Recent Earthquakes

Abstract

WITH reference to the statement in NATURE, vol. xxxi. p. 262, that the earthquake of December 25, 1884, was registered by the magnetic variation instruments in London, permit me to inform you that an effect was also noticed on a curve of the magnetograph at the Imperial Marine Observatory, Wilhelmshaven. But while at London declination and bifilar were specially affected, here only the Lloyd's magnetic balance, the instrument for vertical intensity, was set in oscillation, first at 9h. 52m. p.m. local time. Full details will be published in the Zeitschrift of German Meteorology.