In the same collection of clippings from Japan that yielded the biological precursors were several accounts of earthquake lights (EQLs).
Some residents of Kobe and nearby cities saw aurora-like phenomena in the sky just before and after the quake.
A Kobe firefighter observed a bluish-orange light above a shaking road that lasted about 4 seconds.
A hotel employee on his way to work on Rokko mountain: "saw a flash running from east to west about two to three meters above the ground shortly after the quake. The orange flash was framed in white."
Flashes of light were widely observed.
(Shimbun, Yomiuri; "'Aurora' Flashes Observed before, after, Quake," The Daily Yomiuri, February 9, 1995. Cr. N. Masuya)