Preliminary Report On and Proposal for Future Focal Mechanism Study of North Atlantic Earthquakes by the Surface Wave Method

• Main Authors: Aki, K, Husebye, E S
• Other Authors: ROYAL NORWEGIAN COUNCIL FOR SCIENTIFIC AND INDUSTRIAL RESEARCH KJELLER
• Format: Text
• Language: English
• Published: 1974
• Subjects: Geology; Geochemistry and Mineralogy; Seismology; *EARTHQUAKES; *NORTH ATLANTIC OCEAN; EARTH MANTLE; EPICENTERS; NORWAY; NORWEGIAN SEA; OCEANIC CRUST; PHASE STUDIES; RAYLEIGH WAVES; SEISMIC DETECTION; SEISMIC WAVES; SURFACE WAVES; TECTONICS; Love waves; Plate tectonics; Norwegian Seismic Array; Norway; Norwegian Sea; Iceland; North Atlantic
• Online Access: http://www.dtic.mil/docs/citations/ADA000064; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA000064

The seismicity and earthquake mechanism of the Atlantic Ocean north of Iceland is discussed. It is demonstrated that the surface wave method can be extended to small earthquakes using known fault plane solutions in the region as reference events. The outcome of these studies - Rayleigh and Love dispersion, attenuation, focal depth, seismic moment and focal mechanism - can be useful quantities for discussing the tectonics of the North Atlantic. Prepared in cooperation with Massachusetts Inst. of Tech., Cambridge.