Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!
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Kaj M. Johnson

Department of Earth and Atmospheric Sciences
Indiana University
Professor

Expertise: crustal deformation
 
 
About Me Publications
Dorsett, J. H., Johnson, K. M., Puel, S., & Becker, T. W. (2020). Inferring mantle viscosity in Southern California from early Ridgecrest earthquake postseismic deformation. Journal of Geophysical Research--Solid Earth, (submitted). SCEC Contribution 10780
Maurer, J. L., & Johnson, K. M. (2020, 08). Measuring uncertainty in surface strain rates in Southern California using multiple methods and elastic models.. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10710
Johnson, K. M., Dorsett, J. H., Puel, S., & Becker, T. W. (2020, 08). Using Postseismic Relaxation Test Southern California Viscosity Models. Poster Presentation at 2020 SCEC Annual Meeting. SCEC Contribution 10674
Dorsett, J. H., Johnson, K. M., Puel, S., & Becker, T. W. (2019, 08). Postseismic deformation and stress evolution following the 2019 M 7.1 and M 6.4 Ridgecrest earthquakes. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9789
Hammond, W. C., Blewitt, G., Kreemer, C. W., Burgette, R. J., Johnson, K. M., Meertens, C. M., & Boler, F. (2016, 09). The Ups and Downs of Southern California: Mountain Building, Sea Level Rise, and Earthquake Potential from Geodetic Imaging of Vertical Crustal Motion. Oral Presentation at 2016 SCEC Annual Meeting. SCEC Contribution 6402
Hammond, B. C., Johnson, K. M., Blewitt, G., Kreemer, C. W., Weldon, R. J., & Burgette, R. J. (2014, 04). GPS and InSAR constraints on vertical tectonic motion improve the estimate of slip rate of the San Andreas Fault in southern California. Poster Presentation at EGU General Assembly 2014. SCEC Contribution 6040
Gerstenberger, M. C., Van Dissen, R. J., Rollins, C., DiCaprio, C., Thingbaijim, K. S., Bora, S. S., Chamberlain, C., Christophersen, A., Coffey, G. L., Ellis, S., Iturrieta, P. C., Johnson, K. M., Litchfield, N. J., Nicol, A., Milner, K. R., Rastin, S. J., Rhoades, D. A., Seebeck, H., Shaw, B. E., Stirling, M., Wallace, L. M., Allen, T. I., Bradley, B. A., Charlton, D., Clark, K., Fraser, J., Griffin, J., Hamling, I., Howell, A., Hudson-Doyle, E., Hulsey, A., Jurgens, V., Kaiser, A. E., Kirkman, R., Langridge, R. M., Maurer, J. L., Rattenbury, M. S., Ristau, J., Schorlemmer, D., Townend, J., Villamor, P., & Williams, C. A. (2024). The Seismicity Rate Model for the 2022 Aotearoa New Zealand National Seismic Hazard Model. Bulletin of the Seismological Society of America, 114(1), 182-216. doi: 10.1785/0120230165. SCEC Contribution 13421
Johnson, K. M. (2024). Geodetically-inferred strain rates in the Western US and comparison with stress orientations and geologic moment rates. Journal of Geophysical Research, 129(4), e2023JB027472. doi: 10.1029/2023JB027472. SCEC Contribution 11842
