Item talk:Q47051

orcid:

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usgs_staff_profile:

 meta:
   url: https://www.usgs.gov/staff-profiles/malcolm-j-s-johnston
   timestamp: '2024-01-30T13:40:14.107016'
   status_code: 200
 profile:
   name: Malcolm J. S. Johnston
   name_qualifier: null
   titles:
   - Research Geophysicist
   organizations:
   - !!python/tuple
     - Earthquake Hazards Program
     - https://www.usgs.gov/programs/earthquake-hazards
   email: mal@usgs.gov
   orcid: 0000-0003-4326-8368
   intro_statements:
   - The focus of my research has been on the mechanics of failure of active faults
     and volcanoes.
   expertise_terms: []
   professional_experience:
   - Research Geophysicist Emeritus - U.S. Geological Survey
   - '1970-1972: Assistant Professor, Dept. Geology and Mineralogy, University of
     Michigan'
   - '1972: Visiting Lecturer (Assist Prof.), Department of Physics, University of
     Newcastle, England'
   - '1991-1996: Consulting Professor, Dept. of Geophysics, Stanford University'
   - 1983-Visiting Professor, University of Trieste, Trieste, Italy
   - '1972-2013: Project Chief/Research Geophysicist U.S. Geological Survey, Menlo
     Park, CA'
   - "1979\u20131999: Visiting Scientist, US/China Exchange Program, Continuous Magnetic\
     \ Field and Geodetic Arrays Along Active Faults in Yunnan and Near Beijing,\
     \ China"
   - '2002: Visiting Scientist, Hawaii Volcano Observatory'
   education:
   - Ph.D. (1970) Geophysics/Physics, University of Queensland, Australia
   - B.Sc(Hons)  (1967) Physics/Geophysics, University of Queensland, Australia
   - B.Sc. (1965) Physics,  University of Queensland, Australia
   affiliations:
   - '2001-present: Co-chairman and Executive Committee of International Union of
     Geology and Geophysics (IUGG) Working Group on Electromagnetic Studies of Earthquakes
     and Volcanoes (EMSEV)'
   - 1996 - Fellow, Japanese Society for Promotion of Science (JSPS), University
     of Tokyo
   honors: []
   abstracts: []
   personal_statement: "My research focuses on the physical processes occurring prior\
     \ to, during, and following earthquakes and volcanic eruptions and their implications\
     \ in observations of ground displacement, strain, tilt, electric and magnetic\
     \ fields using data from state-of-the-art borehole instrumentation. These data\
     \ show the details of aseismic fault failure, preseismic, coseismic and postseismic\
     \ deformation, earthquake nucleation, volcanic deformation and volcanic processes.\
     \ Theoretical modeling of these processes suggests testable physical explanations\
     \ in term of physics of failure, the role of fluids in the crust, strain redistribution,\
     \ and likely properties of fault zone materials. Very near-field data on slow\
     \ slip, earthquakes and dynamic rupture were obtained in fault zones at 3.6\
     \ km depth in South Africa, a few 10\u2019s of meters from earthquakes from\
     \ M=-4.5 to M=2."