Seismic excitation by the space shuttle Columbia

摘要: Seismic stations in southern California recorded the atmospheric shock waves generated by space shuttle Columbia on its return to Edwards Air Force base 13 August 1989 (Fig. 1). In addition wave, broad-band IRIS–TERRAscope station at Pasadena a distinct pulse with period of ~2–3 seconds, which arrived 12.5 seconds before wave 2). This was also University Southern California, near downtown Los Angeles, where it 3 after wave. The origin this could not be readily identified. We show here that seismic P excited motion high-rise buildings were hit proximity natural Angeles basin enabled efficient energy transfer from