Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Tidal Forces01:06

Tidal Forces

The origin of Earth's ocean tides has been a subject of continuous investigation for over 2000 years. However, the work of Newton is considered to be the beginning of the proper understanding of the phenomenon. Ocean tides are the result of gravitational tidal forces. These same tidal forces are present in any astronomical body; they are responsible for the internal heat that creates the volcanic activity on Io, one of Jupiter's moons, and the breakup of stars that get too close to black holes.
Cable Subjected to a Distributed Load01:24

Cable Subjected to a Distributed Load

The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
Fluid Pressure over Flat Plate of Constant Width01:05

Fluid Pressure over Flat Plate of Constant Width

When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
Fluid Pressure over Curved Plate of Constant Width01:12

Fluid Pressure over Curved Plate of Constant Width

When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
Precipitation Gravimetry01:03

Precipitation Gravimetry

Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
Buoyancy and Stability for Submerged and Floating Bodies01:11

Buoyancy and Stability for Submerged and Floating Bodies

In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Clinical, Radiographic, and Physiological Correlates of Post-COVID-19 Dyspnea in Military Health System Beneficiaries: Results From the Chronic Impairment With Pulmonary Symptoms (ChIPS) Sub-study.

Open forum infectious diseases·2025
Same author

The infectious diseases clinical research program acute respiratory infection repository protocol: Opportunities to understand current and future epidemics.

PloS one·2025
Same author

An Analysis of SARS-CoV-2 Vaccine Reactogenicity: Variation by Type, Dose, and History, Severity, and Recency of Prior SARS-CoV-2 Infection.

Open forum infectious diseases·2022
Same author

Episodic transport of discrete magma batches beneath Aso volcano.

Nature communications·2021
Same author

Hierarchical interlocked orthogonal faulting in the 2019 Ridgecrest earthquake sequence.

Science (New York, N.Y.)·2019
Same author

LoadDef: A Python-Based Toolkit to Model Elastic Deformation Caused by Surface Mass Loading on Spherically Symmetric Bodies.

Earth and space science (Hoboken, N.J.)·2019

Related Experiment Video

Updated: Jun 25, 2026

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

Large trench-parallel gravity variations predict seismogenic behavior in subduction zones.

Teh-Ru Alex Song1, Mark Simons

  • 1Seismological Laboratory, Division of Geological and Planetary Science, California Institute of Technology, Pasadena, CA 91125, USA. alex@gps.caltech.edu

Science (New York, N.Y.)
|August 2, 2003
PubMed
Summary

Great earthquakes primarily occur in subduction zones with negative trench-parallel gravity anomalies (TPGA). These seismic patterns are stationary over a million years, linked to fore-arc geological structure and plate interface friction.

More Related Videos

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
07:14

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor
07:17

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor

Published on: August 3, 2018

Related Experiment Videos

Last Updated: Jun 25, 2026

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
07:14

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor
07:17

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor

Published on: August 3, 2018

Area of Science:

  • Geophysics
  • Seismology
  • Tectonics

Background:

  • Subduction zones are critical sites for large earthquakes.
  • Understanding spatial variations in seismicity is key to seismic hazard assessment.
  • The role of fore-arc geological structure in controlling earthquake occurrence is debated.

Purpose of the Study:

  • To investigate the relationship between trench-parallel gravity anomalies and the occurrence of great earthquakes.
  • To determine if seismogenic behavior in subduction zones is stationary over geological timescales.
  • To explore the influence of fore-arc geological structure on seismic activity.

Main Methods:

  • Analysis of earthquake distribution in relation to trench-parallel gravity anomalies (TPGA).
  • Correlation of seismogenic behavior with geological structures of the fore-arc.
  • Modeling the influence of plate interface frictional properties on gravity and seismicity.

Main Results:

  • Great earthquakes predominantly occur in regions with strongly negative TPGA.
  • Regions with strongly positive TPGA exhibit significantly lower seismicity.
  • Spatial variations in seismogenic behavior are stationary over at least 1 million years.
  • Observed correlations are consistent with frictional property variations controlling fore-arc characteristics.

Conclusions:

  • Fore-arc geological structure, specifically TPGA, is a strong indicator of great earthquake occurrence.
  • Seismic behavior at subduction zones is largely controlled by stationary variations in plate interface friction.
  • These findings have implications for understanding seismic hazards and plate tectonics.