

Sidao Ni, Don V. Helmberger

Journal:

Physics of the Earth and Planetary Interiors

Year:

2003

Language:

english

File:

PDF, 553 KB

english, 2003

12

Horizontal transition from fast to slow structures at the core–mantle boundary; South Atlantic

Sidao Ni, Don V Helmberger

Journal:

Earth and Planetary Science Letters

Year:

2001

Language:

english

File:

PDF, 915 KB

english, 2001

13

Seismological constraints on the South African superplume; could be the oldest distinct structure on earth

Sidao Ni, Don V. Helmberger

Journal:

Earth and Planetary Science Letters

Year:

2003

Language:

english

File:

PDF, 1.39 MB

english, 2003

14

Probing an ultra-low velocity zone at the core mantle boundary with P and S waves

Ni, Sidao, Helmberger, Don V.

Journal:

Geophysical Research Letters

Year:

2001

Language:

english

File:

PDF, 489 KB

english, 2001

15

Direct measures of lateral velocity variation in the deep Earth

Sun, Daoyuan, Helmberger, Don, Ni, Sidao, Bower, Dan

Journal:

Journal of Geophysical Research

Year:

2009

Language:

english

File:

PDF, 20.72 MB

english, 2009

16

Lower mantle tomography and phase change mapping

Sun, Daoyuan, Helmberger, Don

Journal:

Journal of Geophysical Research

Year:

2008

Language:

english

File:

PDF, 3.87 MB

english, 2008

17

Locating earthquakes with surface waves and centroid moment tensor estimation

Wei, Shengji, Zhan, Zhongwen, Tan, Ying, Ni, Sidao, Helmberger, Don

Journal:

Journal of Geophysical Research

Year:

2012

Language:

english

File:

PDF, 3.26 MB

english, 2012

18

A P wave velocity model of Earth's core

Song, Xiaodong, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 1.28 MB

english, 1995

19

Rolling hills on the core–mantle boundary

Sun, Daoyuan, Helmberger, Don V., Jackson, Jennifer M., Clayton, Robert W., Bower, Dan J.

Journal:

Earth and Planetary Science Letters

Year:

2013

Language:

english

File:

PDF, 3.61 MB

english, 2013

20

Superficial simplicity of the 2010 El Mayor–Cucapah earthquake of Baja California in Mexico

Wei, Shengji, Fielding, Eric, Leprince, Sebastien, Sladen, Anthony, Avouac, Jean-Philippe, Helmberger, Don, Hauksson, Egill, Chu, Risheng, Simons, Mark, Hudnut, Kenneth, Herring, Thomas, Briggs, Richa

Journal:

Nature Geoscience

Year:

2011

Language:

english

File:

PDF, 4.53 MB

english, 2011

21

Lithospheric radial anisotropy beneath the Gulf of Mexico

Chu, Risheng, Ko, Justin Yen-Ting, Wei, Shengji, Zhan, Zhongwen, Helmberger, Don

Journal:

Earth and Planetary Science Letters

Year:

2017

Language:

english

File:

PDF, 2.24 MB

english, 2017

22

Earthquake ruptures modulated by waves in damaged fault zones

Huang, Yihe, Ampuero, Jean-Paul, Helmberger, Don V.

Journal:

Journal of Geophysical Research Solid Earth

Year:

2014

Language:

english

File:

PDF, 2.86 MB

english, 2014

23

The 2015 Gorkha (Nepal) earthquake sequence: I. Source modeling and deterministic 3D ground shaking

Wei, Shengji, Chen, Meng, Wang, Xin, Graves, Robert, Lindsey, Eric, Wang, Teng, Karakaş, Çağıl, Helmberger, Don

Journal:

Year:

2018

Language:

english

File:

PDF, 3.59 MB

english, 2018

24

Constructing synthetics from deep earth tomographic models

Sidao Ni, Xiaoming Ding, Don V. Helmberger

Journal:

Geophysical Journal International

Year:

2000

Language:

english

File:

PDF, 917 KB

english, 2000

25

Source model of the 11th July 2004 Zhongba earthquake revealed from the joint inversion of InSAR and seismological data

Shengji Wei, Sidao Ni, Xianjie Zha, Zhenjie Wang, Don Helmberger

Journal:

Earthquake Science

Year:

2011

Language:

english

File:

PDF, 1.76 MB

english, 2011

26

The structure of the lowermost mantle determined by short-period P-wave amplitudes

Larry J. Ruff, Don V. Helmberger

Journal:

Geophysical Journal International

Year:

1982

Language:

english

File:

PDF, 1.48 MB

english, 1982

27

Applications of the Kirchhoff-Helmholtz integral to problems in seismology

Patricia Scott, Don Helmberger

Journal:

Geophysical Journal International

Year:

1983

Language:

english

File:

PDF, 925 KB

english, 1983

28

Validating tomographic model with broad-band waveform modelling: an example from the LA RISTRA transect in the southwestern United States

Teh-Ru Alex Song, Don. V. Helmberger

Journal:

Geophysical Journal International

Year:

2007

Language:

english

File:

PDF, 878 KB

english, 2007

29

Upper-mantle structures beneath USArray derived from waveform complexity

Daoyuan Sun, Don Helmberger

Journal:

Geophysical Journal International

Year:

2011

Language:

english

File:

PDF, 4.91 MB

english, 2011

30

Low-velocity zone atop the 410-km seismic discontinuity in the northwestern United States

Alex Song, Teh-Ru, Helmberger, Don. V., Grand, Stephen P.