Gerstenberger, M. C., Bora, S. S., Bradley, B. A., DiCaprio, C., Kaiser, A. E., Manea, E. F., Nicol, A., Rollins, C., Stirling, M., Thingbaijam, K. S., Van Dissen, R. J., Abbott, E. R., Atkinson, G. M., Chamberlain, C., Christophersen, A., Clark, K., Coffey, G. L., de la Torre, C. A., Ellis, S., Fraser, J., Graham, K., Griffin, J., Hamling, I., Hill, M. P., Howell, A., Hulsey, A., Hutchinson, J., Iturrieta, P. C., Johnson, K. M., Jurgens, V., Kirkman, R., Langridge, R. M., Lee, R. L., Litchfield, N. J., Maurer, J. L., Milner, K. R., Rastin, S., Rattenbury, M. S., Rhoades, D. A., Ristau, J., Schorlemmer, D., Seebeck, H., Shaw, B. E., Stafford, P. J., Stolte, A. C., Townend, J., Villamor, P., Wallace, L. M., Weatherill, G., Williams, C. A., & Wotherspoon, L. M. (2023). The 2022 Aotearoa New Zealand National Seismic Hazard Model: Process, Overview, and Results. Bulletin of the Seismological Society of America, 114(1), 7-36. doi: 10.1785/0120230182. SCEC Contribution 13422
Field, E. H., Milner, K. R., Hatem, A., Powers, P. M., Pollitz, F. F., Llenos, A. L., Zeng, Y., Johnson, K. M., Shaw, B. E., McPhillips, D., Thompson, J., Shumway, A. M., Michael, A. J., Shen, Z., Evans, E. L., Hearn, E. H., Mueller, C. S., Frankel, A., Petersen, M. D., DuRoss, C. B., Briggs, R., Page, M. T., Rubinstein, J. L., & Herrick, J. (2023). The USGS 2023 Conterminous U.S. Time‐Independent Earthquake Rupture Forecast. Bulletin of the Seismological Society of America,. doi: 10.1785/0120230120. SCEC Contribution 13392
Petersen, M. D., Shumway, A. M., Powers, P. M., Field, E. H., Moschetti, M. P., Jaiswal, K. S., Milner, K. R., Rezaeian, S., Frankel, A., Llenos, A. L., Michael, A. J., Altekruse, J., Ahdi, S. K., Withers, K. B., Mueller, C. S., Zeng, Y., Chase, R., Salditch, L., Luco, N., Rukstales, K. S., Herrick, J. A., Girot, D. L., Aagaard, B. T., Bender, A. M., Blanpied, M. L., Briggs, R., Boyd, O. S., Clayton, B. S., DuRoss, C. B., Evans, E. L., Haeussler, P., Hatem, A., Haynie, K. L., Hearn, E. H., Johnson, K. M., Kortum, Z. A., Kwong, N. S., Makdisi, A. J., Mason, B., McNamara, D., McPhillips, D., Okubo, P., Page, M. T., Pollitz, F. F., Rubinstein, J. L., Shaw, B. E., Shen, Z., Shiro, B., Smith, J. A., Stephenson, W. J., Thompson, E. M., Thompson Jobe, J. A., Wirth, E., & Witter, R. C. (2023). The 2023 US 50-State National Seismic Hazard Model: Overview and implications. Earthquake Spectra,. doi: 10.1177/87552930231215428. SCEC Contribution 13391
Maurer, J. L., Johnson, K. M., & Segall, P. (2018). Bounding the Moment Deficit Rate on Crustal Faults Using Geodetic Data: Application to Southern California. Journal of Geophysical Research: Solid Earth,. doi: 10.1029/2018JB016097. SCEC Contribution 9000
Johnson, K. M., Hammond, W., Burgette, R. J., Marshall, S. T., & Sorlien, C. (2018). Present-day and Long-term Uplift Across the Western Transverse Ranges of Southern California. Journal of Geophysical Research--Solid Earth,. doi: 10.1002/essoar.10502410.1. SCEC Contribution 8165
Hammond, W. C., Burgette, R. J., Johnson, K. M., & Blewitt, G. (2017). Uplift of the Western Transverse Ranges and Ventura Area of Southern California: A Four-Technique Geodetic Study Combining GPS, InSAR, Leveling, and Tide Gauges. Journal of Geophysical Research - Solid Earth, 123. doi: 10.1002/2017JB014499. SCEC Contribution 8006
