Asperity Distribution of the 1952 Great Kamchatka Earthquake and its Relation to Future Earthquake Potential in Kamchatka

1999 ◽  
pp. 541-553 ◽  
Author(s):  
Jean M. Johnson ◽  
Kenji Satake
Keyword(s):  
Kamchatka Earthquake ◽  
Future Earthquake ◽  
Earthquake Potential ◽  
Asperity Distribution

scholarly journals NOWCASTING EARTHQUAKES IN THE NORTHWEST HIMALAYA AND SURROUNDING REGIONS

2018 ◽  
Vol XLII-5 ◽  
pp. 855-859 ◽  
Author(s):  
S. Pasari ◽  
A. Mehta
Keyword(s):  
Earthquake Hazard ◽  
New Delhi ◽  
Assessment Practice ◽  
Study Region ◽  
Northwest Himalaya ◽  
Earthquake Hazard Assessment ◽  
Geographical Regions ◽  
Future Earthquake ◽  
Novel Method ◽  
Earthquake Potential

<p><strong>Abstract.</strong> With the rapid increase and availability of seismic data, an automatic, transparent and regular way of earthquake hazard estimation strategy is highly desirable in many seismically active large geographical regions. In this paper, we implement a novel method of nowcasting (Rundle et al., 2016) that can indirectly assess the current progression of a region through its earthquake cycle of large events. Nowcasting differs from the method of forecasting in which future earthquake probabilities are calculated. Using statistics of natural times, counts of small earthquakes between large earthquakes in a defined region, nowcasting provides an earthquake potential score (EPS) to enable scientists and city planners a snapshot of the current level of earthquake hazard in the region. Applied to a number of selected major cities in the northwest Himalaya and surrounding regions, we found that the EPS values corresponding to M<span class="thinspace"></span>&amp;geq;<span class="thinspace"></span>6 events in New Delhi, Chandigarh, Dehradun and Shimla reach about 0.56, 0.87, 0.85 and 0.88, respectively. These estimated scores thus indicate that New Delhi is about half-way through its cycle for magnitude 6.0 or higher earthquakes, while Dehradun is about 85 percent of the way through its cycle. Towards the end, we discuss some implications and applications of these nowcast values to improve the present earthquake hazard assessment practice in the study region.</p>

Multi-Methods Combined Analysis of Future Earthquake Potential

2011 ◽  
Vol 170 (1-2) ◽  
pp. 173-183 ◽  
Author(s):  
Huai-zhong Yu ◽  
Jia Cheng ◽  
Xiao-tao Zhang ◽  
Lang-ping Zhang ◽  
Jie Liu ◽  
...  
Keyword(s):  
Combined Analysis ◽  
Future Earthquake ◽  
Earthquake Potential

After the Earth Quakes

2005 ◽  
Author(s):  
Susan Elizabeth Hough ◽  
Roger G. Bilham
Keyword(s):  
Natural Disasters ◽  
Earthquake Risk ◽  
Water Supplies ◽  
Major Earthquake ◽  
The Earth ◽  
Elastic Rebound ◽  
Future Earthquake ◽  
Human Capacity ◽  
Historic Earthquakes ◽  
Earthquake Science

Earthquakes rank among the most terrifying natural disasters faced by mankind. Out of a clear blue sky-or worse, a jet black one-comes shaking strong enough to hurl furniture across the room, human bodies out of bed, and entire houses off of their foundations. When the dust settles, the immediate aftermath of an earthquake in an urbanized society can be profound. Phone and water supplies can be disrupted for days, fires erupt, and even a small number of overpass collapses can snarl traffic for months. However, when one examines the collective responses of developed societies to major earthquake disasters in recent historic times, a somewhat surprising theme emerges: not only determination, but resilience; not only resilience, but acceptance; not only acceptance, but astonishingly, humor. Elastic rebound is one of the most basic tenets of modern earthquake science, the term that scientists use to describe the build-up and release of energy along faults. It is also the best metaphor for societal responses to major earthquakes in recent historic times. After The Earth Quakes focuses on this theme, using a number of pivotal and intriguing historic earthquakes as illustration. The book concludes with a consideration of projected future losses on an increasingly urbanized planet, including the near-certainty that a future earthquake will someday claim over a million lives. This grim prediction impels us to take steps to mitigate earthquake risk, the innately human capacity for rebound notwithstanding.

