PORT-AU-PRINCE, HAITI — Seismologists are sounding the alarm over a noticeable uptick in moderate earthquake activity across Haiti in recent months. A minor tremor shook the country on Monday, August 4, near the border between Pétion-Ville and Ganthier, prompting concern among residents and seismic experts alike.
According to engineer Claude Prepti, Director of the Bureau of Mines and Energy (BME), this tremor stemmed from movement along a fault line that stretches across the island shared by Haiti and the Dominican Republic. The event caused widespread panic in several neighborhoods, with residents of Pétion-Ville, Delmas, and Canapé-Vert fleeing into the streets in fear.
Overnight Seismic Swarm Alarms Residents
In total, five seismic events were recorded overnight. The most powerful quake registered a magnitude of 4.0 on the Richter scale around 11 p.m., followed by a 3.4-magnitude tremor at approximately 3 a.m. Between these two stronger quakes, at least three smaller aftershocks were detected.
Preliminary data from the BME indicates that the epicenter was shallow—only about 5 kilometers deep—located along the extension of the Rivière Froide fault line, which traverses Laboule 12, Fonds Parisien, and Ganthier, continuing toward Enriquillo.
Director Prepti expressed particular concern about seismic activity near Pétion-Ville due to its high population density and the influx of internally displaced people taking refuge in the area. He warned that a major earthquake in this region could have devastating consequences.
Increased Activity Across the Caribbean Plate
The same fault line also registered a significant tremor in the Dominican Republic that same night. A 5.7-magnitude earthquake struck Punta Cana around 4 a.m., while two additional low-magnitude tremors were recorded in Puerto Rico.
Prepti emphasized that these occurrences point to a broader increase in tectonic activity on the Caribbean plate. “This is not surprising,” he said, “since the Caribbean plate is one of the most seismically active regions, registering at least two small earthquakes per day.”
A separate minor quake was recorded in Haiti’s Nippes Department early this morning. Though not directly related to the activity around Pétion-Ville, it forms part of a broader pattern of low-intensity tremors in that area.
Dozens of Quakes Recorded in Recent Months
The BME’s technical seismology unit documented over 60 minor earthquakes across Haiti in May 2025. That number dropped slightly to 39 in June and 42 in July. Despite these fluctuations, scientists emphasize that earthquakes remain fundamentally unpredictable, and monthly statistics offer little clarity on future events.
Importantly, none of these recent tremors have exceeded a magnitude of 3.8, meaning that most have been too weak to cause significant damage. Still, Prepti warns that moderate earthquakes—those measuring 5.0 or higher—could potentially impact infrastructure and endanger lives.
Haiti lies atop two major fault systems: the Southern Peninsula Fault and the Septentrional Fault. The latter, being longer, is capable of storing greater amounts of energy and was responsible for the catastrophic 1842 earthquake that reached a magnitude of 8.0. Prepti cautions that a quake of similar intensity could occur again in the future. As for the Southern Fault, it could produce quakes up to magnitude 7.0.
Public Safety Advisory for the Haitian People
Given the growing frequency of seismic activity across the country, The Midtown Times urges all residents of Haiti to prepare for potential earthquakes by taking the following precautions:
1. Stay Informed
- Follow official updates from the Bureau of Mines and Energy and Civil Protection agencies.
- Use mobile apps or radio stations that provide real-time alerts.
2. Create an Emergency Plan
- Identify safe spots in your home (under sturdy tables, away from windows).
- Establish a family communication plan.
- Know your community’s evacuation routes and emergency shelters.
3. Prepare an Emergency Kit
- Include water, non-perishable food, flashlight, batteries, first aid supplies, medication, important documents, and face masks.
4. Reinforce Your Home
- Where possible, strengthen your home’s structure to make it more resistant to tremors.
- Avoid sleeping next to unstable walls or heavy furniture.
5. Participate in Community Drills
- Schools, churches, and local organizations should conduct regular earthquake drills to raise awareness and improve response readiness.
6. Don’t Panic During Tremors
- If indoors, “drop, cover, and hold on.”
- If outdoors, move away from buildings, trees, and power lines.
7. Report Damages and Stay Cautious After a Quake
- Be wary of aftershocks.
- Report damaged infrastructure to local authorities to avoid accidents.
As seismic activity intensifies across the region, vigilance and preparation are key. Haiti’s long seismic history demands a proactive approach from citizens, communities, and authorities alike.
