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]
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
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
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]
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
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]
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
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]
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
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
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