EARTHQUAKES OF MAY 1960 EST CHILE — SATNT-AMAND 341 



Figure 3. — Sketch map of southern region of the earthquake zone. 



Owing to the sparse settlement of the southern part of the affected 

 zone and the difficulty of access, little is known of the effects of shak- 

 ing there. A number of severe landslides occurred in several places, 

 notably near the settlement of Puerto Cisnes on Isla Magdalena. It 

 has not been established whether this was produced during the main 

 shock or during one of the larger aftershocks. 



The seismograph at Concepcion was completely destroyed by the 

 first shock and thus was useless. However, the station at Santiago 



