Results 31 to 40 of about 97,855 (331)

Multifractal Scaling of Thermally-Activated Rupture Processes

, 2004
We propose a ``multifractal stress activation'' model combining thermally activated rupture and long memory stress relaxation, which predicts that seismic decay rates after mainshocks follow the Omori law $\sim 1/t^p$ with exponents $p$ linearly ...
A. Helmstetter, D. Sornette, D. Sornette, D. Sornette, D. L. Wells, F. Schmitt, G. Ouillon, G. Parisi, M. V. Rodkin, Y. Y. Kagan   +9 more
core   +1 more source

Mainshocks are aftershocks of conditional foreshocks: How do foreshock statistical properties emerge from aftershock laws [PDF]

, 2003
The inverse Omori law for foreshocks discovered in the 1970s states that the rate of earthquakes prior to a mainshock increases on average as a power law ~ 1/(t_c-t)^p' of the time to the mainshock occurring at t_c.
Abercrombie, Agnew, Agnès Helmstetter, Aki, Berg, Bowman, Bufe, Cagnetti, Console, Davis, Didier Sornette, Dodge, Enescu, Felzer, Gabrielov, Gabrielov, Gross, Guo, Hainzl, Helmstetter, Helmstetter, Huang, Ikegami, Imoto, Jaumé, Jean-Robert Grasso, Jones, Jones, Kagan, Kagan, Kagan, Kagan, Kagan, Keilis-Borok, Keilis-Borok, Keilis-Borok, Kisslinger, Kisslinger, Knopoff, Li, Lindh, Ma, Maeda, Michael, Mogi, Mogi, Molchan, Molchan, Molchan, Molchan, Narteau, Ogata, Ogata, Ogata, Omori, Omori, Page, Papazachos, Papazachos, Papazachos, Papazachos, Pelletier, Reasenberg, Reasenberg, Reasenberg, Rotwain, Sammis, Scholz, Shaw, Smith, Smith, Sornette, Sornette, Sornette, Sornette, Stephens, Suyehiro, Tajima, Utsu, von Seggern, Wu, Wyss, Yamanaka, Yamashina, Yamashita, Yamashita, Yamashita, Zhang, Zöller   +88 more
core   +5 more sources

Earthquake is Predicted

, 2023
Abstract Earthquake prediction is a global challenge. Seismologists have established a large number of observation stations in active seismic areas that provide massive, continuous, and complete geomagnetic and geoacoustic data from different regions.
Peng Liu, Zhongqiang Gao, Xi Chen, Xiaodong Zhang, Huizhong Chen, Hao Yang, Minxuan Qin, Xu Liu, Ming Ma, Jiabin Yuan, Shanshan Yong   +10 more
openaire   +1 more source

Preliminary risk assessment of earthquake disasters in Ningbo

地震科学进展, 2020
Based on the classical model of natural disaster risk assessment and Ningbo’s reality, this paper explores the establishment of an index system for earthquake disaster risk assessment.
Beilei Zhang, Xiao Peng, Haobo Zhou
doaj   +1 more source

Focal depth determination of earthquakes with M≥2.5 in Jiaokou reservoir area in 2019 by multiple methods

地震科学进展, 2023
In this paper, the focal depth of earthquakes with magnitude 2.5 or above in Jiaokou reservoir area in 2019 was determined using the CAP method, the sPL depth phase method and the double difference positioning method.
Xiao Peng, Beilei Zhang
doaj   +1 more source

Probabilistic Analysis of the Economic Impact of Earthquake Prediction Systems [PDF]

, 2014
This research initiates from the question of whether or not earthquake prediction systems are actually worth investing in, as the cost of operating such systems is quite large compared to the number of lives which may be saved and, furthermore, false ...
Yuan, Ruyue
core   +2 more sources

Earthquake Science Explained [PDF]

This booklet features a collection of articles originally published for teachers by the San Francisco Chronicle. It presents some of the new understanding gained and scientific advances made in the century since the Great 1906 San Francisco Earthquake ...

core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Discussion on precise location, focal mechanism and seismogenic mechanism of Jiaokou reservoir earthquakes

地震科学进展, 2023
Jiaokou reservoir earthquakes in Ningbo from 2009 to 2021 were relocated using the double difference positioning method. The focal mechanism solutions of large earthquakes were calculated by HASH method.
Beilei Zhang, Xiao Peng
doaj   +1 more source

Modification of the pattern informatics method for forecasting large earthquake events using complex eigenvectors

, 2005
Recent studies have shown that real-valued principal component analysis can be applied to earthquake fault systems for forecasting and prediction. In addition, theoretical analysis indicates that earthquake stresses may obey a wave-like equation, having ...
A. Donnellan, Arfken, Bracewell, Burger, Cover, Egger, Horel, J.B. Rundle, J.R. Holliday, Joliffee, K.F. Tiampo, Kim, Molchan, Mori, Murphy, Penland, Rundle, Rundle, Savage, Scholz, Tiampo, Tiampo, W. Klein, Wu, Zhang   +24 more
core   +1 more source