Results 81 to 90 of about 18,474 (268)

Slip weakening, strain and short-termpreseismic disturbances

open access: yesAnnals of Geophysics, 2004
The problem of short-term earthquake precursors is discussed. In contrast to the increasing number of reports on short-lived precursors of various types, direct strain measurements cannot detect clearly expressed preseismic anomalies, as follows from the
V. A. Morgounov
doaj   +1 more source

Dragon-kings: mechanisms, statistical methods and empirical evidence

open access: yes, 2012
This introductory article presents the special Discussion and Debate volume "From black swans to dragon-kings, is there life beyond power laws?" published in Eur. Phys. J. Special Topics in May 2012.
A. Akaev   +108 more
core   +1 more source

Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta   +9 more
wiley   +1 more source

Unpacking Resilience in Public Administration: Insights From a Meta‐Narrative Review

open access: yesPublic Administration Review, EarlyView.
ABSTRACT Increasing environmental complexity and uncertainty have made organizational resilience a key concern in public administration. Yet its inherent ambiguity calls for a systematic examination of its conceptualizations, operationalizations, and applications. This meta‐narrative review synthesizes 49 studies, advancing the discourse by identifying
Jixiang Li, Shui‐Yan Tang, Bo Wen
wiley   +1 more source

Spatial–temporal variations of b-values prior to medium-to-large earthquakes in Taiwan and the feasibility of real-time precursor monitoring

open access: yesEarth, Planets and Space
This study explores the b-value variations prior to M ≥ 6.0 earthquakes in Taiwan, examining their potential as earthquake precursors. Focusing on the 2018 Hualien earthquake and others between 1999 and 2021, we found that many large earthquakes occurred
Chung-Han Chan, Jo-Chen Kao, Da-Yi Chen
doaj   +1 more source

Magnetotelluric Monitoring of Earthquake Precursors

open access: yesGeoHazards
Approaches to magnetotelluric monitoring of variations in apparent resistivity and electromagnetic emission that may serve as earthquake precursors are considered.
Alexander K. Saraev   +7 more
doaj   +1 more source

Icequakes coupled with surface displacements for predicting glacier break-off

open access: yes, 2010
A hanging glacier at the east face of Weisshorn (Switzerland) broke off in 2005. We were able to monitor and measure surface motion and icequake activity for 25 days up to three days prior to the break-off.
Allen   +13 more
core   +1 more source

A Spectral Matching Algorithm Based on the Wasserstein Metric

open access: yesJournal of Chemometrics, Volume 40, Issue 6, June 2026.
ABSTRACT Through visual inspection, scientists can easily judge the similarity of pairs of spectra from different sources, whether they are experimental measurements, spectra libraries, or spectra calculations. Spectral similarity is recognized when the peak patterns appear similar, even if the peak positions are shifted or the peak amplitudes are ...
Klaus Neymeyr   +7 more
wiley   +1 more source

Power Laws, Precursors and Predictability During Failure

open access: yes, 2004
We investigate the dynamics of a modified Burridge-Knopoff model by introducing a dissipative term to mimic the bursts of acoustic emission (AE) from rock samples.
Bufe C. G.   +16 more
core   +3 more sources

An Overview of Tsunami Hazards in the Southwest Pacific Ocean

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
The southwest Pacific region is geologically complex and exhibits all the principal causes of tsunami generation. While contemporary events and historical catalogs indicate that trans‐Pacific tsunamis have affected this area (∼18% of tsunamis reported globally), it is unique in that a large part of the tsunami effects over the ∼200‐year historical ...
Jean H. M. Roger   +13 more
wiley   +1 more source

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