Open AccessSome ocean‐bottom seismograph observations on the Reykjanes Ridge at 59° N
Author(s) -
Lilwall R. C.,
Francis T. J. G.,
Porter I. T.
Publication year - 1980
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1980.tb04858.x
Subject(s) - seismometer , geology , ridge , seismology , crest , latitude , ocean bottom , mid ocean ridge , mid atlantic ridge , geodesy , paleontology , optics , physics
Summary. Epicentres of microearthquakes detected by two ocean‐bottom seismographs deployed on the Reykjanes Ridge at latitude 59° N can be interpreted as trending between 010° and 020° E of N, parallel to detailed morphological features seen in the area, rather than the overall trend of the ridge (036° E of N). Travel times from an airgun source to the seismographs indicate much slower P wave velocities for the top 4 km at the ridge crest compared with that 5–10 km off axis.