P
Peter Gaebler
Researcher at Institute for Geosciences and Natural Resources
Publications - 31
Citations - 607
Peter Gaebler is an academic researcher from Institute for Geosciences and Natural Resources. The author has contributed to research in topics: Geology & Infrasound. The author has an hindex of 7, co-authored 21 publications receiving 382 citations. Previous affiliations of Peter Gaebler include Leipzig University.
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Complex hazard cascade culminating in the Anak Krakatau sector collapse.
Thomas R. Walter,Mahmud Haghshenas Haghighi,Mahmud Haghshenas Haghighi,Felix Schneider,Diego Coppola,Mahdi Motagh,Mahdi Motagh,Joachim Saul,Andrey Babeyko,Torsten Dahm,Valentin R. Troll,Frederik Tilmann,Frederik Tilmann,Sebastian Heimann,Sébastien Valade,Sébastien Valade,Rahmat Triyono,Rokhis Khomarudin,Nugraha Kartadinata,Marco Laiolo,Francesco Massimetti,Francesco Massimetti,Peter Gaebler +22 more
TL;DR: The authors show that Anak Krakatau exhibited an elevated state of activity several months prior to the collapse, including precursory thermal anomalies, an increase in the island’s surface area, and a gradual seaward motion of the southwestern flank.
Journal ArticleDOI
Examining ambient noise using colocated measurements of rotational and translational motion
TL;DR: In this paper, the amplitude ratio of a point measurement of rotation rate and transverse acceleration is used to estimate the back azimuth of the strongest noise source for two different time periods at Wettzell Geodetic Observatory in Germany.
Journal ArticleDOI
IMS observations of infrasound and acoustic-gravity waves produced by the January 2022 volcanic eruption of Hunga, Tonga: A global analysis
Julien Vergoz,Patrick Hupe,Constantino Listowski,A. Le Pichon,Milton Garces,Emanuele Marchetti,Philippe Labazuy,Lars Ceranna,Christoph Pilger,Peter Gaebler,Sven Peter Näsholm,Quentin Brissaud,Piero Poli,Natalie Regina Marie Shapiro,R. De Negri,Pierrick Mialle +15 more
TL;DR: The 15 January 2022 Hunga, Tonga, volcano's explosive eruption produced the most powerful blast recorded in the last century, with an estimated equivalent TNT yield of 100-200 megatons as mentioned in this paper .
Journal ArticleDOI
Seismic scattering and absorption parameters in the W-Bohemia/Vogtland region from elastic and acoustic radiative transfer theory
TL;DR: In this article, the authors used elastic and acoustic radiative transfer theory to estimate seismic scattering and intrinsic attenuation parameters for the crustal structure beneath the W-Bohemia/Vogtland swarm earthquake region close to the border of Czech Republic and Germany.
Journal ArticleDOI
A multi-technology analysis of the 2017 North Korean nuclear test
Peter Gaebler,Lars Ceranna,Nima Nooshiri,Andreas Barth,Simone Cesca,Michaela Frei,Ilona Grünberg,Gernot Hartmann,Karl Koch,Christoph Pilger,J. Ole Ross,Torsten Dahm +11 more
Abstract: . On 3 September 2017 official channels
of the Democratic People's Republic of Korea announced the successful test of
a thermonuclear device. Only seconds to minutes after the alleged nuclear
explosion at the Punggye-ri nuclear test site in the mountainous region in
the country's northeast at 03:30:02 (UTC), hundreds of seismic stations
distributed all around the globe picked up strong and distinct signals
associated with an explosion. Different seismological agencies reported body
wave magnitudes of well above 6.0, consequently estimating the explosive
yield of the device on the order of hundreds of kT TNT equivalent. The
2017 event can therefore be assessed as being multiple times larger in energy
than the two preceding North Korean events in
January and September 2016. This study provides a multi-technology analysis of the 2017 North Korean event
and its aftermath using a wide array of geophysical methods. Seismological
investigations locate the event within the test site at a depth of approximately
0.6 km below the surface. The radiation and generation of P- and S-wave energy in
the source region are significantly influenced by the topography of the Mt.
Mantap massif. Inversions for the full moment tensor of the main event reveal a
dominant isotropic component accompanied by significant amounts of double couple
and compensated linear vector dipole terms, confirming the explosive character
of the event. The analysis of the source mechanism of an aftershock that occurred
around 8 min after the test in the direct vicinity suggest a cavity
collapse. Measurements at seismic stations of the International Monitoring
System result in a body wave magnitude of 6.2, which translates to an yield
estimate of around 400 kT TNT equivalent. The explosive yield is possibly
overestimated, since topography and depth phases both tend to enhance the peak
amplitudes of teleseismic P waves. Interferometric synthetic aperture radar
analysis using data from the ALOS-2 satellite reveal strong surface deformations
in the epicenter region. Additional multispectral optical data from the Pleiades
satellite show clear landslide activity at the test site. The strong surface
deformations generated large acoustic pressure peaks, which were observed as
infrasound signals with distinctive waveforms even at distances of 401 km. In
the aftermath of the 2017 event, atmospheric traces of the fission product
133Xe were detected at various locations in the wider region. While
for 133Xe measurements in September 2017, the Punggye-ri test site is
disfavored as a source by means of atmospheric transport modeling, detections in
October 2017 at the International Monitoring System station RN58 in Russia
indicate a potential delayed leakage of 133Xe at the test site from the
2017 North Korean nuclear test.