The Tunguska Event: Eyewitness Account

Captain Charles J. P. Cave, Petersfield, Hampshire, England

As befitted an English country gentleman, a retired soldier and a diligent member of the Royal Meteorological Society, [Cave] possessed his own microbarograph, an instrument which detects and records disturbances of air pressure, the model invented by Drs Shaw and W. H. Dines in 1902. Coming downstairs for breakfast on the morning of 30 June 1908., Cave tapped his barometer and inspected his microbarograph. Between the hours of 5 and 6 a.m. it had registered a series of severe jolts. Four similar waves had been registered within a period of two minutes, followed by a large number of rapid oscillations of the pen. Cave placed the time of the disturbances at 5:23 a.m. [1]

[Notes and Further Reading]

[1] from Rupert Furneaux, The Tungus Event: the unsolved mystery of the world’s greatest explosion, Panther Books, 1977, p. 11.
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