M. E. West
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Searching for Seismic Precursors—The Barry Landslide Hazard Open
The Barry Landslide, located in Barry Arm of Prince William Sound, Alaska, poses a major hazard due to its steep, unstable slopes, and the potential for a massive landslide-generated tsunami. With an estimated volume of 500–700 million cub…
Earthquake Early Warning Scenarios for Alaska Open
Alaska presents several challenges for earthquake early warning (EEW) systems. These include the presence of offshore earthquakes, transform boundaries, and crustal faults extending hundreds of kilometers, deep earthquakes, and a complicat…
2024 Surprise Inlet Landslides: Insights From a Prototype Landslide‐Triggered Tsunami Monitoring System in Prince William Sound, Alaska Open
Alaska's coastal communities face growing landslide hazards owing to glacier retreat and extreme weather intensified by the warming climate, yet hazard monitoring remains challenging. As part of ongoing experimental monitoring in Prince Wi…
Challenges and Opportunities of Machine Learning Earthquake Detection for Regional Monitoring Open
Machine learning (ML) earthquake phase detection algorithms continue to gain popularity and are routinely used to generate research catalogs with thousands of previously uncatalogued events. Many ML algorithms are available pretrained on l…
Storms, Sea Ice, and Microseismic Noise in Alaska Open
Using 155 distributed seismic stations spanning Alaska and western Canada, we document how environmental factors like storms and sea ice influence microseismic noise. We examine power spectral densities of continuous seismic data and focus…
Appropriateness of the McNamara and Buland's (2004) methodology for computing frequency-dependent seismic power Open
The methodology developed by McNamara and Buland (2004) for computing Power Spectral Densities (PSDs) has gained popularity due to its low computational cost and reduction of spectral variance. This methodology is widely used in seismic no…
Discrimination between icequakes and earthquakes in southern Alaska: an exploration of waveform features using Random Forest algorithm Open
SUMMARY This study examines the feature space of seismic waveforms often used in machine learning applications for seismic event detection and classification problems. Our investigation centres on the southern Alaska region, where the seis…
Toward the Rapid Seismic Assessment of Landslides in Coastal Alaska Open
As glaciers retreat, landslide-driven tsunamis pose mounting threats across the high latitudes. The recent landslide tsunamis in Alaska and Greenland have spurred efforts to forecast and monitor these events. We use nine large landslides s…
Kinematic Evolution of a Large Paraglacial Landslide in the Barry Arm Fjord of Alaska Open
Our warming climate is adversely affecting cryospheric landscapes via glacial retreat, permafrost degradation, and associated slope destabilization. In Prince William Sound, Alaska, the rapid retreat of Barry Glacier has destabilized the s…
Classification of seismic activity at the Lazufre Volcanic System, based on 2011 to 2012 data Open
The Lazufre Volcanic System (LVS), on the border of northern Chile and Argentina, is an active complex of two volcanoes, Lastarria to the north and Cordón del Azufre to the south. The LVS is not regularly monitored with any scientific equi…
View article: How Alaska’s Barry Arm Can Help Us Prepare for Climate Change Hazards
How Alaska’s Barry Arm Can Help Us Prepare for Climate Change Hazards Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]How Alaska’s Barry Arm Can Help Us Prepare for Climate Change HazardsAuthorsBretwoodHigmaniDChadBriggsJeffreyCoeChunliDaiAnjaDufresneJe…
Regional tsunami hazard assessment for the communities of Kasaan, Klawock, Metlakatla, Pelican, Point Baker, and Point Protection in Southeast Alaska Open
We assess potential tsunami hazards for six communities in Southeast Alaska: Kasaan, Klawock, Metlakatla, Pelican, Point Baker, and Port Protection.These communities have no high-resolution bathymetry or topography, therefore we conduct ts…
Causes of volcanic unrest at Mt. Spurr in 2004–2005 inferred from repeated tomography Open
Mt. Spurr is the largest active volcano in Alaska of high explosive potential. The most recent activity, including two recent magmatic eruptions in 1953 and 1992, has occurred via the flanking Crater Peak. From 2004 to 2006, strong seismic…
Complex Faulting and Triggered Rupture During the 2018 M<sub>W</sub>7.9 Offshore Kodiak, Alaska, Earthquake Open
We combine aftershock relocations, source mechanisms, teleseismic P wave backprojection, and Global Positioning System data inversion to constrain complex faulting geometry of the 2018 M W 7.9 offshore Kodiak earthquake. Relocated aftersho…
View article: Synthesis: PLUTONS: Investigating the relationship between pluton growth and volcanism in the Central Andes
Synthesis: PLUTONS: Investigating the relationship between pluton growth and volcanism in the Central Andes Open
The Central Andes is a key global location to study the enigmatic relation between volcanism and plutonism because it has been the site of large ignimbrite-forming eruptions during the past several million years and currently hosts the wor…
Focused magmatism beneath Uturuncu volcano, Bolivia: Insights from seismic tomography and deformation modeling Open
We have carried out a tomographic inversion for seismic velocity in the vicinity of Uturuncu volcano (Bolivia) based on a 33-station temporary seismic network deployment. We combine travel times from earthquakes in the shallow crust with t…
Three different types of plumbing system beneath the neighboring active volcanoes of Tolbachik, Bezymianny, and Klyuchevskoy in Kamchatka Open
The Klyuchevskoy group of volcanoes (KGV) in Kamchatka includes three presently active volcanoes (Klyuchevskoy, Bezymianny, and Tolbachik) located close together in an area of approximately 50 × 80 km. These three volcanoes have completely…