Results 61 to 70 of about 116,799 (248)

Exploring the link between large earthquakes and magma transport at the onset of the Mayotte volcano-seismic crisis

Comptes Rendus. Géoscience, 2022
The archipelago of Comoros was generally considered a moderately seismic region. However, since May 2018, unusual seismicity has been observed off the east coast of Mayotte Island.
Morales-Yáñez, Catalina, Duputel, Zacharie, Rivera, Luis   +2 more
doaj   +1 more source

Validation of ShakeMaps Created From Global Navigation Satellite System (GNSS) Velocities

Earthquake Spectra, Volume 42, Issue 3, August 2026.
Ground velocity observations generated through a time difference of Global Navigation Satellite Systems (GNSS) phase observables and orbits have been shown to be comparable to seismic recordings without clipping during intense ground motions. Computing GNSS velocities is also computationally scalable and increases the density of ground motion ...
Jensen V. DeGrande, Brendan W. Crowell
wiley   +1 more source

Satellite‐Based Assessment of Methane Emissions From the Darvaza Gas Crater

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Methane is a potent greenhouse gas, and the Darvaza crater in Turkmenistan is a rare, persistent emitter. There are uncertainties regarding its formation date (either 1963 or 1971), fire ignition, and the fire's influence on methane release. Using historical Landsat imagery, we reconstruct the fire history, identifying that combustion began ...
Adriana Valverde, Itziar Irakulis‐Loitxate, Javier Gorroño, Zhipeng Pei, Javier Roger, Luis Guanter   +5 more
wiley   +1 more source

Correction to: Magnitude–frequency distribution of volcanic explosion earthquakes

Earth, Planets and Space, 2017
Magnitude–frequency distributions of volcanic explosion earthquakes that are associated with occurrences of vulcanian and strombolian eruptions, or gas burst activity, are examined at six active volcanoes.
Takeshi Nishimura, Masato Iguchi, Mohammad Hendrasto, Hiroshi Aoyama, Taishi Yamada, Maurizio Ripepe, Riccardo Genco   +6 more
doaj   +1 more source

Frequency‐Dependent Acoustic Reflection Coefficients of Flat Ground Assessed Using the Sonic Boom From the OSIRIS‐Rex Sample Return Capsule Recorded on Free Flying Balloons

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Low frequency sound can travel great distances in planetary atmospheres. When these waves reflect off the air/ground interface, energy may be absorbed or transferred to mechanical waves in the subsurface. This study describes the direct and reflected acoustic wave generated by the re‐entry of the OSIRIS‐REx Sample Return Capsule captured on a ...
Daniel C. Bowman, Jonathan M. Lees, Siddharth Krishnamoorthy, Elizabeth A. Silber, Jacob S. Izraelevitz, Ashish Goel, Emalee Hough, Zach Yap, Mirza Samnani, Michael J. Fleigle, Justin R. LaPierre, James A. Cutts, Attila Komjathy   +12 more
wiley   +1 more source

An analytical model for gas overpressure in slug-driven explosions : insights into Strombolian volcanic eruptions [PDF]

, 2012
Strombolian eruptions, common at basaltic volcanoes, are mildly explosive events that are driven by a large bubble of magmatic gas (a slug) rising up the conduit and bursting at the surface.
Scarlato, Piergiorgio, Lane, Stephen, Del Bello, Elisabetta, Llewellin, Edward W., Elisabetta Del Bello, Jacopo Taddeucci, Steve J. Lane, Edward W. Llewellin, Taddeucci, Jacopo, Piergiorgio Scarlato   +9 more
core   +1 more source

Subglacial volcano monitoring with fibre-optic sensing: Grímsvötn, Iceland

Volcanica, 2023
We present a distributed acoustic sensing (DAS) experiment at Grímsvötn, Iceland. This is intended to investigate volcano-microseismicity at Grímsvötn specifically, and to assess the suitability of DAS as a subglacial volcano monitoring tool in general ...
Sara Klaasen, Solvi Thrastarson, Yeşim Çubuk-Sabuncu, Kristín Jónsdóttir, Lars Gebraad, Patrick Paitz, Andreas Fichtner   +6 more
doaj   +1 more source

Seismic Evidence for Slab Tearing Beneath the Indo‐Myanmar Subduction Zone

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Slab tearing has been increasingly recognized as a key geodynamic process influencing the evolution of the eastern Himalayan syntaxis. However, whether, where and how the subducted Indian slab beneath the Indo‐Myanmar subduction zone has been torn remains poorly constrained.
Shun Yang, Yumei He, Mingming Jiang, Xiaofeng Liang, Jien Zhang, Chit Thet Mon, Yuan Ling, Guangbing Hou, Myo Thant, Kyaing Sein   +9 more
wiley   +1 more source

Morphology of the Piip submarine volcano in the Komandorsky Basin based on multibeam echosounder data [PDF]

, 2021
We analyzed the bathymetric data obtained during the cruises on the German research vessel “Sonne” using multibeam echosounders within the framework of the Russian-German projects KALMAR (cruise SO201-2, 2009) and BERING (cruise SO249-2, 2016) in the ...
Дозорова К.А., Баранов Б.В., Рашидов В.А., Цуканов Н.В., Вернер Р.А.   +4 more
core   +1 more source

Dense magnetotelluric imaging of the Akan Caldera (Hokkaido, Japan): insights into its magma plumbing system and caldera-forming reservoir

Earth, Planets and Space
To investigate the magma plumbing system beneath the Akan Caldera (Hokkaido, Japan), we conducted broadband magnetotelluric surveys and imaged its three-dimensional resistivity structure to a depth of approximately 30 km.
Tomohiro Inoue, Takeshi Hashimoto, Koki Aizawa, Hiroshi Ichihara, Ryo Tanaka, Yusuke Yamaya   +5 more
doaj   +1 more source