I study earthquakes especially their source characteristics and their effects on the built environment. Quantifying earthquake hazard and understanding the occurrence of earthquakes particularly in the Central US is an important research focus.
I am invovled in a number of community outreach activities. I hold Earthquake Town Meetings in at risk communities in the central US. I am working to formalize plans with emergency management agenciesin the Central US to open information clearinghouses following significant earthquakes.
Current and Recent Research
Observations of the Horizontal to Vertical
power spectral ratio of ambient ground motion from 3 Basins. The H/V
peaks are correlated with sediment thickness in each basin. All 3 show
similar trends suggesting that the process that produces the peak in
the ratio is similar in each basin. And that the seismic proerties of
the sediments in each basin are also similar. We hope to include more
observations from basins worldwide. See Ambient link for details.