JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Afghanistan earthquake seismograms. Recordings by the British Geological Survey site near Edinburgh, Scotland, of the large earthquake on 3 March 2002, in the Hindu Kush mountains of Afghanistan. Ground movement speed was recorded in three directions: vertical (top), north-south (middle) and east-west (bottom). The earthquake struck at 12:08 UTC (GMT, 16:38 local time). About 15 minutes later, seismic waves travelling through the Earth hit Edinburgh. These instruments also detected the large surface waves, delayed by 25-30 minutes as they travelled over the Earth's surface. The earthquake had a 7.4 Mw (moment magnitude), originated 195 kilometres below the surface, and killed at least 150 people.
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