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1. What caused the powerful earthquake in Kamchatka, Russia?
The Kamchatka earthquake, measuring magnitude 8.8, occurred due to the subduction of the Pacific Plate beneath the Eurasian Plate. This region lies along the eastern edge of the Ring of Fire — a tectonically active zone known for frequent and intense seismic activity.
2. What is the Ring of Fire and why is it important?
The Ring of Fire is a horseshoe-shaped belt surrounding the Pacific Ocean that includes countries such as Russia, Japan, Indonesia, the Philippines, Chile, and the United States. It accounts for nearly 80% of the world’s largest earthquakes and hosts numerous active volcanoes due to constant subduction and tectonic movement.
3. Why is the Kamchatka Peninsula so vulnerable to earthquakes?
The Kamchatka Peninsula lies directly on the boundary of the Pacific Plate, where intense geological forces cause frequent seismic activity. Since 1900, more than 130 earthquakes of magnitude 7 or higher have been recorded in the region, making it one of the most active zones on Earth.
4. How does a subduction zone produce earthquakes?
A subduction zone forms when a denser tectonic plate slides beneath a lighter one. Over time, stress builds up at the interface between the plates. When this stress is suddenly released, it triggers an earthquake. If the release occurs beneath or near the ocean, it can also generate powerful tsunamis.
5. What was the damage caused by the recent Kamchatka quake?
The July 2025 Kamchatka earthquake triggered sea waves of 3–4 metres along coastal areas, causing flooding, road damage, and temporary displacement of residents. While human casualties were relatively low, infrastructure and property suffered significant damage, prompting widespread tsunami warnings.
6. Which other recent earthquakes are among the strongest?
Some of the most powerful earthquakes in recent history include:
- Tohoku, Japan (2011) – Magnitude 9.1
- Maule, Chile (2010) – Magnitude 8.8
- Sumatra, Indonesia (2012) – Magnitude 8.6
- Kamchatka, Russia (2025) – Magnitude 8.8
7. How do earthquakes in the Ring of Fire compare with others globally?
The Ring of Fire experiences the majority of high-magnitude earthquakes worldwide. Other active regions include the Himalayan belt, the Mid-Atlantic Ridge, and parts of Central Asia and Turkey. However, the Pacific region remains the most densely populated and seismically volatile area.
8. Why don’t all high-magnitude quakes cause heavy destruction?
The impact of an earthquake depends on factors such as population density, infrastructure strength, depth of the quake, and distance from the epicentre. For instance, remote areas like Kamchatka may experience strong tremors but limited human casualties due to sparse habitation.
9. What lessons can India draw from such seismic zones?
India lies near the Himalayan seismic belt, where the Indian Plate collides with the Eurasian Plate. To minimise future risks, India must focus on fault-line monitoring, enforcing strict building codes, and strengthening emergency response systems to enhance earthquake preparedness.