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Found 65 results

2008

Wide-scale detection of earthquake waveform doublets and further evidence for inner core super-rotation
Zhang, J.; Richards, P. G.; Schaff, D. P.
Geophysical Journal International
(2008)
Issue:
3
Pages:
993-1006
Volume:
174
DOI 10.1111/j.1365-246X.2008.03856.x

2007

Seismic signature
Richards, P. G.; Kim, W. Y.
Nature Physics
(2007)
Issue:
1
Pages:
4-6
Volume:
3
Doi 10.1038/Nphys495
Vitaly Ivanovich Khalturin (1927-2007) - In memoriam
Hamburger, M.; Kopnichev, Y.; Levshin, A.; Martynov, V.; Mikhailova, N.; Monar, P.; Richards, P. G.; Roecker, S.; Simpson, D.; Tucker, B. E.; Wesson, R.
Seismological Research Letters
(2007)
Issue:
6
Pages:
577-578
Volume:
78

2006

The applicability of modern methods of earthquake location
Richards, P. G.; Waldhauser, F.; Schaff, D.; Kim, W. Y.
Pure and Applied Geophysics
(2006)
Issue:
2-3
Pages:
351-372
Volume:
163
DOI 10.1007/s00024-005-0019-5

2005

Inner core differential motion confirmed by earthquake waveform doublets
Zhang, J.; Song, X. D.; Li, Y. C.; Richards, P. G.; Sun, X. L.; Waldhauser, F.
Science
(2005)
Issue:
5739
Pages:
1357-1360
Volume:
309
DOI 10.1126/science.1113193
Keiiti Aki (1930-2005) - In memoriam
Richards, P. G.
Seismological Research Letters
(2005)
Issue:
5
Pages:
551-553
Volume:
76
Keiiti Aki (1930-2005) - Seismologist extraordinaire. Obituary
Richards, P. G.
Nature
(2005)
Issue:
7046
Pages:
1176-1176
Volume:
435
Doi 10.1038/4351176a
3D first-arrival regional calibration model of northern Eurasia
Morozov, I. B.; Morozova, E. A.; Smithson, S. B.; Richards, P. G.; Khalturin, V. I.; Solodilov, L. N.
Bulletin of the Seismological Society of America
(2005)
Issue:
3
Pages:
951-964
Volume:
95
Doi 10.1785/0120030173
Understanding the differences between three teleseismic m(b) scales
Granville, J. P.; Richards, P. G.; Kim, W. Y.; Sykes, L. R.
Bulletin of the Seismological Society of America
(2005)
Issue:
5
Pages:
1809-1824
Volume:
95
Doi 10.1785/0120040159
A review of nuclear testing by the Soviet Union at Novaya Zemlya, 1955–1990
Khalturin, V. I.; Rautian, T. G.; Richards, P. G.; Leith, W. S.
Science & Global Security
(2005)
Pages:
1-42
Volume:
13
Double-difference relocation of earthquakes in central-western China, 1992-1999
Yang, Z. X.; Waldhauser, F.; Chen, Y. T.; Richards, P. G.
Journal of Seismology
(2005)
Issue:
2
Pages:
241-264
Volume:
9
DOI 10.1007/s10950-005-3988-z
Equivalent volume sources for explosions at depth: Theory and observations
Richards, P. G.; Kim, W. Y.
Bulletin of the Seismological Society of America
(2005)
Issue:
2
Pages:
401-407
Volume:
95

2004

Lg-wave cross correlation and double-difference location: Application to the 1999 Xiuyan, China, sequence
Schaff, D. P.; Richards, P. G.
Bulletin of the Seismological Society of America
(2004)
Issue:
3
LDEO Publication Number:
6572
Pages:
867-879
Volume:
94
Lop Nor revisited: Underground nuclear explosion locations, 1976-1996, from double-difference analysis of regional and teleseismic data
Waldhauser, F.; Schaff, D.; Richards, P. G.; Kim, W. Y.
Bulletin of the Seismological Society of America
(2004)
Issue:
5
LDEO Publication Number:
6650
Pages:
1879-1889
Volume:
94
Reference events for regional seismic phases at IMS stations in China
Waldhauser, F.; Richards, P. G.
Bulletin of the Seismological Society of America
(2004)
Issue:
6
Pages:
2265-2279
Volume:
94
Repeating seismic events in China
Schaff, D. P.; Richards, P. G.
Science
(2004)
Issue:
5661
Pages:
1176-1178
Volume:
303

