搜索结果: 1-15 共查到“地球物理学 Japan”相关记录36条 . 查询时间(0.289 秒)
Size fractionation of nanoparticulate metal sulfides in oxic water of Lake Teganuma, Japan
metal sulfides nanoparticle size fractionation acid volatile sulfides Lake Teganuma
2017/4/10
Concentrations of acid volatile sulfides (AVS) as metal sulfides in three different size fractions (<30 nm, 30–200 nm,
>200 nm) at Lake Teganuma were measured using a nano-filtration followed by a pu...
Quantitative mapping of precursory seismic quiescence before the 1989, M 7.1off-Sanriku earthquake, Japan
Seismic quiescence earthquake prediction Sanriku Japan
2015/9/30
The first main shock of the off-Sanriku earthquake sequence (02/11/89, M 7.1; 18/07/92, M 6.9; 28/12/94, M 7.5) was preceded by a precursory seismic quiescence lasting 2.5 ± 1 year and up to this main...
Seismic quiescence precursor to the 1983 Nihonkai-Chubu (M 7.7) earthquake, Japan
precursory seismic quiescence ZMAP software tool Z-test false alarm
2015/9/30
We analyzed the seismicity of Northern Honshu-Hokkaido region using the declustered earthquake catalog compiled by the Japan Meteorological Agency (JMA), for the period between January 1970 and Decemb...
Significance test for seismicity rate changes before the 1987 Chiba-toho-oki earthquake (M 6.7) Japan
quiescence seismicity rate increasa quantitative analysis significance test the 1987 Chiba-toho-oki earthquake
2015/9/30
A precursory seismic quiescence lasting 1.5 ± 0.5 years was observed prior to the 1987 M 6.7 Chiba-toho-oki earthquake, Central Japan. This event was the largest mainshock to occur in the region in 60...
Evaluation of electric and magnetic field monitoring of Miyake-jima volcano monitoring of Miyake-jima volcanomonitoring of Miyake-jima volcano (Central Japan):1995-1999
Miyake-jima volcano lectromagnetic monitorin of volcano volcanomagnetic effect resistivity self potential thermal magnetic effect
2015/9/28
Evaluation of electric and magnetic field monitoring of Miyake-jima volcano monitoring of Miyake-jima volcanomonitoring of Miyake-jima volcano (Central Japan):1995-1999.
Long-term geomagnetic changes observed n association with earthquake swarm activities in the Izu Peninsula,Japan
Geomagnetic field tectonomagneticsm earthquake swarm total force
2015/9/28
Anomalous crustal uplift has continued since 1976 in the Izu Peninsula, Japan. Earthquake swarms have also occurred intermittently off the coast of Ito since 1978. Observations of the total intensity ...
Importance of damage data from destructive earthquakes forseismic microzoning Damage distribution during the 1923 Kanto,Japan,earthquake
seismic microzoning damage data
2015/9/25
To verify the results of seismic microzoning and to improve techniques, the damage data of past destructive earthquakes is an important key reference. The damage data of the 1923 Kanto, Japan, earthqu...
Anomalous crustal movements with low seismic efficiency-Campi Flegrei,Italy and some examples in Japan
crustal movements low seismic efficiency
2015/9/25
Campi Flegrei is a unique volcanic region located near Naples, Italy. Anomalous crustal movements at Pozzuoli in Campi Flegrei have been documented since the Roman period. The movements were gradual a...
Detection of Kuril subduction-zoneearthquakes from remote historic recordsin Honshu, Japan, between 1656 and 1867
historical earthquakes seismic intensity seismicity Kuril subduction zone
2015/9/14
Earthquakes before A.D. 1800 along the Southern Kuril trench, although before the start of written history on nearby islands, probably account for some of the earthquakes noted by local records in Hon...
Status of historical seismology in Japan
historical seismology historicaldocuments earthquake catalogue database
2015/9/14
Japan's combination of high seismicity and a long history has produced copious written records of historical earthquakes. Systematic collection and investigation of such historical documents began lat...
Formation processes of the 1909 Tarumai and the 1944 Usu lava domesin Hokkaido,Japan
lava domes Tarumai volcano Usu volcano squeeze of magma growth rate of domes Hagen-Poiseuille's Law
2015/9/11
The formation of the two particular lava domes in Hokkaido, Japan is described and interpreted mainly from geophysical viewpoints. The 1909 eruption of Tarumai volcano was not violent but produced a l...
Anomalous geoelectrical and geomagnetic signals observed at Southern Boso Peninsula,Japan
ULF electromagnetic environment geoelectrical potential differences direction of signal arrival understanding the preparation process of crustal activity
2015/9/2
Geoelectrical and geomagnetic fluctuations are considered the end product of several geophysical phenomena. In particular these signals measured in seismically active areas can be attributed to stress...
Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
Casualties Earthquake-generated tsunami 2011 Tohoku earthquake
2015/8/27
A retrospective case study was conducted for the March 11, 2011, earthquake that occurred off the east Pacific coast of Tohoku, Japan, with reference to the Sumatra-Andaman earthquake and Indian Ocean...
Possible precursor to the March 11, 2011, Japan earthquake: ionospheric perturbations as seen by subionospheric very low frequency/low frequency propagation
Earthquake predictio Ionospheric perturbatio VLF/LF propagation
2015/8/24
This study reports on a possible very low frequency/low frequency (VLF/LF) subionospheric precursor to a recent earthquake in Japan. As the epicenter of this large Japanese earthquake on March 11, 201...
Anomaly disturbances of the magnetic fields before the strong earthquake in Japan on March 11, 2011
Magnetic field ULF magnetic field 2011 Japan earthquake
2015/8/24
One of the strongest earthquakes, with magnitude M 8.9, occurred at the sea bottom near to the east coast of Japan on March 11, 2011. This study is devoted to the investigation of anomaly disturbances...