Letter | Published:

The Recent Earthquake


SINCE the earthquake of Lisbon in 1755 troubled the waters of the fish-pond, called Peerless Pool, in the London City Road, it has been a well-known fact that earth-waves had a direct influence in producing an alteration in the level of waters inland, as well as in producing tidal waves sweeping the coasts. The earthquake of Tuesday, April 22, has produced a marked, and, so far, permanent, change in the level of underground waters in the district most affected by the shock, but how far this influence extended there is not yet evidence to show, for, judging by past experience, it may probably prove that springs have increased in volume and the underground water-levels have been raised over the whole area affected by the recent shock, which includes the district lying between Broadstairs and Bristol, 165 miles from east to west, and from Spilsby to Ryde, 170 miles from north to south, and possibly beyond it. It will be of especial interest to know whether the Wealden area, which, as Mr. Topley has pointed out, was free from the more direct influence of the shock, experienced any rise in its underground waters.

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