Add to ORKGChanges in the geomagnetic total intensity at a station in the Matsushiro earthquake area are examined. The observation by a proton precession magnetometer makes it clear that the total intensity there decreased by a few gammas during a period from Nov., 1965 to Feb., 1966. A number of short-term fluctuations in the total intensity that might be related to seismic activity are also observed.松代地震群に関連して,松代町豊栄平林区におけるプロトン磁力計による観測が継続されている.第1報にも述べてあるように,観測は平林区の小川久雄氏によつて手動で行われ,通常1日数回の観測結果が得られている. Table 1は1965年12月20日から1966年2月2日にわたる期間の観測結果を示す
Yatsugatake Geomagnetic Observatory was established in 1970, as a standard geomagnetic station for t...
Geomagnetic surveys have repeatedly been carried out in the Tokai District since 1971. Survey site s...
This is a report of unsuccessful detecting of the seismomagnetic effect associated with the East off...
A number of proton precession magnetometers have been set up over the Matsushiro earthquake area. On...
Observations of changes in the geomagnetic field by a proton precession magnetometer and a second-or...
Geomagnetic observation by a proton precession magnetometer has been resumed at a station in the cen...
A number of proton precession magnetometers have been set up over the Matsushiro earthquake area. On...
Geomagnetic observations have been continued over the Matsushiro area since the middle of October, 1...
Results of proton precession magnetometer observations over Nagano Prefecture are reported for a per...
Geomagnetic observations have been continued over the Matsushiro area since the middle of October, 1...
Geomagnetic total intensities (F) observed simultaneously with, the same type of proton precession m...
Geomagnetic total intensities (F) observed simultaneously with, the same type of proton precession m...
A rubidium vapour magnetometer was operated at the top of Mt. Minakamiyama during the period from No...
A 5-year plan for earthquake prediction research has been under way in Japan since 1965. Among a num...
A rubidium vapour magnetometer was operated at the top of Mt. Minakamiyama during the period from No...
Yatsugatake Geomagnetic Observatory was established in 1970, as a standard geomagnetic station for t...
Geomagnetic surveys have repeatedly been carried out in the Tokai District since 1971. Survey site s...
This is a report of unsuccessful detecting of the seismomagnetic effect associated with the East off...
A number of proton precession magnetometers have been set up over the Matsushiro earthquake area. On...
Observations of changes in the geomagnetic field by a proton precession magnetometer and a second-or...
Geomagnetic observation by a proton precession magnetometer has been resumed at a station in the cen...
A number of proton precession magnetometers have been set up over the Matsushiro earthquake area. On...
Geomagnetic observations have been continued over the Matsushiro area since the middle of October, 1...
Results of proton precession magnetometer observations over Nagano Prefecture are reported for a per...
Geomagnetic observations have been continued over the Matsushiro area since the middle of October, 1...
Geomagnetic total intensities (F) observed simultaneously with, the same type of proton precession m...
Geomagnetic total intensities (F) observed simultaneously with, the same type of proton precession m...
A rubidium vapour magnetometer was operated at the top of Mt. Minakamiyama during the period from No...
A 5-year plan for earthquake prediction research has been under way in Japan since 1965. Among a num...
A rubidium vapour magnetometer was operated at the top of Mt. Minakamiyama during the period from No...
Yatsugatake Geomagnetic Observatory was established in 1970, as a standard geomagnetic station for t...
Geomagnetic surveys have repeatedly been carried out in the Tokai District since 1971. Survey site s...
This is a report of unsuccessful detecting of the seismomagnetic effect associated with the East off...