Results 71 to 80 of about 2,076 (205)

Shear-Wave Velocity Characterization of the USGS Hawaiian Strong-Motion Network on the Island of Hawaii and Development of an NEHRP Site-Class Map [PDF]

open access: yes, 2011
To assess the level and nature of ground shaking in Hawaii for the purposes of earthquake hazard mitigation and seismic design, empirical ground-motion prediction models are desired.
Cox, Brady R.   +7 more
core   +1 more source

Interevent Seismicity Statistics Associated With the 2018 Quasiperiodic Collapse Events at Kīlauea, HI, USA

open access: yesEarth and Space Science, 2020
Following the Mw 6.9 Hawaiian earthquake on 4 May 2018, a remarkable quasiperiodic sequence of collapse events began at Halema'uma'u Crater at the summit of Kīlauea Volcano.
Rebecca A. Fildes   +3 more
doaj   +1 more source

Variations in Hawaiian Plume Flux Controlled by Ancient Mantle Depletion

open access: yesAGU Advances, Volume 6, Issue 2, April 2025.
Abstract Mantle plumes—upwellings of buoyant rock in Earth's mantle—feed hotspot volcanoes such as Hawai‘i. The size of volcanoes along the Hawai‘i–Emperor chain, and thus the magma flux of the Hawaiian plume, has varied over the past 85 million years. Fifteen and two million years ago, rapid bursts in magmatic production led to the emergence of large ...
Paul Béguelin   +5 more
wiley   +1 more source

Volcanic Emissions Injury to Plant Foliage [PDF]

open access: yes, 2008
A new vent opened in Kilauea volcano on the island of Hawaii increased emissions of sulfur dioxide into the atmosphere in early 2008. The publication discusses the effects of the increased volcanic output on foliar injury to plants, what can be done to ...
Nelson, Scot, Sewake, Kelvin
core  

The Hidden Internal Flow Dynamics of Shear‐Thinning Magma in Dikes

open access: yesAGU Advances, Volume 6, Issue 2, April 2025.
Abstract The viscosity of magma has a first‐order control on the explosivity and hazards of a volcanic eruption, and the detection of diking within the subsurface may indicate an eruption is imminent. As magma approaches the surface it is highly likely it will have a non‐Newtonian shear‐thinning rheology (apparent viscosity decreases as shear rate ...
Janine L. Kavanagh   +3 more
wiley   +1 more source

The Rupture Process of the 2018 M-w 6.9 Hawai'i Earthquake as Imaged by a Genetic Algorithm-Based Back-Projection Technique [PDF]

open access: yes, 2019
An episode of unrest began at Klauea in April 2018 that produced both significant volcanic output and high rates of seismicity, including a M-w 6.9 earthquake on 4 May 2018.
Kehoe, H. L., Kiser, E. D., Okubo, P. G.
core   +1 more source

Weak Crust Owing Past Magmatic Intrusions Beneath Campi Flegrei Identified: The Engine for Bradyseismic Movements?

open access: yesAGU Advances, Volume 6, Issue 2, April 2025.
Abstract Calderas often experience extended periods of unrest that are challenging to relate to a magmatic or hydrothermal origin, making it crucial to assemble a clear picture of these dynamics. Since 2005, Campi Flegrei caldera (Italy) has experienced accelerating ground uplift, seismicity rates, and degassing.
Gianmarco Buono   +10 more
wiley   +1 more source

Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawai'i. [PDF]

open access: yes, 2020
Distorted olivines of enigmatic origin are ubiquitous in erupted products from a wide range of volcanic systems (e.g., Hawai'i, Iceland, Andes). Investigation of these features at Kīlauea Volcano, Hawai'i, using an integrative crystallographic and ...
Edmonds, Marie   +3 more
core   +2 more sources

Uncertainty Analysis of Remotely-Acquired Thermal Infrared Data to Extract the Thermal Properties of Active Lava Surfaces

open access: yesRemote Sensing, 2020
Using thermal infrared (TIR) data from multiple instruments and platforms for analysis of an entire active volcanic system is becoming more common with the increasing availability of new data.
James O. Thompson, Michael S. Ramsey
doaj   +1 more source

Reconstructing Magma Storage Depths for the 2018 Kı̄lauean Eruption From Melt Inclusion CO2 Contents: The Importance of Vapor Bubbles

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The 2018 lower East Rift Zone (LERZ) eruption and the accompanying collapse of the summit caldera marked the most destructive episode of activity at Kı̄lauea Volcano in the last 200 years.
Penny E. Wieser   +10 more
doaj   +1 more source

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