Results 11 to 20 of about 6,766 (163)

Imaging the Deep Subsurface Plumbing of Old Faithful Geyser From Low‐Frequency Hydrothermal Tremor Migration [PDF]

Geophysical Research Letters, 2019
AbstractOld Faithful Geyser in Yellowstone is one of the most well‐known hydrothermal features in the world. Despite abundant geophysical studies, the structure of Old Faithful's plumbing system beneath ~20‐m depth remained largely elusive. By deploying a temporary dense three‐component geophone array, we observe 1–5 Hz low‐frequency hydrothermal ...
Sin-Mei Wu, Amir Allam, Fan-Chi Lin
exaly   +2 more sources

Tectonic Tremor Reveals Slow Deformation Along the Antarctic–South American Subduction Zone

Geophysical Research Letters
The Antarctic–South American subduction zone is among the least explored convergent margins and lacks documented large interplate earthquakes despite ongoing convergence.
K. Azúa, S. Ruiz, S. Ide
doaj   +2 more sources

Very low frequency earthquakes in Cascadia migrate with tremor [PDF]

Geophysical Research Letters, 2015
AbstractWe find very low frequency earthquakes (VLFEs) in Cascadia under northern Washington during 2011 episodic tremor and slip event. VLFEs are rich in low‐frequency energy (20–50 s) and depleted in higher frequencies (higher than 1 Hz) compared to local earthquakes.
Ghosh, Abhijit, Huesca‐Pérez, Eduardo, Brodsky, Emily, Ito, Yoshihiro   +3 more
openaire   +3 more sources

Characterizing and Locating Seismic Tremor during the 2022 Eruption of Mauna Loa Volcano, Hawai’i, with Network Covariance

The Seismic Record, 2023
The 2022 eruption of Mauna Loa Volcano, Hawai’i, was accompanied by continuous seismic tremor that began about 30 min before and ended several days after the eruption.
Sean P. Maher, Phillip Dawson, Alicia Hotovec‐Ellis, Weston A. Thelen, Arthur Jolly, Ninfa Bennington, Jefferson C. Chang, Peter Dotray   +7 more
doaj   +1 more source

Spatiotemporal evolution of tremor activity near the Nankai Trough trench axis inferred from the spatial distribution of seismic amplitudes

Earth, Planets and Space, 2022
Slow earthquakes have gained importance due to their proximity to the focal regions of megathrust earthquakes. Among slow earthquakes, tectonic tremors have the highest dominant frequency and are thus best resolved.
Masashi Ogiso, Koji Tamaribuchi
doaj   +1 more source

Forecasting tectonic tremor activity using a renewal process model

Progress in Earth and Planetary Science, 2022
In many tectonically active regions of the world, a variety of slow deformation phenomena have been discovered and collectively termed slow earthquakes.
Satoshi Ide, Shunichi Nomura
doaj   +1 more source

Harmonic tremor from the deep part of Hakone volcano

Earth, Planets and Space, 2022
The feeding system of magmatic fluid from the volcanic root to a shallow magma reservoir remains a poorly understood issue. Seismic events, including volcanic tremors and low-frequency earthquakes, in a deep part beneath volcanos are key observations for
Yohei Yukutake, Ryou Honda, Motoo Ukawa, Kei Kurita   +3 more
doaj   +1 more source

Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitude

Earth, Planets and Space, 2021
Kusatsu-Shirane volcano hosts numerous thermal springs, fumaroles, and the crater lake of Yugama. Hence, it has been a particular study field for hydrothermal systems and phreatic eruptions.
Taishi Yamada, Aika K. Kurokawa, Akihiko Terada, Wataru Kanda, Hideki Ueda, Hiroshi Aoyama, Takahiro Ohkura, Yasuo Ogawa, Toshikazu Tanada   +8 more
doaj   +1 more source

Cascading rupture of patches of high seismic energy release controls the growth process of episodic tremor and slip events

Earth, Planets and Space, 2021
Slip phenomena on plate interfaces reflect the heterogeneous physical properties of the slip plane and, thus, exhibit a wide variety of slip velocities and rupture propagation behaviors.
Keita Nakamoto, Yoshihiro Hiramatsu, Takahiko Uchide, Kazutoshi Imanishi   +3 more
doaj   +1 more source

Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic observations

Earth, Planets and Space, 2021
The study of slow earthquake activity, which occurs in the shallow and deep sides of seismogenic zone, is crucial for understanding subduction zones, including variations in frictional properties with depth and interplate coupling.
Yusuke Yamashita, Masanao Shinohara, Tomoaki Yamada   +2 more
doaj   +1 more source