One hundred years of earthquake recording at the University of California

Abstract

Seismology is a relatively new science, so there is special reason to celebrate the first permanent earthquake observatories in America, set up by the University of California 100 years ago. The best seismographs then available arrived from England in 1887 and were installed at Lick Observatory on Mt.Hamilton and at the Students Astronomical Observatory on the Berkeley campus. The first California earthquake recorded by the Lick instrument was on April 24, 1887. These seismographic stations have functioned continuously from their founding to the present day, with improvements in instruments from time to time as technology advanced. Now they are part of a sesimogrpahic network of 16 stations recording with great completeness both local and distant earthquakes.