A SEVERE earthquake shook the towns of Santiago and Valparaiso and the region between the towns at about 1.30 a. m. (local time) on June 29. The Intendencia, headquarters of the Provincial Government, and other buildings were damaged in Valparaiso. Property was also damaged in Santiago, and for a while the electricity supply was interrupted. Thirty-seven people were reported injured. The earthquake was probably the most severe in Chile since 1927, when Talca and Concepcion were destroyed.