Recent back-to-back major earthquakes near Venezuela, paired with a separate seismic event between Trinidad and Tobago and Grenada, have sparked widespread public concern across the Caribbean. Leading regional seismic monitoring body, the University of the West Indies Seismic Research Centre (UWI-SRC) — tasked with tracking earthquakes, volcanoes and tsunamis across the English-speaking Eastern Caribbean — has released a detailed technical analysis to address growing public questions about the seismic activity.
According to UWI-SRC Director Dr. Erouscilla P. Joseph, the large energy released by Venezuela’s magnitude 7.5 and 7.2 earthquakes has altered stress across the entire Caribbean Plate, which has coincided with a small uptick in regional seismic events recorded by the centre. While all seismic activity in the area falls within the broad Caribbean-South American plate boundary, Dr. Joseph emphasized that the Venezuela quakes and the separate Grenada-Trinidad and Tobago event stem from distinct tectonic processes. As of current assessments, there is no evidence linking all three events to a single shared fault system. Though large quakes can shift stress in surrounding regions, she noted, establishing a direct causal link between separate seismic events remains extremely challenging.
Dr. Joseph contextualized the size of the Venezuela earthquakes: a magnitude 7.5 event qualifies as a major quake with regional significance, but tremors of this scale occur somewhere across the globe nearly every year. While the 2025 Venezuela event ranks among the larger quakes recorded worldwide this year, it does not fall among the most powerful seismic events of the past decade. What makes this sequence unusual, she explained, is its location near heavily populated areas and the extremely close timing of the two major quakes: the magnitude 7.2 tremor was followed just 39 seconds later by the 7.5 event. This pattern is rare, she noted, but not unprecedented — it points to a complex rupture process involving multiple fault segments that released massive amounts of stress over just one minute. Preliminary mapping confirms the quakes occurred within the active Caribbean-South American plate boundary, home to major fault systems including the El Pilar–San Sebastián fault and its associated offshore structures. Detailed investigations are still ongoing to pinpoint the exact fault segment responsible for the rupture.
In addressing public anxiety about increased major earthquake risk for Trinidad and Tobago, Dr. Joseph confirmed that aftershocks are expected near the original Venezuela quake zone, and some of these aftershocks may be felt in parts of Trinidad and Tobago. However, she stressed that there is currently no data to support an elevated risk of a major local quake directly triggered by the Venezuela events. “The public should not be alarmed, but they should be prepared,” Dr. Joseph said, noting that all Caribbean nations sit in a geologically active seismic zone, and major events like this serve as a critical reminder of the need for ongoing readiness.
Shortly after the earthquakes, a regional tsunami warning was issued, but it was quickly canceled after specialists analyzed data from coastal monitoring stations and deep-ocean tsunami detection systems. Assessments found no evidence of a significant tsunami forming, with forecasted wave heights remaining far below dangerous thresholds.
Currently, UWI-SRC researchers are conducting a full post-event analysis, examining the quake’s source characteristics, rupture sequence, aftershock distribution, ground shaking patterns, and potential seafloor displacement. Data from regional seismic stations, GPS networks and sea-level sensors is being integrated to refine future regional seismic hazard assessments.
Dr. Joseph also outlined what a similar magnitude earthquake near Trinidad and Tobago would mean: the level of damage would depend on multiple factors, including the quake’s depth, distance from population centers, local soil conditions, and the resilience of local infrastructure. Older buildings constructed without modern seismic engineering standards face far higher risk of damage than newer, code-compliant structures, and a strong local quake could disrupt critical services including power, water and transportation networks. For this reason, Dr. Joseph emphasized, continuous investment in updated building codes and public preparedness remains a priority for the region.
Responding to viral social media videos showing people running outdoors during the Venezuela quake’s intense shaking, Dr. Joseph noted that flight instinct is natural during a terrifying event, but moving while the ground is shaking greatly increases the risk of injury from falling debris, broken glass or collapsing building parts. The internationally recommended safety protocol, she reminded the public, is to Drop, Cover and Hold On until shaking stops. Once the ground stabilizes, people can calmly evacuate to open, safe areas away from damaged structures if necessary.
UWI-SRC is urging all members of the public across the Eastern Caribbean to use this event as an opportunity to update their emergency preparedness: this includes learning and practicing earthquake safety protocols, identifying safe spots in homes and workplaces, securing heavy furniture and appliances that could topple, assembling emergency supply kits, and reviewing family evacuation and communication plans.
“It is natural to feel concerned when a major earthquake affects a neighboring country with which we share such close ties,” Dr. Joseph said. “The SRC remains fully committed to monitoring seismic activity across the region and delivering timely, accurate information to help individuals, communities and governments make informed decisions.”
She added, “This earthquake is a reminder that while we cannot prevent earthquakes, we can drastically reduce their impacts through preparedness. The goal is not to live in fear, but to be ready.”
UWI-SRC maintains continuous 24/7 monitoring of seismic activity across the Eastern Caribbean, and publishes real-time updates via its official website and social media channels including Facebook, Instagram and X (formerly Twitter). The centre encourages all residents to follow these official channels for accurate information and to update their preparedness plans in light of the recent event.