Journal:

Year:

2004

Language:

english

File:

PDF, 2.64 MB

english, 2004

31

Juan de Fuca subduction zone from a mixture of tomography and waveform modeling

Risheng Chu, Brandon Schmandt, Don V. Helmberger

Journal:

Journal of Geophysical Research: Solid Earth

Year:

2012

Language:

english

File:

PDF, 5.28 MB

english, 2012

32

Determining source parameters of moderate-size earthquakes from regional waveforms

Terry C. Wallace, Don V. Helmberger

Journal:

Physics of the Earth and Planetary Interiors

Year:

1982

Language:

english

File:

PDF, 928 KB

english, 1982

33

The 2005, Mw 7.6 Kashmir earthquake: Sub-pixel correlation of ASTER images and seismic waveforms analysis

Jean-Philippe Avouac, Francois Ayoub, Sebastien Leprince, Ozgun Konca, Don V. Helmberger

Journal:

Earth and Planetary Science Letters

Year:

2006

Language:

english

File:

PDF, 1.65 MB

english, 2006

34

Initiation of the great Mw 9.0 Tohoku–Oki earthquake

Risheng Chu, Shengji Wei, Don V. Helmberger, Zhongwen Zhan, Lupei Zhu, Hiroo Kanamori

Journal:

Earth and Planetary Science Letters

Year:

2011

Language:

english

File:

PDF, 1.32 MB

english, 2011

35

Sources of shaking and flooding during the Tohoku-Oki earthquake: A mixture of rupture styles

Shengji Wei, Robert Graves, Don Helmberger, Jean-Philippe Avouac, Junle Jiang

Journal:

Earth and Planetary Science Letters

Year:

2012

Language:

english

File:

PDF, 2.83 MB

english, 2012

36

Seismic evidence for ultralow-velocity zones beneath Africa and eastern Atlantic

Helmberger, Don, Ni, Sidao, Wen, Lianxing, Ritsema, Jeroen

Journal:

Journal of Geophysical Research

Year:

2000

Language:

english

File:

PDF, 1.34 MB

english, 2000

37

Mantle control of plate boundary deformation

Melbourne, Tim, Helmberger, Don

Journal:

Geophysical Research Letters

Year:

2001

Language:

english

File:

PDF, 520 KB

english, 2001

38

Anomalously steep dips of earthquakes in the 2011 Tohoku-Oki source region and possible explanations

Zhongwen Zhan, Don Helmberger, Mark Simons, Hiroo Kanamori, Wenbo Wu, Nadaya Cubas, Zacharie Duputel, Risheng Chu, Victor C. Tsai, Jean-Philippe Avouac, Kenneth W. Hudnut, Sidao Ni, Eric Hetland, Fran

Journal:

Earth and Planetary Science Letters

Year:

2012

Language:

english

File:

PDF, 2.26 MB

english, 2012

39

Dynamics of a phase change at the base of the mantle consistent with seismological observations

Sidorin, Igor, Gurnis, Michael, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

1999

Language:

english

File:

PDF, 2.02 MB

english, 1999

40

Velocity variations in the uppermost mantle beneath the southern Sierra Nevada and Walker Lane

Savage, Brian, Ji, Chen, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

2003

Language:

english

File:

PDF, 4.76 MB

english, 2003

41

Complexity of D″ in the presence of slab-debris and phase changes

Sun, Daoyuan, Song, Teh-Ru Alex, Helmberger, Don

Journal:

Geophysical Research Letters

Year:

2006

Language:

english

File:

PDF, 889 KB

english, 2006

42

Trans-Pacific upper mantle shear velocity structure

Tan, Ying, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

2007

Language:

english

File:

PDF, 4.02 MB

english, 2007

43

P and S waveform modeling of continental sub-lithospheric detachment at the eastern edge of the Rio Grande Rift

Song, Teh-Ru Alex, Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

2007

Language:

english

File:

PDF, 1.43 MB

english, 2007

44

Determination of earthquake focal depths and source time functions in central Asia using teleseismic P waveforms

Chu, Risheng, Zhu, Lupei, Helmberger, Don V.

Journal:

Geophysical Research Letters

Year:

2009

Language:

english

File:

PDF, 436 KB

english, 2009

45

Mushy magma beneath Yellowstone

Chu, Risheng, Helmberger, Don V., Sun, Daoyuan, Jackson, Jennifer M., Zhu, Lupei

Journal:

Geophysical Research Letters

Year:

2010

Language:

english

File:

PDF, 398 KB

english, 2010

46

A narrow, mid-mantle plume below southern Africa

Sun, Daoyuan, Helmberger, Don, Gurnis, Michael

Journal:

Geophysical Research Letters

Year:

2010

Language:

english

File:

PDF, 1.06 MB

english, 2010

47

Trans-Pacific whole mantle structure

Liu, Lijun, Tan, Ying, Sun, Daoyuan, Chen, Min, Helmberger, Don

Journal:

Journal of Geophysical Research

Year:

2011

Language:

english

File:

PDF, 4.72 MB

english, 2011

48

Seismic structure in central Mexico: Implications for fragmentation of the subducted Cocos plate

Dougherty, Sara L., Clayton, Robert W., Helmberger, Don V.

Journal:

Journal of Geophysical Research

Year:

2012

Language:

english

File:

PDF, 3.60 MB

english, 2012

49

Effect of velocity structure in D″ on PKP phases

Song, Xiaodong, Helmberger, Don V.

Journal:

Geophysical Research Letters

Year:

1993

Language:

english

File:

PDF, 470 KB

english, 1993

50

anisotropy of Earth's inner core

Song, Xiaodong, Helmberger, Don V.

Journal:

Geophysical Research Letters

Year:

1993

Language:

english

File:

PDF, 409 KB

english, 1993