Two 1993 Kamchatka earthquakes

Kliuchevskoi Volcano, Kamchatka Peninsula

Response of a 14-Story Anchorage, Alaska, Building in 2002 to Two Close Earthquakes and Two Distant Denali Fault Earthquakes

The recorded responses of an Anchorage, Alaska, building during four significant earthquakes that occurred in 2002 are studied. Two earthquakes, including the 3 November 2002 M7.9 Denali fault earthquake, with epicenters approximately 275 km from the building, generated long trains of longperiod (.1 s) surface waves. The other two smaller earthquakes occurred at subcrustal depths practically be...

Why earthquakes threaten two major European cities: Istanbul and Bucharest

Istanbul and Bucharest are major European cities that face a continuing threat of large earthquakes. The geological contexts for these two case studies enable us to understand the nature of the threat and to predict more precisely the consequences of future earthquakes, though we remain unable to predict the time of those events with any precision better than multi-decadal. These two cities fac...

The Two-dimensional Nonlinear Burridge-Knopoff Model of Earthquakes

We present a two-dimensional spring-block model of earthquakes with the full nonlinear equations for the forces in terms of displacements. Correspondence of our linearized version to earlier models reveals in them inherently asymmetric elastic properties. Our model generalizes those models and allows an investigation of the effects of internal strains and vectorial forces. The former is found t...

Trajectories of posttraumatic growth and depreciation after two major earthquakes.

This study examined trajectories of posttraumatic growth or depreciation (i.e., positive or negative life change) in personal strength and relationships after 2 major earthquakes in Canterbury, New Zealand using group-based trajectory modeling. Participants completed questionnaires regarding posttraumatic growth or depreciation in personal strength and relationship domains 1 month after the fir...