MANY SHOCKS

Auckland Star, Volume LXV, Issue 56, 7 March 1934, Page 9

MANY SHOCKS

WHAT RECORDS SHOW. INSTRUMENTS UPSET. (By Telegraph.—Press Association.) WELLINGTON, this day. Records at the Dominion Observatory show that the first series of three shocks occurred between 11.46 p.m. on Monday night and 0.6 a.m. on Tuesday morning. After that there were eight fairly large shocks which might have been felt by people and left very clearly defined records on the seismographs. Altogether, including these, there were 22 after-shocks, some of which might be described as microscopic., Judging from shocks as recorded, the epicentre of the shake must have been some 90 miles from Wellington, and, though this is not yet definite, it seems as though the Pahiatua district is indicated. The intensity of the shock in Wellington on Rossi Forel scale was roughly six. Two of the pendulum clocks at the observatory stopped, and practically every other clock except the chronometers suffered slight derangements. The effect of the shake on the more delicate seistnological instruments was even more marked. The two Milne-Shaw seismographs, which will record a shock at a great distance, will not withstand sturdy local shocks, and these were put completely out of adjustment.