Late Quaternary uplift and earthquake potential of the San Joaquin Hills, southern Los Angeles basin, California: Comment and Reply

Geology ◽  
2000 ◽  
Vol 28 (4) ◽  
pp. 384
Author(s):  
Lisa B. Grant ◽  
Karl L. Mueller ◽  
Eldon M. Gath ◽  
Rosalind Munro
Keyword(s):  
Los Angeles ◽  
Late Quaternary ◽  
Los Angeles Basin ◽  
Earthquake Potential

Slow slip events and megathrust coupling changes reveal the earthquake potential before the 2020 Mw 7.4 Huatulco, Mexico, event

2020 ◽  
Author(s):  
Carlos Villafuerte ◽  
Víctor M. Cruz-Atienza ◽  
Josué Tago ◽  
Darío Solano-Rojas ◽  
Sara Franco ◽  
...  
Keyword(s):  
Slow Slip ◽  
Slow Slip Events ◽  
Earthquake Potential

Slow slip events and megathrust coupling changes reveal the earthquake potential before the 2020 Mw 7.4 Huatulco, Mexico event

2020 ◽  
Author(s):  
Carlos Villafuerte ◽  
Víctor M. Cruz-Atienza ◽  
Josué Tago ◽  
Darío Solano-Rojas ◽  
Sara Franco ◽  
...  
Keyword(s):  
Slow Slip ◽  
Slow Slip Events ◽  
Earthquake Potential

Slow slip events and megathrust coupling changes reveal the earthquake potential before the 2020 Mw 7.4 Huatulco, Mexico event

2021 ◽  
Author(s):  
Carlos Villafuerte ◽  
Víctor M. Cruz-Atienza ◽  
Josué Tago ◽  
Darío Solano-Rojas ◽  
Ricardo Garza-Girón ◽  
...  
Keyword(s):  
Slow Slip ◽  
Slow Slip Events ◽  
Earthquake Potential

A multidisciplinary approach to seismic hazard in southern California

1994 ◽  
Vol 84 (5) ◽  
pp. 1293-1309
Author(s):  
Steven N. Ward
Keyword(s):  
Seismic Hazard ◽  
Southern California ◽  
Current Model ◽  
Seismic Hazard Assessment ◽  
Historical Seismicity ◽  
San Andreas ◽  
The Pacific ◽  
Moderate Earthquake ◽  
Earthquake Potential ◽  
Seismic Moment Release

Abstract A serious obstacle facing seismic hazard assessment in southern California has been the characterization of earthquake potential in areas far from known major faults where historical seismicity and paleoseismic data are sparse. This article attempts to fill the voids in earthquake statistics by generating “master model” maps of seismic hazard that blend information from geology, paleoseismology, space geodesy, observational seismology, and synthetic seismicity. The current model suggests that about 40% of the seismic moment release in southern California could occur in widely scattered areas away from the principal faults. As a result, over a 30-yr period, nearly all of the region from the Pacific Ocean to 50 km east of the San Andreas Fault has a greater than 50/50 chance of experiencing moderate shaking of 0.1 g or greater, and about a 1 in 20 chance of suffering levels exceeding 0.3 g. For most of the residents of southern California, thelion's share of hazard from moderate earthquake shaking over a 30-yr period derives from smaller, closer, more frequent earthquakes in the magnitude range (5 ≦ M ≦ 7) rather than from large San Andreas ruptures, whatever their likelihood.

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