Rare Double Earthquake in Venezuela Causes Devastating Building Damage
Venezuela was hit by two strong earthquakes just 39 seconds apart on June 24, causing severe building damage and complicating rescue efforts. The seismic doublet is a rare phenomenon.
A Rare Seismic Doublet
On June 24, Venezuela experienced a rare seismic phenomenon: two major earthquakes within 39 seconds. The first was magnitude 7.2, the second 7.5. Both occurred at a shallow depth of 10–20 km, amplifying the surface impact, with tremors felt in Colombia, northern Brazil, and several Caribbean islands.
Why the Buildings Were So Damaged
The double quake is linked to the parallel movement of the Caribbean and South American plates. The first tremor already weakened many structures. Because the second hit immediately, there was no time for inspections or repairs. "The building no longer performs as intended," explains Alan Damián Sánchez Pulido, a civil engineer at Mexico's Ibero-American University.
Different Damage on the Same Street
Not all buildings suffered equally. Pulido notes that each building has a natural vibration frequency. If it matches the earthquake energy, resonance amplifies movement. Soil type also matters: Venezuelan building codes lack the detail of countries like Mexico. This variation explains why some buildings crumbled while others remained standing.
Rescue and International Aid
Residents like Verónica Cañas are forced out of damaged homes, waiting for Civil Protection assessments. There is a shortage of medical supplies and rescue tools. The US pledged $150 million in aid, Mexico sent 250 search-and-rescue personnel with equipment, and Spain dispatched Military Emergency Unit teams. Citizens also set up digital platforms to find missing people.
Building a Culture of Prevention
Engineer Pulido stresses the need for prevention: "We only worry about an earthquake after it happens. The important thing is to know how to react." Community efforts include delivering aid and organizing volunteer teams.
