1. a Institute of Solar-Terrestrial Physics SB RAS , P.O. Box 291, Irkutsk, 664033, Russia
2. b Institute of Geology and Geophysics, Chinese Academy of Sciences , Beijing, 100029, China
3. c Department of Natural History Sciences , Hokkaido University , Sapporo, Japan , 060-0810, Kita-ku, N10 W8
4. d Shanghai Astronomical Observatory, Chinese Academy of Sciences , Shanghai, 200030, China
5. e Institute of the Earth's Crust of SB RAS , Lermontov Street, 128, 664033, Irkutsk, Russia