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What is the Seismic Gap Theory?
What is the Seismic Gap Theory?
A theory that states that over a long period of time, the displacement of any segment must be equal to all other parts of the fault.
Provide a case study example related to the Seismic Gap Theory.
Provide a case study example related to the Seismic Gap Theory.
Loma Prieta Seismic gap, San Andreas Fault, California.
What does the Seismic Gap Theory predict?
What does the Seismic Gap Theory predict?
It predicts the relative size and frequency of earthquakes in a given area.
What is a seismic gap?
What is a seismic gap?
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Is the Seismic Gap Theory widely accepted?
Is the Seismic Gap Theory widely accepted?
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Study Notes
Seismic Gap Theory Overview
- The Seismic Gap Theory posits that all segments of a fault must experience equal displacement over time, suggesting that segments with long-standing inactivity are at greater risk for future earthquakes.
- A significant gap is seen as a potential precursor to earthquakes.
Case Study Example
- The Loma Prieta earthquake of 1989 serves as a case study, occurring on the San Andreas Fault in California.
- Prior to the earthquake, the segment involved had recorded significantly less seismic activity than other areas of the fault.
Theory Mechanism
- The theory predicts the size and frequency of earthquakes based on historical seismic activity in specific regions.
- Areas with frequent small earthquakes are less likely to experience large earthquakes, while areas with a long absence of seismic events are more likely to experience significant quakes.
Definition of Seismic Gap
- A seismic gap refers to a segment of an active fault that hasn't experienced significant earthquakes for an extended period, especially when compared to neighboring segments.
Acceptance of the Theory
- The Seismic Gap Theory faces criticism and skepticism from certain sectors of the scientific community regarding its reliability and applicability in earthquake forecasting.
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Description
Explore the Seismic Gap Theory through these informative flashcards. Learn key definitions and real-world case studies that illustrate the theory's implications on earthquake prediction, particularly focusing on significant events like the Loma Prieta earthquake in California.
