Dayanthie S. Weeraratne
Full Professor
California State University, Northridge

Postdoc Carnegie Institution of Washington, DTM
Ph. D. Brown University 
M.S. University of Oregon 
B.S. University of Oregon 

Geology of the Planet Earth (GEOL 101)
Geology of the Earth, Moons, and Planets
Mathematical Tools for Geology (GEOL 452/L)
Geodynamics of the Earth and Planetary Interiors (GEOL 546/L)
Seismology (GEOL 548/L)

Research interests

During a hiking trip many years ago to the site of the Mt. St. Helen's volcanic eruption, I was first exposed to indications of activity in the Earth's interior. My curiousity and interest in solid Earth geophysics has grown through continued research using techniques in seismology and geophysical fluid dynamics. I am particularly interested in evolutionary processes for continental lithospheric formation, marine geophysical study of oceanic mantle dynamics, intraplate volcanism, and hotspot-ridge interactions, as well as whole mantle convection problems for the Earth and other planets. Observations from seismology, geochemistry, and geological studies are vitally intertwined with theoretical and geodynamic modeling and these interdisciplinary fields can help constrain complex geological systems.


  • Marine Seismology

  • South Pacific (GLIMPSE Project)
    NW Pacific (PLATE Project)
    Channel Islands (ALBACORE Project)

  • Landlubbers Seismology

  • Rayleigh waves in Tanzania
    Western Himalayan Syntaxis
    Eastern Himalayan Syntaxis

                                                Geophysical Fluid Dynamics

    Core Formation
    Mantle convection
    Viscous fingering

    Geophysical Fluid Dynamics

    Marine Seismology


    Geoscience Departments (U.S. & Canada)
    Earthquakes around the world, today!
    International Tsunami Information Center
    Indian Ocean Tsunami
    Cascades Volcano Observatory
    USGS Earthquake Hazards
    General seismology links
    NASA: Rovers land on Mars!