After the Quakes:
Disease Outbreak Risks in Venezuela 2026

On June 24, 2026 at 6:04 PM local time, a magnitude 7.2 earthquake struck near Yumare, in the state of Yaracuy in northern Venezuela. Thirty-nine seconds later, a magnitude 7.5 mainshock hit the same area. Two earthquakes, less than a minute apart — the largest seismic event to strike Venezuela since 1900.

The immediate destruction is catastrophic. Buildings collapsed across the Greater Caracas area and the state of La Guaira. As of June 26, 2026, at least 920 people have been confirmed dead, more than 4,500 injured, and over 50,000 remain unaccounted for — a figure that reflects both the scale of destruction and the significant communications disruptions that have hampered reporting from affected areas.

But in public health, we know that the earthquake itself is not the end of the crisis. It is the beginning of a second one.

Why Earthquakes Create Disease Risk

Earthquakes destroy the infrastructure that keeps populations healthy simultaneously and without warning. Water treatment and distribution systems fracture. Sewage lines rupture, mixing with drinking water supplies. Hospitals collapse or lose power. Roads become impassable, severing supply chains for medicines and food. Tens of thousands of people move into crowded temporary shelters with inadequate sanitation.

These conditions — contaminated water, poor sanitation, overcrowding, disrupted healthcare, and weakened immune systems — are the precise set of factors that enable infectious diseases to spread rapidly through a population.

The Five Biggest Disease Risks

The International Response

The international response to Venezuela's earthquake has been substantial and rapid, in part because the disaster struck the country's most densely populated urban corridor — and because the scale of destruction was immediately visible to the world.

The challenges, however, are significant. Venezuela has one of the most restricted media environments in the world, which has complicated both damage assessment and disease surveillance. At least 200 websites including local and international news sources were blocked at the time of the earthquakes, and communication infrastructure in the hardest-hit areas was severely disrupted.

Additionally, at least 138 aftershocks have followed the initial doublet. The USGS estimates a 40% probability of a magnitude 6 or larger aftershock in the coming week — which means rescue and relief efforts are being conducted in an ongoing seismic environment that puts responders themselves at risk.

What Can Prevent These Outbreaks

The evidence from previous earthquake responses is clear: these disease outbreaks are preventable — but prevention requires sustained, coordinated action that extends well beyond the initial rescue phase.

The priorities are well-established. Clean drinking water and water purification kits must reach displaced populations within the first 72 hours. Sanitation facilities — latrines, handwashing stations — must be established at every shelter site before fecal-oral transmission pathways are established. Rapid disease surveillance systems must be activated so that the first cases of cholera, leptospirosis, or measles are identified before they become outbreaks. Targeted vaccination campaigns for measles and hepatitis A must reach the most crowded displacement sites. And medical supply chains — oral rehydration salts, antibiotics, wound care materials, oxygen — must reach field hospitals consistently, not just in the first days.

How You Can Help

The organizations below are actively responding to Venezuela's earthquake. All have four-star ratings on Charity Navigator — the highest level of transparency and accountability. All accept international credit card and PayPal payments.