California Legislation: Public earthquake early warning for the state Progress of the legislation that would build a public warning system for the state Publications ...all publications Berkeley Seismological Laboratory - Annual Report 2011-2012. Includes research summaries and operational reports: director's report | group contributions | all research contributions | full report Obrebski, O., R.M. Allen, F. Zhang, J. Pan, Q. Wu,S.-H. Hung (2012) Shear wave tomography of China using joint inversion of body and surface wave constraints J. Geophys. Res. abstract | reprint Allen, R.M. (2012) Transforming Earthquake Detection? Science abstract | reprint Allen, R.M. and A. Ziv (2011) Application of real-time GPS to earthquake early warning Geophys. Res. Lett. abstract | reprint Porritt, R.W., R.M. Allen, D.C. Boyarko, M.R. Brudzinski (2011) Investigation of Cascadia Segmentation with Ambient Noise Tomography Earth Planet. Sci. Lett. abstract | reprint | data

Richard M Allen Director, Seismological Laboratory. Professor, Dept. Earth & Planetary Science. Allen CV Opportunities for students and postdocs

Research groups and interests
Earth Imaging more... The Earth Imaging group uses a wide variety of seismological techniques to image 3D Earth structure in an effort to understand the dynamic processes responsible for deformation, volcanism and earthquakes at the Earth's surface.				Realtime Seismology more... The Realtime Seismology group is interested in all aspects of rapid geophysical data characterization. The desire for realtime information is motivated by hazard mitigation objectives, and the development of such techniques drives fundamental research into earthquake source processes.
Observational systems Data is at the heart of all our research activities, so we also work to design, develop and implement new geophysical observational systems in response to scientific and societal needs including instrumentation, processing software and communications. Our ability to participate in this development is a unique aspect of being a member of the Berkeley Seismological Laboratory who operate geophysical networks across northern California.