188 Dead, Over 1,500 Injured as Powerful Earthquakes Strike Venezuela

Context

Venezuela was struck by two powerful earthquakes of magnitude 7.2 and 7.5, resulting in 188 deaths, more than 1,500 injuries, widespread destruction, and a severe humanitarian crisis.

Key Highlights

• According to the United States Geological Survey (USGS):
  • The two earthquakes occurred within one minute of each other.
  • The epicentres were located near the coastal town of Morón, west of Caracas.
  • The earthquakes originated at shallow depths of 22 km and 10 km, significantly increasing the intensity of ground shaking and surface damage.
    • Shallow-focus earthquakes (depth <70 km) generally cause greater destruction because seismic waves travel a shorter distance before reaching the surface.
• Tremors were felt across Colombia and Brazi.l, highlighting the regional impact of the event.

Impact

• La Guaira State experienced the worst devastation, with numerous buildings collapsing and the area being declared a disaster zone.
• Large-scale rescue operations were launched involving:
  • Venezuelan national disaster response agencies,
  • International search-and-rescue teams,
  • United Nations disaster response specialists.

International Humanitarian Response

• Several countries, including India, the United States, China, Brazil, and Iran, offered humanitarian assistance.
• India expressed solidarity with Venezuela and reaffirmed its readiness to provide all possible support.
• The United Nations Office for the Coordination of Humanitarian Affairs (UNOCHA) mobilised emergency humanitarian assistance.
  • The United Nations described the disaster as requiring massive international cooperation for rescue, relief, and rehabilitation.
• The earthquakes were reported to be the strongest to hit Venezuela in 126 years.

Why is Venezuela Prone to Earthquakes?

Earthquakes occur due to the sudden release of energy along tectonic faults, generating seismic waves.

Venezuela is located along the boundary between the Caribbean Plate and the South American Plate, making it one of the seismically active regions of South America.

Caribbean Plate

The Caribbean Plate is a predominantly oceanic tectonic plate underlying the Caribbean Sea and parts of Central America and northern South America.

Boundaries

• North: North American Plate
• South & East: South American Plate
• West: Cocos Plate
• Southwest: Nazca Plate

Significance

• Relative plate movement creates:
  • Transform faults,
  • Subduction zones,
  • Active volcanic arcs,leading to frequent earthquakes and volcanic activity.

Lesser Antilles Volcanic Arc

• Formed due to the subduction of the Atlantic oceanic lithosphere beneath the Caribbean Plate.
• It is one of the most active volcanic belts in the Caribbean region.

Countries Influenced

• Haiti
• Jamaica
• Dominican Republic
• Trinidad and Tobago
• Venezuela

South American Plate

The South American Plate is a major continental tectonic plate carrying most of the South American continent and part of the Atlantic Ocean floor.

Key Features

• Western Margin
  • Converges with the Nazca Plate.
  • The subduction of the Nazca Plate has formed:
    • The Andes Mountains,
    • Frequent earthquakes,
    • Extensive volcanic activity.
• Northern Margin
  • Interacts with the Caribbean Plate, making northern South America, especially Venezuela, prone to earthquakes.
• Plate Movement
  • Moves generally westward, driven by seafloor spreading at the Mid-Atlantic Ridge.

Quick Facts about Venezuela

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