2003

Using earthquake doublets to study inner core rotation and seismicity catalog precision
Li, A. Y.; Richards, P. G.
Geochemistry Geophysics Geosystems
(2003)
Pages:
-
Volume:
4
Doi 10.1029/2002gc000379

2001

A study of small magnitude seismic events during 1961-1989 on and near the Semipalatinsk Test Site, Kazakhstan
Khalturin, V. I.; Rautian, T. G.; Richards, P. G.
Pure and Applied Geophysics
(2001)
Issue:
1-2
Pages:
143-171
Volume:
158

2000

Determination of seismic energy from Lg waves
Shi, J. H.; Richards, P. G.; Kim, W. Y.
Bulletin of the Seismological Society of America
(2000)
Issue:
2
Pages:
483-493
Volume:
90

1999

Theoretical global seismology
Richards, P. G.
Nature
(1999)
Issue:
6719
Pages:
489-490
Volume:
397

1998

The corner frequencies and stress drops of intraplate earthquakes in the northeastern United States
Shi, J. H.; Kim, W. Y.; Richards, P. G.
Bulletin of the Seismological Society of America
(1998)
Issue:
2
Pages:
531-542
Volume:
88
The seismic signal strength of chemical explosions
Khalturin, V. I.; Rautian, T. G.; Richards, P. G.
Bulletin of the Seismological Society of America
(1998)
Issue:
6
Pages:
1511-1524
Volume:
88
Seismology - Monitoring nuclear tests
Barker, B.; Clark, M.; Davis, P.; Fisk, M.; Hedlin, M.; Israelsson, H.; Khalturin, V.; Kim, W. Y.; McLaughlin, K.; Meade, C.; Murphy, J.; North, R.; Orcutt, J.; Powell, C.; Richards, P. G.; Stead, R.; Stevens, J.; Vernon, F.; Wallace, T.
Science
(1998)
Issue:
5385
Pages:
1967-1968
Volume:
281

1997

Testing the nuclear test-ban treaty
Richards, P. G.; Kim, W. Y.
Nature
(1997)
Issue:
6653
Pages:
781-782
Volume:
389
Discrimination of earthquakes and explosions in southern Russia using regional high-frequency three-component data from the IRIS/JSP caucasus network
Kim, W. Y.; Aharonian, V.; LernerLam, A. L.; Richards, P. G.
Bulletin of the Seismological Society of America
(1997)
Issue:
3
Pages:
569-588
Volume:
87

1996

Variability of crustal attenuation in the northeastern United States from Lg waves
Shi, J. H.; Kim, W. Y.; Richards, P. G.
Journal of Geophysical Research-Solid Earth
(1996)
Issue:
B11
Pages:
25231-25242
Volume:
101
Song, X. D.; Richards, P. G.
Nature
(1996)
Issue:
6588
Pages:
221-224
Volume:
382

1995

Near-Field Deformation Seen on Distant Broad-Band Seismograms
Vidale, J. E.; Goes, S.; Richards, P. G.
Geophysical Research Letters
(1995)
Issue:
1
Pages:
1-4
Volume:
22

1994

High-Frequency Spectra of Regional Phases from Earthquakes and Chemical Explosions
Kim, W. Y.; Simpson, D. W.; Richards, P. G.
Bulletin of the Seismological Society of America
(1994)
Issue:
5
Pages:
1365-1386
Volume:
84
Empirical Measurements of Tectonic Moment Release in Nuclear-Explosions from Teleseismic Surface-Waves and Body Waves
Ekstrom, G.; Richards, P. G.
Geophysical Journal International
(1994)
Issue:
1
Pages:
120-140
Volume:
117