Field, E. H., Jordan, T. H., Page, M. T., Milner, K. R., Shaw, B. E., Dawson, T. E., Biasi, G. P., Parsons, T., Hardebeck, J. L., Michael, A. J., Weldon, R. J., Powers, P. M., Johnson, K. M., Zeng, Y., Felzer, K. R., van der Elst, N. J., Madden, C., Arrowsmith, R., Werner, M. J., & Thatcher, W. R. (2017). A Synoptic View of the Third Uniform California Earthquake Rupture Forecast (UCERF3). Seismological Research Letters, 88(5), 1259-1267. doi: 10.1785/0220170045. SCEC Contribution 7165
Field, E. H., Biasi, G. P., Bird, P., Dawson, T., Felzer, K. R., Jackson, D. D., Johnson, K. M., Jordan, T. H., Madden, C. L., Michael, A. J., Milner, K. R., Page, M. T., Parsons, T., Powers, P. M., Shaw, B. E., Thatcher, W. R., Weldon, R. J., & Zeng, Y. (2015). Long‐Term Time‐Dependent Probabilities for the Third Uniform California Earthquake Rupture Forecast (UCERF3). Bulletin of the Seismological Society of America, 105(2A), 511-543. doi: 10.1785/0120140093. SCEC Contribution 2099
Field, E. H., Biasi, G. P., Bird, P., Dawson, T., Felzer, K. R., Jackson, D. D., Johnson, K. M., Jordan, T. H., Madden, C. L., Michael, A. J., Milner, K. R., Page, M. T., Parsons, T., Powers, P. M., Shaw, B. E., Thatcher, W. R., Weldon, R. J., & Zeng, Y. (2015). Long-Term Time-Dependent Probabilities for the Third Uniform California Earthquake Rupture Forecast (UCERF 3). Bulletin of the Seismological Society of America, 105(2a), 511-543. doi: 10.1785/0120140093. SCEC Contribution 2066
Maurer, J. L., & Johnson, K. M. (2014). Fault coupling and potential for earthquakes on the creeping section of the Central San Andreas Fault. Journal of Geophysical Research, 119(5), 4414–4428. doi: 10.1002/2013JB010741. SCEC Contribution 1804
Johnson, K. M. (2013). Is stress accumulating on the creeping section of the San Andreas fault?. Geophysical Research Letters, 40(23), 6101-6105. doi: 10.1002/2013GL058184. SCEC Contribution 1808
Johnson, K. M. (2013). Slip rates and off-fault deformation in southern California inferred from GPS data and models. Journal of Geophysical Research, 118(10), 5643–5664. doi: 10.1002/jgrb.50365. SCEC Contribution 1805
Field, E. H., Biasi, G. P., Bird, P., Dawson, T., Felzer, K. R., Jackson, D. D., Johnson, K. M., Jordan, T. H., Madden Madugo, C. L., Michael, A. J., Milner, K. R., Page, M. T., Parsons, T., Powers, P. M., Shaw, B. E., Thatcher, W. R., Weldon, R. J., & Zeng, Y. (2013). Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3)—The Time-Independent Model (1165). , : . SCEC Contribution 1792
Chuang, Y. Y., & Johnson, K. M. (2011). Reconciling geologic and geodetic fault-slip-rate discrepancies in southern California: consideration of non-steady mantle flow and lower crustal fault creep. Geology,. SCEC Contribution 1455
Hearn, E. H., Johnson, K. M., & Thatcher, W. R. (2010). Space geodetic data improve seismic hazard assessment in California: Workshop on incorporating geodetic surface deformation data into UCERF3; Pomona, California, 1-2 April 2010. Eos, Transactions, American Geophysical Union, 91(38), 336. doi: 10.1029/2010EO380007. SCEC Contribution 1878
Johnson, K. M., & Segall, P. (2004). Viscoelastic earthquake cycle models with deep stress-driven creep along the San Andreas fault system. Journal of Geophysical Research, 109(B10403). doi: 10.1029/2004JB003096. SCEC Contribution 775

Last updated Apr 22, 2024.