Resolution and uncertainties in estimates of earthquake stress drop and energy release

RE Abercrombie - … Transactions of the Royal Society A, 2021 - royalsocietypublishing.org
Our models and understanding of the dynamics of earthquake rupture are based largely on
estimates of earthquake source parameters, such as stress drop and radiated seismic …

A review on slow earthquakes in the Japan Trench

T Nishikawa, S Ide, T Nishimura - Progress in Earth and Planetary Science, 2023 - Springer
Slow earthquakes are episodic slow fault slips. They form a fundamental component of
interplate deformation processes, along with fast, regular earthquakes. Recent …

Repeating earthquakes

N Uchida, R Bürgmann - Annual Review of Earth and Planetary …, 2019 - annualreviews.org
Repeating earthquakes, or repeaters, are identical in location and geometry but occur at
different times. They appear to represent recurring seismic energy release from distinct …

Detection of repeating earthquakes and their application in characterizing slow fault slip

N Uchida - Progress in Earth and Planetary Science, 2019 - Springer
Repeating earthquakes (repeaters) that rupture the same fault area (patch) are interpreted to
be caused by repeated accumulation and release of stress on the seismic patch in a …

Measuring basal force fluctuations of debris flows using seismic recordings and empirical green's functions

KE Allstadt, M Farin, RM Iverson… - Journal of …, 2020 - Wiley Online Library
We present a novel method for measuring the fluctuating basal normal and shear stresses of
debris flows by using along‐channel seismic recordings. Our method couples a simple …

Repeating earthquakes with remarkably repeatable ruptures on the San Andreas Fault at Parkfield

RE Abercrombie, X Chen… - Geophysical Research …, 2020 - Wiley Online Library
We calculate rupture directivity and velocity for earthquakes in three well‐recorded
repeating sequences (2001–2016) on the San Andreas Fault at Parkfield using P waves …

Spatio‐temporal evolution of earthquake static stress drop values in the 2016–2017 central Italy seismic sequence

KB Kemna, A Verdecchia… - Journal of Geophysical …, 2021 - Wiley Online Library
The static stress drop of an earthquake is an indicator of the stress state of a specific fault
before rupture initiation. The stress state is primarily controlled by the ambient stress field …

Diminishing high‐frequency directivity due to a source effect: Empirical evidence from small earthquakes in the Abruzzo region, Italy

F Pacor, F Gallovič, R Puglia, L Luzi… - Geophysical Research …, 2016 - Wiley Online Library
The aim of this study is to investigate the directivity effects of~ 250 aftershocks (magnitudes 3–
5.5) of the Mw 6.1 2009 L'Aquila earthquake (central Italy). To this end, we estimate the …

Using a Large‐n Seismic Array to Explore the Robustness of Spectral Estimations

KB Kemna, AF Peña Castro… - Geophysical …, 2020 - Wiley Online Library
Spectral analysis is widely used to estimate and refine earthquake source parameters such
as source radius, seismic moment, and stress drop. This study aims to quantify the precision …

Spatial and temporal variations in earthquake stress drop on Gofar Transform Fault, East Pacific Rise: Implications for fault strength

PA Moyer, MS Boettcher, JJ McGuire… - Journal of Geophysical …, 2018 - Wiley Online Library
Abstract On Gofar Transform Fault on the East Pacific Rise, the largest earthquakes (6.0≤
MW≤ 6.2) have repeatedly ruptured the same portion of the fault, while intervening fault …