1993

Accurate Locations of Nuclear-Explosions in Balapan, Kazakhstan, 1987 to 1989
Thurber, C. H.; Quin, H. R.; Richards, P. G.
Geophysical Research Letters
(1993)
Issue:
5
Pages:
399-402
Volume:
20
Call for Extended Moratorium
Richards, P. G.
Nature
(1993)
Issue:
6434
Pages:
189-189
Volume:
364
Seismology - Testing the Test-Ban Treaty
Richards, P. G.
Nature
(1993)
Issue:
6434
Pages:
188-189
Volume:
364
Discrimination of Earthquakes and Explosions in the Eastern United-States Using Regional High-Frequency Data
Kim, W. Y.; Simpson, D. W.; Richards, P. G.
Geophysical Research Letters
(1993)
Issue:
14
Pages:
1507-1510
Volume:
20

1992

A Survey of Blasting Activity in the United-States
Richards, P. G.; Anderson, D. A.; Simpson, D. W.
Bulletin of the Seismological Society of America
(1992)
Issue:
3
Pages:
1416-1433
Volume:
82

1991

Generalized Ray Theory for Seismic-Waves in Structures with Planar Nonparallel Interfaces
Richards, P. G.; Witte, D. C.; Ekstrom, G.
Bulletin of the Seismological Society of America
(1991)
Issue:
4
Pages:
1309-1331
Volume:
81
Leadership Needed
Richards, P. G.
Nature
(1991)
Issue:
6352
Pages:
347-347
Volume:
354

1990

Seismic Discrimination of Nuclear-Explosions
Richards, P. G.; Zavales, J.
Annual Review of Earth and Planetary Sciences
(1990)
Pages:
257-286
Volume:
18
The Stability of Rms Lg Measurements and Their Potential for Accurate Estimation of the Yields of Soviet Underground Nuclear-Explosions
Hansen, R. A.; Ringdal, F.; Richards, P. G.
Bulletin of the Seismological Society of America
(1990)
Issue:
6
Pages:
2106-2126
Volume:
80

1987

Toward a New Test Ban Regime
Richards, P. G.; Lindh, A.
Issues in Science and Technology
(1987)
Issue:
3
Pages:
101-108
Volume:
3

1984

On Wave Fronts and Interfaces in Anelastic Media
Richards, P. G.
Bulletin of the Seismological Society of America
(1984)
Issue:
6
Pages:
2157-2165
Volume:
74

1983

The Horizontal Propagation of P-Waves through Scattering Media - Analog Model Studies Relevant to Long-Range Pn Propagation
Menke, W.; Richards, P. G.
Bulletin of the Seismological Society of America
(1983)
Issue:
1
Pages:
125-142
Volume:
73
The Apparent Attenuation of a Scattering Medium
Richards, P. G.; Menke, W.
Bulletin of the Seismological Society of America
(1983)
Issue:
4
Pages:
1005-1021
Volume:
73

1982

On Extending Biots Theory of Low-Frequency Acoustic Scatter About a Rough Fluid-Rigid Interface to More General Acoustic Media
Menke, W.; Richards, P. G.
Journal of the Acoustical Society of America
(1982)
Issue:
5
Pages:
1101-1105
Volume:
71

1980

A Comparison of Synthetic Seismograms of Core Phases Generated by the Full-Wave Theory and by the Reflectivity Method
Choy, G. L.; Cormier, V. F.; Kind, R.; Muller, G.; Richards, P. G.
Geophysical Journal of the Royal Astronomical Society
(1980)
Issue:
1
Pages:
21-39
Volume:
61
Crust-Mantle Whispering Gallery Phases - a Deterministic Model of Teleseismic Pn Wave-Propagation
Menke, W. H.; Richards, P. G.
Journal of Geophysical Research
(1980)
Issue:
Nb10
Pages:
5416-5422
Volume:
85

1979

Theoretical Seismic-Wave Propagation
Richards, P. G.
Reviews of Geophysics
(1979)
Issue:
2
Pages:
312-328
Volume:
17
Elementary Solutions to Lambs Problem for a Point Source and Their Relevance to 3-Dimensional Studies of Spontaneous Crack-Propagation
Richards, P. G.
Bulletin of the Seismological Society of America
(1979)
Issue:
4
Pages:
947-956
Volume:
69

