Results 31 to 40 of about 1,496 (195)
Regional Characteristics of Observable Foreshocks
, 2022 Measures of foreshock occurrence are systematically examined using earthquake catalogs for eight regions (Italy, southern California, northern California, Costa Rica, Onshore Japan, Alaska, Turkey, and Greece) after imposing a magnitude ≥ 3.0 ...
Lay, Thorne +7 more
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Pervasive Foreshock Activity Across Southern California
Geophysical Research Letters, 2019 Foreshocks have been documented as preceding less than half of all mainshock earthquakes. These observations are difficult to reconcile with laboratory earthquake experiments and theoretical models of earthquake nucleation, which both suggest that ...
Daniel T. Trugman, Zachary E. Ross
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The Unlocking Process Leading to the 2016 Central Italy Seismic Sequence
Geophysical Research Letters, 2023 Approximately 23,000 well‐located earthquakes from 2009 to 2016 are used as templates to recover seismic activity preceding the 2016 Central Italy seismic sequence.
M. Sugan +4 more
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Recognizing the waveform of a foreshock [PDF]
, 2020 Abstract The 2011 Mw9.1 Tohoku, Japan, earthquake is the paradigmatic example of an earthquake anticipated by a significant foreshock activity, with a Mw7.3 earthquake occurred two days before, within about 10 km 1. Recent results 2 show that statistically relevant changes can be found in the magnitude distribution after the Mw7.3 foreshock but
Eugenio Lippiello +2 more
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Precursory slow slip and foreshocks on rough faults
, 2020 Foreshocks are not uncommon prior to large earthquakes, but their physical mechanism controversial. Two interpretations have been put forward: 1. foreshocks are driven by aseismic nucleation; 2.
Camilla Cattania, Paul Segall
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3-D dynamic rupture simulations of the 2016 Kumamoto, Japan, earthquake
Earth, Planets and Space, 2017 Using 3-D dynamic rupture simulations, we investigated the 2016 Mw7.1 Kumamoto, Japan, earthquake to elucidate why and how the rupture of the main shock propagated successfully, assuming a complicated fault geometry estimated on the basis of the ...
Yumi Urata +3 more
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On the Statistical Significance of Foreshock Sequences in Southern California
Geophysical Research Letters, 2020 Earthquake foreshocks may provide information that is critical to short‐term earthquake forecasting. However, foreshocks are far from ubiquitously observed, which makes the interpretation of ongoing seismic sequences problematic.
M. P. A. van denEnde, J.‐P. Ampuero
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Earthquake ScienceMonitoring the evolution of foreshocks can be a valuable way to analyze the nucleation process. Foreshocks accompanying moderate mainshocks have been recorded in the west of Yunnan Province, China.
Gaohua Zhu +2 more
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Cascading foreshocks, aftershocks and earthquake swarms in a discrete fault network [PDF]
, 2023 Earthquakes come in clusters formed of mostly aftershock sequences, swarms and occasional foreshock sequences. This clustering is thought to result either from stress transfer among faults, a process referred to as cascading, or from transient loading by
Avouac, Jean-Philippe +3 more
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Comparing foreshock characteristics and foreshock forecasting in observed and simulated earthquake catalogs [PDF]
Journal of Geophysical Research: Solid Earth, 2014 AbstractIn this paper, we compare the empirical results regarding foreshocks obtained from the Japan data with results for synthetic catalogs in order to clarify whether or not the corresponding results are consistent with the description of the seismicity by a superposition of background activity and epidemic‐type aftershock sequence (ETAS) models ...
Yosihiko Ogata, Koichi Katsura
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