Video Experimental Relacionado
Updated: Apr 23, 2026
06:55
Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
Published on: August 5, 2016
7.3K
Interacciones de fallas y grandes terremotos complejos en el área de Los Ángeles
Greg Anderson1, Brad Aagaard, Ken Hudnut
1U.S. Geological Survey, 525 South Wilson Avenue, Pasadena, CA 91106-3212, USA. anderson@unavco.org
Science (New York, N.Y.)
|December 13, 2003
Resumen
Un gran terremoto en la falla norte de San Jacinto podría desencadenar una ruptura importante del sistema de falla de empuje Sierra Madre-Cucamonga, aumentando el riesgo sísmico para Los Ángeles. Es poco probable que otras interacciones de fallas causen rupturas en cascada.
Área de la Ciencia:
- Ciencia de los terremotos ciencia de los terremotos.
- La tectónica es la tectónica.
- La geofísica es la geofísica.
Sus antecedentes:
- Las interacciones de fallas en entornos tectónicos complejos pueden aumentar el riesgo sísmico.
- La comprensión de estas interacciones es crucial para la evaluación del riesgo sísmico.
Objetivo del estudio:
- Para modelar las interacciones de fallas estáticas y dinámicas entre los sistemas de fallas de deslizamiento y empuje en el sur de California.
- Evaluar el potencial de terremotos desencadenados y su impacto en el riesgo sísmico.
Principales métodos:
- Modelado computacional utilizado para simular cambios de tensión estática y dinámica.
- Analizó las interacciones de fallas entre el sistema de empuje de Sierra Madre-Cucamonga y las fallas de deslizamiento de San Andreas y San Jacinto.
Principales resultados:
- Es poco probable que la ruptura de la falla de empuje Sierra Madre-Cucamonga desencadene las fallas de San Andrés o San Jacinto.
- Un terremoto significativo en la falla norte de San Jacinto podría potencialmente desencadenar una ruptura en cascada del sistema Sierra Madre-Cucamonga.
Conclusiones:
- Las rupturas en cascada, particularmente de la falla de San Jacinto, representan un peligro sísmico significativo para la región metropolitana de Los Ángeles.
- Los hallazgos ponen de relieve la naturaleza compleja de las interacciones de fallas y sus implicaciones para la preparación ante terremotos.
Videos de Conceptos Relacionados
01:00Elastic Collisions: Introduction
11.9K
An elastic collision is one that conserves both internal kinetic energy and momentum. Internal kinetic energy is the sum of the kinetic energies of the objects in a system. Truly elastic collisions can only be achieved with subatomic particles, such as electrons striking nuclei. Macroscopic collisions can be very nearly, but not quite, elastic, as some kinetic energy is always converted into other forms of energy such as heat transfer due to friction and sound. An example of a nearly...
11.9K
01:15Elastic Collisions: Case Study
16.9K
Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
16.9K
01:12Local Anesthetics: Adverse Effects
1.0K
While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
1.0K
01:18Fault Types
593
When analyzing a single line-to-ground fault from phase A to ground at a three-phase bus, it is important to consider the fault impedance. This impedance is zero for a bolted fault, equal to the arc impedance for an arcing fault, and represents the total fault impedance for a transmission-line insulator flashover. To derive sequence and phase currents, fault conditions are translated from the phase domain to the sequence domain.
For line-to-line faults occurring between phases B and C, the...
For line-to-line faults occurring between phases B and C, the...
593
01:23Types of Building Separation Joints
791
Building separation joints divide large or complex building structures into smaller, discrete units that can move independently. These joints are categorized into three types: volume-change joints, settlement joints, and seismic separation joints.
Volume-change joints address the effects of expansion and contraction due to temperature and moisture variations. They are strategically placed at discontinuities in a building's mass where cracking is most likely and are spaced about 150 to 200...
Volume-change joints address the effects of expansion and contraction due to temperature and moisture variations. They are strategically placed at discontinuities in a building's mass where cracking is most likely and are spaced about 150 to 200...
791
01:20Elasticity in Concrete
531
Upon subjecting concrete to moderate or high uniaxial compressive or tensile stresses, the strain response is non-linear relative to the stress applied. As the stress is removed, the resulting stress-strain curve deviates from the original path traced during loading, creating a hysteresis loop, indicative of the concrete's non-linear and non-elastic properties. Typically, a material's modulus of elasticity, which is a measure of the material's stiffness, is inferred from the linear...
531