1978

Basis for Quantifying Seismic Sources from Body Wave Data
Richards, P. G.
Transactions-American Geophysical Union
(1978)
Issue:
12
Pages:
1139-1139
Volume:
59

1977

Full-Wave Theory Applied to a Discontinuous Velocity Increase - Inner Core Boundary
Cormier, V. F.; Richards, P. G.
Journal of Geophysics-Zeitschrift Fur Geophysik
(1977)
Issue:
1-2
Pages:
3-31
Volume:
43

1976

Linear Constraint on Different Measurements of Strain in Earth
Richards, P. G.
Transactions-American Geophysical Union
(1976)
Issue:
12
Pages:
1007-1007
Volume:
57
Adequacy of Plane-Wave Reflection-Transmission Coefficients in Analysis of Seismic Body Waves
Richards, P. G.
Bulletin of the Seismological Society of America
(1976)
Issue:
3
Pages:
701-717
Volume:
66
Scattering of Elastic-Waves from Depth-Dependent Inhomogeneities
Richards, P. G.; Frasier, C. W.
Transactions-American Geophysical Union
(1976)
Issue:
8
Pages:
601-602
Volume:
57
Scattering of Elastic-Waves from Depth-Dependent Inhomogeneities
Richards, P. G.; Frasier, C. W.
Geophysics
(1976)
Issue:
3
Pages:
441-458
Volume:
41
Damping of Core Waves by Qamar,a and Eisenberg,a - Comment
Cormier, V. F.; Richards, P. G.
Journal of Geophysical Research
(1976)
Issue:
17
Pages:
3066-3068
Volume:
81
Dynamic Motions near an Earthquake Fault - 3-Dimensional Solution
Richards, P. G.
Bulletin of the Seismological Society of America
(1976)
Issue:
1
Pages:
1-32
Volume:
66
Synthetic Seismograms of Core Phases Calculated by a Frequency-Dependent Full-Wave Theory
Choy, G. L.; Richards, P. G.
Transactions-American Geophysical Union
(1976)
Issue:
4
Pages:
282-282
Volume:
57

1975

Further Properties of Rupture Process Associated with Brittle Shear Fracture
Boatwright, J. L.; Richards, P. G.
Transactions-American Geophysical Union
(1975)
Issue:
12
Pages:
1029-1029
Volume:
56
Pulse Distortion and Hilbert Transformation in Multiply Reflected and Refracted Body Waves
Choy, G. L.; Richards, P. G.
Bulletin of the Seismological Society of America
(1975)
Issue:
1
Pages:
55-70
Volume:
65
Theoretical Seismology
Richards, P. G.
Reviews of Geophysics
(1975)
Issue:
3
Pages:
295-&
Volume:
13
Comparison of Strong Ground Motion from Several Dislocation Models
Anderson, J. G.; Richards, P. G.
Geophysical Journal of the Royal Astronomical Society
(1975)
Issue:
2
Pages:
347-373
Volume:
42
Spatial and Temporal Variations in Ts-Tp and in P-Wave Residuals at Blue Mountain Lake, New-York - Application to Earthquake Prediction
Aggarwal, Y. P.; Sykes, L. R.; Simpson, D. W.; Richards, P. G.
Journal of Geophysical Research
(1975)
Issue:
5
Pages:
718-732
Volume:
80

1974

Weakly Coupled Potentials for High-Frequency Elastic-Waves in Continuously Stratified Media
Richards, P. G.
Bulletin of the Seismological Society of America
(1974)
Issue:
15
Pages:
1575-1588
Volume:
64

1973

Explanation of Large Amplitudes in Multiple Core Phases Pmkp
Richards, P. G.
Transactions-American Geophysical Union
(1973)
Issue:
4
Pages:
374-374
Volume:
54
Temporal Fluctuations of P and S Velocities in an Earthquake Source Region
Richards, P. G.; Aggarwal, Y. P.
Transactions-American Geophysical Union
(1973)
Issue:
11
Pages:
1134-1134
Volume:
54