Journal of Geophysics https://journal.geophysicsjournal.com/JofG <p><strong>Journal of Geophysics</strong> (<em>J. Geophys.</em>) is the world's oldest and premier geophysical journal. The journal publishes research of great importance to geosciences, primarily in the areas of theoretical and applied geophysics, tectonophysics, seismology, physical and space geodesy, mathematical geodesy and geophysics, geodynamics, planetary physics, and atmospheric physics. (<a href="/JofG/about#nav-menu">more...</a>)</p> en-US <p style="text-align: center;"><img class="responsiveimg" style="width: 100%; height: auto;" src="/public/site/images/JoGeoph/Copyright.png" alt="Journal of Geophysics"></p> <p style="text-align: center;">&nbsp;</p> <p>Authors who publish with this journal as of Vol. 63 agree to the following terms:</p> <p>a. Authors share the copyright with this journal in equal parts (50% to the journal, 50% to the lead author), and grant the journal right of first publication, with the work after publication simultaneously licensed under <a style="color: #00bfff;" href="https://creativecommons.org/licenses/by-nc-nd/4.0/" target="_blank" rel="noopener">Creative Commons Attribution License CC BY-NC-ND 4.0</a> that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.</p> <p>b. Authors may enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal, and a reference to this copyright notice.</p> <p>c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) during the submission process, as this can lead to productive exchanges as well as earlier and greater citation of published work and better sales of the copyright.</p> <p>&nbsp;</p> <p style="text-align: center;">NOTES</p> <p>This journal is one of a handful of scholarly journals that publish original scientific works under CC BY-NC-ND 4.0 - the only Creative Commons license affording absolute worldwide protection of authors' intellectual property.</p> <p><strong>Journal of Geophysics</strong> is published under the scholar-publishers model, meaning authors do not surrender their copyright to us. Instead, and unlike corporate publishers like <em>Elsevier</em> or <em>Springer Nature</em> which resell the copyright to third-parties for up to <strong>$80,000</strong> (per paper, per transaction!), the Journal of Geophysics authors share the copyright equally with this journal.</p> <p>Therefore all the proceeds from reselling the copyright to third parties are shared to equal parts as well (50% to the journal, 50% to the lead author). Under the Berne Convention, this protection is an inheritable right which lasts for as long as the rightsholder lives + 50 years.</p> <p>By submitting to this journal, the lead author on behalf of all co-authors grants permission to this journal to represent all co-authors in negotiating copyright sales and collecting of proceeds. The lead author should negotiate with his/her co-authors the modalities of distributing the lead author's portion of the proceeds.&nbsp;Usually, this is per pre-agreed percentage of each co-author's contribution to creating the copyrighted work. (<a href="https://journal.geophysicsjournal.com/JofG/about#nav-menu">more</a>...)</p> editor@geophysicsjournal.com (Editor-in-Chief, J. Geophys.) office@geophysicsjournal.com (Editorial Office Direct:) Fri, 12 Jul 2019 00:00:00 +0000 OJS 3.1.2.0 http://blogs.law.harvard.edu/tech/rss 60 Tomographic imaging of the Andravida blind strike-slip fault (Western Greece) https://journal.geophysicsjournal.com/JofG/article/view/29 <p>On 8 June 2008 at 12:25 GMT, a large (M<sub>w</sub>6.4) earthquake occurred NE of the town of Andravida in Western Peloponnese, Greece – an area characterized by high seismicity during the last decade. In this study, the local velocity structure of the Andravida Fault Zone (AFZ) is investigated primarily using data recorded during the period 2012-2017 by the Hellenic Unified Seismological Network (HUSN). We selected about 1,500 seismic events recorded by the local HUSN stations as well as the Hellenic Strong-Motion Network (HSMN). By applying tomographic inversion, we produced and interpreted 3D models of V<sub>P</sub>, V<sub>S</sub>, and V<sub>P</sub>/V<sub>S</sub> ratio in the study area. The spatial distribution of the aftershocks, as well as the 3D model derived by Local Earthquake Tomography (LET), provided evidence for the rupture plane. Surface breaks and minor faults are found to be oblique to the main direction of the AFZ, as a result of a restraining bend in Mtn. Movri and the formation of a positive flower-structure in the shallow layers of the upper crust.