Peter J. Haeussler

Re-examination of the 1958 Huslia earthquake sequence and regional tectonics of the northwestern Koyukuk Basin, Alaska

Diane I. Doser, Mark R. Baker, Peter J. Haeussler

us (code pays fourni par la source)

Database of Active Faults Near Icy Bay, Alaska

Peter J. Haeussler, M. A. L. Walton, Sean S Gulick, Naoma McCall et autres

This dataset provides a detailed (1:100,000) digital map of fault and fold traces near Icy Bay, Alaska, USA based on features identified in the study of McCall et al. (2026), Haeussler et al. (2024), and Gulick et al. (2013). The fault traces …

us (code pays fourni par la source)

The 1912 Ms 7.2 Earthquake in the Denali Region of Central Alaska

Carl Tape, Anthony Lomax, Sean P. Bemis, Peter J. Haeussler et autres

ABSTRACT The 2002 Mw 7.9 earthquake in central Alaska ruptured 340 km on three faults—Susitna Glacier thrust fault, Denali fault, Totschunda fault—crossing both the Richardson Highway and the Alaska Pipeline. Its occurrence prompted renewed interest in historical large earthquakes that possibly originated …

us (code pays fourni par la source)

Near-Surface Material and Topography Generate Anomalous High-Frequency Ground-Motion Amplification in Chugiak, Alaska

Te‐Yang Yeh, K. B. Olsen, J. H. Steidl, Peter J. Haeussler

ABSTRACT An ∼3 km long nodal array oriented approximately east–west was deployed in Chugiak, Alaska, by the U.S. Geological Survey during 2021. The array intersects with the permanent NetQuakes station NP.ARTY, where peak ground acceleration (PGA) value of 1.98g was recorded during …

us (code pays fourni par la source)

Refining the earthquake history of south-central Alaska through lake records

Nore Praet, Maarten Van Daele, Katleen Wils, Peter J. Haeussler et autres

The Alaska–Aleutian subduction zone (AASZ) is one of the world's most seismically active plate boundaries and the source of the 1964 M w 9.2 Great Alaska earthquake–the second largest instrumentally recorded earthquake in the world. Understanding the nature and frequency of such …

be, us, ca, at (code pays fourni par la source)

New Model for the 2018 M W 7.9 Offshore Kodiak Earthquake: Rupture of Many Parallel Strike-Slip Faults

Patrick R. Matulka, Douglas A. Wiens, G. A. Abers, N. A. Ruppert et autres

• Aftershocks and seismic profiles offer a new rupture model for the 2018 Offshore Kodiak Earthquake with N-S en echelon strike-slip faults • Static Coulomb triggering from the mainshock rupture caused later subevents and aftershocks to reactivate adjacent abyssal hill faults • …

us (code pays fourni par la source)

Outcrop to Microscale Field Observations of a Unique On-Land Exposure of an Active Long-Lived Tsunamigenic Splay Fault in South Central Alaska

Alysa Fintel, Harold Tobin, Peter J. Haeussler

In the 1964 Mw 9.2 megathrust earthquake in South Central Alaska, a megathrust splay fault on Montague Island had co-seismic surface rupture and up to 10 meters of . The offshore expression of this fault has been proposed to be the source …

us (code pays fourni par la source)

An Alaska–Aleutian Subduction Zone Interface Earthquake Recurrence Model From Geology and Geodesy

Richard W. Briggs, Robert C. Witter, Jeffrey T. Freymueller, Peter M. Powers et autres

We present an earthquake recurrence model for the subduction interface of the Alaska–Aleutian subduction zone from geodetic and paleoseismic data. To capture variations in rupture behavior along strike, we define fault sections based on geodetic coupling, prehistoric earthquake and tsunami recurrence, historical …

us, gb (code pays fourni par la source)

Updating the Crustal Fault Model for the 2023 National Seismic Hazard Model for Alaska

Peter J. Haeussler, Adrian M. Bender, Peter M. Powers, R. D. Koehler et autres

We present the crustal fault model for Alaska, based on geologic observations, as a primary input for the 2023 revision of the U.S. Geological Survey National Seismic Hazard Model. We update the 2013 Alaska Quaternary fault and fold database to produce a …

us (code pays fourni par la source)

Oblique Contraction Along the Fastest Ocean–Continent Transform Plate Boundary Focuses Rock Uplift West of the Fairweather Fault, Southeast Alaska

Robert C. Witter, Harvey M. Kelsey, Richard O. Lease, Adrian M. Bender et autres

Contraction along the Yakutat–North America plate boundary drives 4.6–9.0 mm/year Holocene rock uplift rates along Earth's fastest slipping (≥49 mm/year) ocean–continent transform fault, the Fairweather Fault. Between Icy Point and Lituya Bay, the near-vertical Fairweather fault focuses rock uplift and rapid right-lateral …

us (code pays fourni par la source)

Constraining the Earthquake Recording Threshold of Intraslab Earthquakes With Turbidites in South‐Central Alaska's Lakes and Fjords

Drake M. Singleton, Daniel S. Brothers, Peter J. Haeussler, Robert C. Witter et autres

Strong ground motion from intraslab earthquakes, which do not produce primary paleoseismic evidence, may initiate gravity-driven turbidity flows in subaqueous basins. The resulting deposits (turbidites) can provide a paleoseismic proxy if the conditions that initiate these flows are known. To better constrain …

us (code pays fourni par la source)

Anomalously high relief on Denali, Alaska, caused by tectonic, lithologic, and climatic drivers

Ari Matmon, Peter J. Haeussler, Michael G. Loso

il, us (code pays fourni par la source)