Apart from disturbance inside the earth, what are the other causes of an earthquake?

Explanation

### Step-by-Step Text Solution

1. **Understanding Earthquake Causes**:
- Earthquakes are primarily caused by disturbances within the Earth, particularly due to the movement of tectonic plates. However, there are other causes that can lead to earthquakes.

2. **Volcanic Eruptions**:
- One significant cause of earthquakes is volcanic eruptions. When a volcano erupts, it releases a large amount of energy. This energy can cause the surrounding land to shake, resulting in what is known as a volcanic earthquake. Although these earthquakes are generally minor compared to tectonic earthquakes, they are still a notable cause of seismic activity.

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