China earthquake and a word about seiches
May 16, 2008The tally of death and devastation in China in the aftermath of the earthquake continues to grow; now the official death toll is 22,000, with 14,000 still buried under rubble. In addition, repeated aftershocks are hitting the region.
Numerous eyewitness videos have been posted online since the event. This one in particular caught my eye, which shows a group of students outdoors experiencing the quake firsthand. It is a bit chilling to see their enthusiasm, knowing the devastation that was being wrought far away, but the students clearly felt that they were experiencing a small local quake, and had no idea that they were in fact 500 miles from the epicenter.
The part of the video that caught my eye was the sloshing of the water in the small pond. I believe this could be considered a small-scale version of a relatively little-known water wave phenomenon known as a seiche.
