Act of God (Vis Major)

Introduction

In some situations, harm may occur because of extraordinary natural forces that humans cannot control or prevent. In such cases, the law may excuse a person from liability if the damage was caused purely by natural events.

This defence is known as Act of God or Vis Major, which refers to natural events that are so unexpected and powerful that no human foresight or care could prevent them.

Meaning / Definition

An Act of God may be defined as a natural event that no human foresight can predict and no human care or skill can prevent.

These events occur without any human intervention and are considered unavoidable. Therefore, when damage is caused solely by such natural forces, the defendant may not be held liable.

Examples of Act of God include:

• Flash of lightning
• Tornado or cyclone
• Severe storms or tempests
• Extraordinary floods
• Volcanic eruptions
• Sudden natural disasters

However, ordinary natural events that could be reasonably anticipated or guarded against may not qualify as an Act of God.

Modes or Types

Externality (Natural Forces)

The event must be caused by purely natural forces without any human intervention or involvement.

If human action contributed to the damage, the defence of Act of God may not apply.

Unpredictability

The event must be extraordinary and unpredictable.

This means that a reasonable person could not have anticipated the occurrence of the event based on normal experience.

Irresistibility

The event must be so powerful that it could not be prevented by any reasonable precaution.

Even if a person had taken all necessary care, the damage would still have occurred.

Limited Scope of the Defence

Today, the scope of this defence is quite limited because scientific and technological progress has improved our ability to predict natural events.

Courts now expect individuals and authorities to anticipate and guard against many natural risks, such as heavy rain, storms, or flooding.

Therefore, the defence is accepted only in truly extraordinary situations.

Important Case Law

Nicholas v. Marshland

The defendant constructed artificial lakes fed by a natural stream. An extraordinary rainfall caused the banks of the lakes to burst, and floodwater destroyed nearby bridges. The court held that the rainfall was so unusual and unexpected that it amounted to an Act of God. Since the defendant was not negligent, he was not held liable.

Ramalinga Nadar v. Narayana Reddiar

The Kerala High Court held that criminal acts of an unruly mob cannot be treated as an Act of God. Since the event involved human action, the defence was not applicable.

Saraswati Parabhai v. Grid Corporation of Orissa

An electric pole fell during a storm and caused the death of a person due to a live wire. The Orissa High Court rejected the defence of Act of God and held that the electricity authority had a duty to take precautions during storms and rain.

Practical Example

Suppose a person builds a properly designed dam that functions safely under normal conditions. If an extremely rare and unprecedented flood occurs and destroys the dam despite all reasonable precautions, the damage may be considered the result of an Act of God.

In such a situation, the person responsible for the dam may not be held liable, because the disaster was beyond human control and prediction.

Summary

• Act of God (Vis Major) is a defence in tort law for damage caused solely by extraordinary natural forces.
• It refers to events that no human foresight could predict and no reasonable care could prevent.
• Examples include lightning, tornadoes, severe floods, and volcanic eruptions.
• The defence requires three conditions: natural forces, unpredictability, and irresistibility.
• Courts decide whether an event is an Act of God based on the facts of each case.
• With scientific progress, the scope of this defence has become more limited.
• If human negligence contributed to the damage, the defence cannot be used.