Metodo di calcolo della magnitudo di terremoti registrati da sismografi in uso agli inizi del nostro secolo

Abstract

SUMMARY. - A method of calculation to determine the magnitude by means<br />of the records of seismographs used at beginning of the century is exposed.<br />One can obtain an expression generalized of magnitude good for seismographs,<br />which have the damping coefficient li of range 0.01 about, with periods from<br />1.2 to 6.7 seconds inclusive, and for the epicentral distance as far as 600 km. The<br />results have shown the validity of the method.