I believe those would be vibrations, your very welcome.
Linear back and forth motion at any speed is technically termed "Reciprocating Motion".
The rapid movement of a glacier is called a glacier surge. This sudden acceleration in movement can be caused by internal changes within the glacier, such as the release of stored meltwater or changes in the glacier's structure.
Rapid mass movements occur suddenly and can travel at high speeds due to factors like steep slopes or heavy rainfall, leading to landslides, rockfalls, or avalanches. Slow mass movements, such as soil creep or solifluction, involve gradual downslope movement of material over an extended period, often influenced by factors like gravity and water infiltration. While rapid mass movements pose immediate risks and can cause significant damage, slow mass movements are generally more subtle but can still contribute to landscape changes over time.
A rapid change in density with depth in the ocean is called a thermocline.
The movement you are describing sounds like trembling or shaking. This can be caused by fear, cold, or excitement, and typically involves rapid, involuntary movements back and forth or up and down. If it's persistent, it may be a sign of an underlying health issue and should be evaluated by a medical professional.
That is called oscillation.
Linear back and forth motion at any speed is technically termed "Reciprocating Motion".
Vibration is the rapid back and forth movement that creates sound. When an object vibrates, it creates waves in the air that are perceived as sound by our ears.
Amplitude- The maximum distance to which an oscillating or vibrating object moves from its central position is called amplitude. Vibration- Sound is produced by rapid -to and -fro movements ,called vibrations.
Vibration
Vibration
Rapid back-and-forth eye movements without external stimuli are called nystagmus. Nystagmus can be caused by various factors such as inner ear problems, neurological issues, medication side effects, or fatigue. It's best to consult a healthcare professional for a proper diagnosis and treatment if needed.
The dog's rapid movements made him very difficult to catch.
Vibration is the rapid back and forth movement of an object. It can be caused by a variety of factors such as mechanical forces or energy transfer. Vibrations can range in intensity and frequency, influencing how the movement affects the object or its surroundings.
longitudinal vibration
A vibration.
Electric Discharge