Abstract:To carry out wave vector and Poynting vector analyses, we utilize ELF three-component waveform data of magnetic field and electric field in burst mode of over 6 000 number 1130 and 1135 orbital data recorded by the microsatellite DEMETER. These dataoccurred within 30 days before the earthquakes, ±10° above the epicenter for six earthquakes with MS≥6 from January 2005 to December 2009 in northeast Asia (105°-145°E;38°-58°N).The study shows that the satellite recorded the arrival of the abnormal electromagnetic wave below the proton Lamor frequency originating before the MS7.2 earthquake that occurred on August 16, 2005 near east coast of Honshu and the June 5, 2009 MS6.6 earthquake that occurred in Hokkaido. The satellite did not record the arrival of the abnormal electromagnetic wave below the proton Lamor frequency originating from the earth before the November 10, 2005 MS6.4 earthquake that occurred in eastern Russia and the August 2, 2007 MS6.8 earthquake in Sakhalin.Though the satellite recorded the arrival of the abnormal electromagnetic wave below the proton Lamor frequency,the waves before the February 17, 2007 MS6.2 earthquake in Hokkaido and the June 13, 2008 MS7.3 earthquake near the east coast of Honshu, Japan were not from the earth.
YANG Muping,QIAN Geng,ZHANG Xuemin et al. Study on Abnormal Electromagnetic Wave Associated with Magnitude MS≥6.0 in Northeast Asia[J]. jgg, 2022, 42(7): 669-674.