[SSS16-P16] Characteristics of the PL waves observed by the borehole strain and stress meters of Tono Research Institute of Earthquake Science
Keywords:long-period ground motion between P and S arrivals, PL waves, strainmeters, stressmeters, borehole
We also found these long-period ground motions between P and S waves arrivals in the F-net seismograms. While we clearly found these waves in the radial components, it was difficult to find these waves in the transverse components. Because of this observation, we consider that the long-period ground motions between P and S wave arrivals are PL waves.
In order to clarify the causes of the differences of these PL waves, we estimated the dominant periods of the PL waves observed by the strain and stress meters in our network for many large earthquakes in Japan. We will present the results obtained from this analysis.