Twin Earthquakes Devastate Venezuela, A Look at Global Doublet Earthquake Events

Venezuela was recently rocked by two powerful earthquakes that struck almost simultaneously near the capital, Caracas, causing widespread destruction. Interim President Delcy Rodríguez reported that at least 32 people have died and more than 700 were injured. The first quake registered a magnitude of 7.2, followed by a stronger 7.5 magnitude tremor just 39 seconds later, according to the United States Geological Survey (USGS). The USGS warned of potentially extensive damage and high casualties, with initial estimates suggesting the death toll could range between 10,000 and 100,000. Tremors were felt as far away as neighbouring Colombia. The Venezuelan government declared a state of emergency, deploying rescue teams to search for survivors trapped under rubble. The main Maiquetía International Airport near Caracas was closed due to serious damage, and videos on social media showed cracked and collapsed buildings. A tsunami warning was briefly issued for coastal areas of Venezuela, Aruba, and Bonaire before being lifted.

This event is a rare example of a ‘doublet earthquake’, a seismological phenomenon where two significant quakes occur close together in time and location. Such events have been recorded globally over the past three decades. In March 2025, a doublet earthquake struck the Tapanuli Utara region of North Sumatra, Indonesia, with a magnitude 5.5 tremor followed 56 seconds later by a magnitude 5.6 quake, damaging homes in Lobupining village. A much larger event occurred near Samoa and Tonga in 2009, where a magnitude 8.1 quake was followed two minutes later by two magnitude 7.8 subevents, triggering a tsunami. Later that same year, the Vanuatu and Santa Cruz Islands experienced a near-triple event, with two large quakes of magnitude 7.7 and 7.8 occurring within 15 minutes, followed by a magnitude 7.4 aftershock. One of the fastest recorded doublets struck Harnai, Pakistan, in 1997, where a magnitude 7.1 quake was followed just 19 seconds later by a magnitude 6.8 tremor on a separate fault 50 kilometres away.