Seismic monitoring observations at Syowa Station (SYO; 69.0°S, 39.6°E), East Antarctica started using a short-period seismometer with a 1.0 s natural period in 1959 (Eto, 1962). A three-component long-period seismograph was installed and phase readings of the teleseismic events, detected on the three-component short- and long-period seismograms, have been reported currently to US Coastal Geodetic Survey (USCGS), and to the International Seismological Center (ISC) since 1967 (Kaminuma et al., 1968).
A three-component broadband seismometer (STreckeisen Seismometer; STS-1, Streckeisen and Messegeraete, 1987) was installed in April 1989, based on the recommendation from the Working Group of Solid Earth Geophysics of Scientific Committee on Antarctic Research (SCAR). Syowa Station has also an important role in the framework of the Federation of Digital Seismolofical Network (FDSN), together with the Japanese Pacific Orient Seismic Digital Observation Network (POSEIDON; now the name was changed to PACIFIC21).
In this page, present status on seismic observations and procedure for data exchanges of the archived waveforms, hypocenters, and arrival-times at Syowa Station are presented.
Waveforms & Spectrums Data
Contact; Masaki Kanao / kanao (at) nipr.ac.jp