2026 Ralph J. Archuleta: Earth Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Earth Science	56	2420	2199	1017	902	123	11438

Research.com Recognitions

2011 - Fellow of American Geophysical Union (AGU)

Overview

Ralph J. Archuleta is affiliated with the University of California, Santa Barbara in the United States. Their research primarily focuses on earthquake and tectonic studies, seismic performance and analysis, and seismic waves and analysis, encompassing a total of 18, 14, and 8 publications respectively in these areas. Additional topics include geological and geochemical analysis, high-pressure geophysics and materials, geological and geophysical studies worldwide, and rock mechanics and modeling.

The main fields of study for this scientist are Earth and Planetary Sciences and Engineering, which include 19 and 8 publications respectively. Within these fields, their subfield contributions are mainly in Geophysics (19 publications), Civil and Structural Engineering (7 publications), with further work in Mechanics of Materials, Artificial Intelligence, and Management, Monitoring, Policy and Law.

Archuleta's scholarly output has been frequently published in the following venues:

Bulletin of the Seismological Society of America
Seismological Research Letters
Tectonics
Earthquake Spectra

Notable recent papers authored or co-authored by Archuleta include:

"Seismic Hazard Analyses From Geologic and Geomorphic Data: Current and Future Challenges" (2020, Tectonics)
"NGA-Subduction research program" (2021, Earthquake Spectra)
"Two Empirical Double-Corner-Frequency Source Spectra and Their Physical Implications" (2020, Bulletin of the Seismological Society of America)
"Variability of Spectral Estimates of Stress Drop Reconciled by Radiated Energy" (2022, Bulletin of the Seismological Society of America)
"Source-Scaling Comparison and Validation for Ridgecrest, California: Radiated Energy, Apparent Stress, and Mw Using the Coda Calibration Tool (2.6

Frequent collaborators in their research include Chen Ji, Gail M. Atkinson, Grace A. Parker, Kevin Mayeda, and Dino Bindi. These coauthors have contributed to multiple publications alongside Archuleta, reflecting interdisciplinary teamwork across earthquake science and engineering.

Archuleta has been recognized as a Fellow of the American Geophysical Union (AGU) since 2011. This acknowledgment reflects their involvement and standing within the geophysical community.

Best Publications

A faulting model for the 1979 Imperial Valley earthquake

Ralph J. Archuleta

702
Citations
3D Heterogeneous Staggered-grid Finite-difference Modeling of Seismic Motion with Volume Harmonic and Arithmetic Averaging of Elastic Moduli and Densities

Peter Moczo;Jozef Kristek;Václav Vavryčuk;Ralph J. Archuleta

527
Citations
What is a reference site

Jamison H. Steidl;Alexei G. Tumarkin;Ralph J. Archuleta

525
Citations
Three-Dimensional Dynamic Simulation of the 1992 Landers Earthquake

K. B. Olsen;R. Madariaga;R. Madariaga;R. J. Archuleta;R. J. Archuleta

501
Citations
Site amplification in the San Fernando Valley, California: Variability of site-effect estimation using the S-wave, coda, and H/V methods

Luis Fabián Bonilla;Jamison H. Steidl;Grant T. Lindley;Alexei G. Tumarkin

489
Citations
Source parameters of the 1980 Mammoth Lakes, California, earthquake sequence

Ralph J. Archuleta;Edward Cranswick;Charles S. Mueller;Paul Spudich

471
Citations
The SCEC/USGS Dynamic Earthquake Rupture Code Verification Exercise

R.A. Harris;M. Barall;R. Archuleta;E. Dunham

345
Citations
Earthquakes on Dipping Faults: The Effects of Broken Symmetry

David D. Oglesby;Ralph J. Archuleta;Stefan B. Nielsen

315
Citations
Evidence for a Supershear Transient during the 2002 Denali Fault Earthquake

Eric M. Dunham;Ralph J. Archuleta

299
Citations
Three-dimensional simulation of earthquakes on the Los Angeles fault system

Kim B. Olsen;Ralph J. Archuleta

295
Citations
Three-Dimensional Simulation of a Magnitude 7.75 Earthquake on the San Andreas Fault

Kim B. Olsen;Ralph J. Archuleta;Joseph R. Matarese

283
Citations
Fault steps and the dynamic rupture process: 2-D numerical simulations of a spontaneously propagating shear fracture

Ruth A. Harris;Ralph J. Archuleta;Steven M. Day

273
Citations
Modeling dynamic rupture in a 3D earthquake fault model

R. Madariaga;K. Olsen;R. Archuleta

268
Citations
Prediction of Broadband Ground-Motion Time Histories: Hybrid Low/High- Frequency Method with Correlated Random Source Parameters

Pengcheng Liu;Ralph J. Archuleta;Stephen H. Hartzell

249
Citations
What is Sigma of the Stress Drop

Fabrice Cotton;Ralph Archuleta;Mathieu Causse

224
Citations
Hysteretic and Dilatant Behavior of Cohesionless Soils and Their Effects on Nonlinear Site Response: Field Data Observations and Modeling

Luis Fabián Bonilla;Ralph J. Archuleta;Daniel Lavallée

202
Citations
Borehole Response Studies at the Garner Valley Downhole Array, Southern California

Luis Fabián Bonilla;Jamison H. Steidl;Jean-Christophe Gariel;Ralph J. Archuleta

201
Citations
Effects of fault finiteness on near-source ground motion

Ralph J. Archuleta;Stephen H. Hartzell

199
Citations
Efficient Methods to Simulate Planar Free Surface in the 3D 4th-Order Staggered-Grid Finite-Difference Schemes

Jozef Kristek;Peter Moczo;Ralph J. Archuleta

195
Citations
The Three-Dimensional Dynamics of Dipping Faults

David D. Oglesby;Ralph J. Archuleta;Stefan B. Nielsen

191
Citations
Horizontal-to-vertical spectral ratio and geological conditions: The case of Garner Valley Downhole Array in southern California

N. Theodulidis;P.-Y. Bard;R. Archuleta;M. Bouchon

185
Citations

Frequent Co-Authors

Eric M. Dunham Stanford University

Kim B. Olsen San Diego State University

Steven M. Day San Diego State University

Stephen H. Hartzell United States Geological Survey

Luis Fabian Bonilla Université Gustave Eiffel

Chen Ji University of California, Santa Barbara

Jean-Paul Ampuero Institut de Recherche pour le Développement

Stefan Nielsen Durham University

Michel Bouchon Centre national de la recherche scientifique, CNRS

Raul Madariaga École Normale Supérieure

External Links

Personal website of Ralph J. Archuleta

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