01009nam a2200253Ia 450000100060000000300050000600500170001100800410002801000170006903500250008604000180011104300120012907400100014108600170015124501660016826001430033430000300047749000430050765000440055065000560059465100230065070000370067371000450071041071BIBL20160527200435.0800722s1980    vaua     b   f00000 eng d  agp 81002587   a(OCoLC)6539671 81020  aGIScGISdGPO  anwpr---  a620-A0 aI 19.4/2:82100aPuerto Rico seismic network data report of earthquakes located by the programs HYPO71 and HYPOELLIPSE, July 1, 1975-December 31, 1977cby R.L. Dart ... [et al.].0 aArlington, Va. (1200 South Eads Street, Arlington, Va. 22202bFree on Application to Branch of Distribution, U.S. Geological Surveyc1980.  aiii, 43 p.b8 ill., maps. 0aGeological Survey circularv8212Local 0aSeismologyzPuerto RicoxTables.2Local 0aSeismological stationszPuerto RicoxTables.2Local 0aPuerto Rico2Local10aDart, R. L.q(Richard L.)2Local10aUnited StatesbGeological survey.2Local