</p> <p><a href="https://scholar.google.com/scholar?cluster=5001220698575054765" target="_blank" rel="noopener"><img class="scholar" title="Google Scholar" src="/public/site/images/JoGeoph/gs.png" alt="Google Scholar"></a> &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; <strong>ARK</strong>:<a title="ARK Identifier" href="https://n2t.net/ark:/88439/x014750" target="_blank" rel="noopener">/88439/x014750</a> &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; <a target="_blank" rel="noopener"><img class="scholar" title="Copyright Clearance Center" src="/public/site/images/JoGeoph/ccc.png" alt="Copyright Clearance Center"></a> <a title="Copyright Clearance Center" href="https://www.copyright.com/openurl.action?issn=2643-2986&amp;WT.mc.id=Journal%20of%20Geophysics" target="_blank" rel="noopener">Reprints &amp; Permissions</a></p> <p>&nbsp;</p> A. Karakonstantis, K. Pavlou, V. Kapetanidis Copyright (c) https://journal.geophysicsjournal.com/JofG/article/view/29 Fri, 12 Jul 2019 00:00:00 +0000 Earth body resonance https://journal.geophysicsjournal.com/JofG/article/view/31 <p>The full range of 72h-forced, 72 superharmonic resonance periods, is detected in time-series of all 866 earthquakes of (robust averages of) M<sub>w</sub>5.6+ from USGS, EMSC, and GFZ, 2015-2019 catalogs. The resonance is in the 55’–15 days long-periodic band (0.303 mHz–0.771605 μHz) at 99–67% confidence. Moreover, omitting of the 21 overrepresenting events has improved the result. The signal is clear, strong, and stable – demonstrating beyond doubt that M<sub>w</sub>6.2+ seismicity arises due to long-periodic resonance. Remarkably, the natural mode’s cluster was detected too; it averaged 60.1’, while the overall strongest resonance period was also 59.9’, at 2.3 var%, or to within the 1Hz sampling rate – revealing that the 72 h forcer is the modulator of the Earth’s natural period via synchronization. The dominance property of the forcer also follows from detection of its many other fractional multiples: 14/5, 3/2, 5/12, 5/36, etc. After Schumann resonance discovery in the short band (extremely long band of the EM Spectrum), this is the second report ever of a full resonance bundle in any global data, and the first ever in tectonic earthquakes occurrences. The M<sub>w</sub>6.2+ seismotectonics arises via resonance-rupture response of tectonic plates and regions to the resonant phase or its fractional multiples. Fundamental questions of geophysics including earthquake prediction can be solved if the Earth is taken to be a multi-oscillator nonlinear system. As an immediate benefit, the find enables a reliable partial seismic anti-forecasting (prediction of seismic quiescence), months ahead globally. This discovery of mechanically induced extreme-band energy on Earth invalidates the main (heat-transfer) geophysical hypothesis and thus should drastically diminish the role of chemistry in geosciences, specifically of geochemistry.