Breathing of the seafloor: Tidal correlations of seismicity at Axial volcano

Research Article| June 01, 2002 Breathing of the seafloor: Tidal correlations of seismicity at Axial volcano Maya Tolstoy; Maya Tolstoy 1Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, New York 10964-8000, USA Search for other works by this author on: GSW Google Scholar Frank L. Vernon; Frank L. Vernon 2Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, California 92093-0225, USA Search for other works by this author on: GSW Google Scholar John A. Orcutt; John A. Orcutt 2Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, California 92093-0225, USA Search for other works by this author on: GSW Google Scholar Frank K. Wyatt Frank K. Wyatt 2Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, California 92093-0225, USA Search for other works by this author on: GSW Google Scholar Geology (2002) 30 (6): 503–506. https://doi.org/10.1130/0091-7613(2002)0302.0.CO;2 Article history received: 03 Aug 2001 rev-recd: 06 Feb 2002 accepted: 13 Feb 2002 first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Maya Tolstoy, Frank L. Vernon, John A. Orcutt, Frank K. Wyatt; Breathing of the seafloor: Tidal correlations of seismicity at Axial volcano. Geology 2002;; 30 (6): 503–506. doi: https://doi.org/10.1130/0091-7613(2002)0302.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Tidal effects on seafloor microearthquakes have been postulated, but the search has been hindered by a lack of continuous long-term data sets. Making this observation is further complicated by the need to distinguish between Earth and ocean tidal influences on the seafloor. In the summer of 1994, a small ocean-bottom seismograph array located 402 microseismic events, over a period of two months, on the summit caldera of Axial volcano on the Juan de Fuca Ridge. Harmonic tremor was also observed on all instruments, and Earth and ocean tides were recorded on tiltmeters installed within the seismometer packages. Microearthquakes show a strong correlation with tidal lows, suggesting that faulting is occurring preferentially when ocean loading is at a minimum. The harmonic tremor, interpreted as the movement of superheated fluid in cracks, also has a tidal periodicity. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.