KPDS 2004-1 Soru=91

The passage emphasizes the fact that the Marmara earthquake

Throughout history, eyewitnesses have reported orange glows,
fireballs or flashes in the days before and during an earthquake. it
was in 1968, however, that the first photographs of "earthquake
lights" were taken during a series of earthquakes in Japan. Some
showed red streaks across the sky. Others looked like a low blue
dawn from a distance. in 1999, floating bails of light in the sky were
broadcast on Turkish television, reportedly filmed the night before
the devastating earthquake of 7.4 on the Richter scale that killed
many thousand people in the Marmara region of Turkey. Mysterious
or not, repeated sightings of earthquake lights confirm their
existence. it has to be said that earthquake lights are a fairly wellknown
phenomenon, but we don't know what they mean, or what
causes them. Seismologists have struggled far years to find a
reliable earthquake predictor. Could the lights hold the key?