</p> <p><a href="https://scholar.google.com/scholar?cluster=3884139320521185722" target="_blank" rel="noopener"><img class="scholar" title="Google Scholar" src="/public/site/images/JoGeoph/gs.png" alt="Google Scholar"></a> &nbsp;&nbsp;&nbsp; <strong>ARK</strong>:<a title="ARK Identifier" href="https://n2t.net/ark:/88439/x020219" target="_blank" rel="noopener">/88439/x020219</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a target="_blank" rel="noopener"><img class="scholar" title="Copyright Clearance Center" src="/public/site/images/JoGeoph/ccc.png" alt="Copyright Clearance Center"></a> <a title="Copyright Clearance Center" href="https://www.copyright.com/openurl.action?issn=2643-2986&amp;WT.mc.id=Journal%20of%20Geophysics" target="_blank" rel="noopener">Reprints &amp; Permissions</a></p> <p><a href="https://doi.org/10.5281/zenodo.2646487" target="_blank" rel="noopener"><span style="text-decoration: underline;"><img class="scholar" title="CERN Zenodo" src="/public/site/images/JoGeoph/cern-zenodo.png" alt="CERN Zenodo"></span></a> &nbsp;&nbsp;&nbsp; <strong>DOI</strong>:<a title="DOI Identifier" href="https://doi.org/10.5281/zenodo.2646487" target="_blank" rel="noopener">10.5281/zenodo.2646487</a> | <strong>Online first</strong>: 18 April 2019, CERN</p> <p>&nbsp;</p> M. Omerbashich Copyright (c) https://journal.geophysicsjournal.com/JofG/article/view/31 Mon, 05 Aug 2019 00:00:00 +0000 Moon body resonance https://journal.geophysicsjournal.com/JofG/article/view/73 <p>The full range of 50 initial, Moon-orbit-forced superharmonic resonance periods is detected in the 1969-1977 time-series of all 12474 consecutive 0.02 Hz moonquakes from the Apollo Program catalog. The resonance is found forcing the strongest-energy (highest-fidelity) part of the 10 hours–100 days (27.78–0.115741 μHz) long-periodic band at 99–67% confidence and below. Resonance signatures of the Moon’s other four long tidal periods – synodic, anomalistic, nodical, and tropical – were also identified but not as separate drivers of body resonance. The spectra were computed using a least-squares spectral analysis method that enabled separation of the signal driver and noise signatures of all lunar tides, as well as extraction of the exact sequence of resonance periods affecting the solid Moon. As the main disruptive phase, the Moon’s orbital period introduces nonlinearity into lunar vibration and thus forces lunar seismotectonics too, giving rise to superharmonic resonance and probably the so-called free librations as well. The spatiotemporally independent computations of Earth and Moon superharmonic resonances from seismicity time-series prove that (the magnification of) macroscopic mechanical resonance is from-quantum-to-macroscopic-scales universal, and therefore as important as gravitation and fundamental forces. I propose then that some of the craters and calderas in our Solar system are petrified evidence of polygonal Faraday latticing. Finally, since only planets with one moon are susceptible to resonance plate tectonics, to prevent Earth energy overload and disintegration, a global geoengineering scheme is proposed to reassign the smaller of Martian moons, Deimos, to Earth so to attenuate Earth plate tectonics while unlocking Mars plate tectonics for natural terraforming.</p> <p><a href="https://scholar.google.com/scholar?cluster=4751721462392538563" target="_blank" rel="noopener"><img class="scholar" title="Google Scholar" src="/public/site/images/JoGeoph/gs.png" alt="Google Scholar"></a> <strong>ARK</strong>:<a title="ARK Identifier" href="https://n2t.net/ark:/88439/x034508" target="_blank" rel="noopener">/88439/x034508</a> &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; <a target="_blank" rel="noopener"><img class="scholar" title="Copyright Clearance Center" src="/public/site/images/JoGeoph/ccc.png" alt="Copyright Clearance Center"></a> <a title="Copyright Clearance Center" href="https://www.copyright.com/openurl.action?issn=2643-2986&amp;WT.mc.id=Journal%20of%20Geophysics" target="_blank" rel="noopener">Reprints &amp; Permissions</a></p> <p><a href="https://doi.org/10.5281/zenodo.3376564" target="_blank" rel="noopener"><span style="text-decoration: underline;"><img class="scholar" title="CERN Zenodo" src="/public/site/images/JoGeoph/cern-zenodo.png" alt="CERN Zenodo"></span></a> <strong>DOI</strong>:<a title="DOI Identifier" href="https://doi.org/10.5281/zenodo.3376564" target="_blank" rel="noopener">10.5281/zenodo.3376564</a> | <strong>Online first</strong>: 24 August 2019, CERN</p> <p>&nbsp;</p> M. Omerbashich Copyright (c) https://journal.geophysicsjournal.com/JofG/article/view/73 Tue, 22 Oct 2019 00:00:00 +0000