Relation between Swarm Activities and Strong Earthquakes in Izu Peninsula
نویسندگان
چکیده
منابع مشابه
Fractal analysis of the ULF geomagnetic data obtained at Izu Peninsula, Japan in relation to the nearby earthquake swarm of June?August 2000
In our recent papers we applied fractal methods to extract the earthquake precursory signatures from scaling characteristics of the ULF geomagnetic data, obtained in a seismic active region of Guam Island during the large earthquake of 8 August 1993. We found specific dynamics of their fractal characteristics (spectral exponents and fractal dimensions) before the earthquake: appearance of the f...
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Results of study of anomaly behavior of amplitudes, phase velocities and gradients of ULF electromagnetic disturbances (F = 0.002 – 0.5 Hz) before and during a seismic active period are presented. Investigations were carried out in Japan (Izu and Chiba peninsulas) by two groups of magnetic stations spaced apart at a distance ∼140 km. Every group (magnetic gradientometer) consists of three 3comp...
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The subduction of the Philippine Sea (PHS) Plate toward the north of Izu peninsula, Japan, is of great interest because intraslab seismicity is absent where the buoyant Izu volcanic arc has been subducting over the past 15 Myr. This study analyzes 42 earthquakes in an isolated seismic cluster that occurred ~ 100 km north of Izu peninsula at depths of 40–90 km and discusses seismogenesis in the ...
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Izu peninsula is in Shizuoka prefecture, which is approximately 130 km from Tokyo. According to a report from the National Research Institute for Earth Science and Disaster Prevention, Izu peninsula is located just on the border between the Philippine Sea and the Eurasian plate. In this area, huge earthquakes, called Tokai earthquakes, have occurred repeatedly every 100 to 150 years. The next e...
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ژورنال
عنوان ژورنال: Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
سال: 1984
ISSN: 0037-1114,1883-9029,2186-599X
DOI: 10.4294/zisin1948.37.1_1