Seismological station Kalwaria Pacławska (KWP): first year of activity

The Institute of Geophysics, Polish Academy of Sciences, in cooperation with the GeoForschungsZentrum Potsdam, has set up in 1999 a new seismological broadband station at Kalwaria Pacławska (KWP), southeast Poland. The site was chosen as there are few seismological broadband stations in the area. Those that exist are either situated to the west or have outdated equipment and report data irregularly, as it is the case with the stations to the east. Therefore, Kalwaria Pacławska is very valuable to monitor local and regional seismicity in the area. The site is located on the edge of the Carpathians and has proven to be very interesting. During the first year of activity many seismic events from different parts of the world have been registered, the most noteful being perhaps the disastrous M = 7.4 earthquake that hit Izmit, Turkey. Surprisingly, some mining events from Upper Silesia and Lubin get registered fairly well on KWP. Attempt to describe the anisotropy beneath the station using SKS waves of events from 90-130 degree distance has yielded an interesting though ambiguous result. Hence, the anisotropy beneath KWP should be an issue of further study.