Earthquake rattles Highland County early Sunday

A Highland County earthquake struck early Sunday around 5:50 a.m. near Hillsboro, Ohio, the United States Geological Survey reported. 

The quake registered a magnitude of 2.5 on the Richter scale. It originated about 6.4 kilometers below the surface, according to the USGS. 

Residents throughout Highland County and its surroundings felt shaking or heard rumbling as the quake passed. Some reports extended into parts of the Miami Valley and toward the Greater Cincinnati region. 

The U.S. Geological Survey classifies a 2.5 magnitude event as minor, capable of being felt locally but unlikely to cause structural damage or injuries. No injuries, damage, or power outages were reported by local authorities or emergency services following the event. 

Context for Tri-State residents

The Highland County earthquake was centered just northeast of Hillsboro, a small city in southwestern Ohio. Several residents reported feeling brief shaking or hearing a low rumble as the ground moved. In addition, local seismology maps show citizen reports extending as far as Wilmington and Newport, Kentucky. This indicates the quake’s effects reached beyond Highland County. 

Experts note that the region’s geology allows people to feel shallow quakes like this over relatively wide areas in the eastern United States. In the East, seismic waves travel efficiently through rock formations. As a result, residents experience eastern quakes of similar magnitude across distances that would be unusual in the western U.S.

How common are quakes like this?

While most people do not consider Ohio and its surrounding states a high-seismicity region, small tremors have occurred sporadically over the years. The state’s history includes occasional minor quakes. In addition, eastern U.S. geology allows residents to feel these events across broader areas.

According to USGS historical data, quakes of 2.0–3.0 magnitude happen routinely in parts of Ohio and nearby regions, though many go unnoticed without instruments. The USGS recorded a similar small quake in Springboro near Greater Cincinnati in 2025. However, it registered with minimal surface impact.

Seismologists encourage residents who felt the shaking to submit reports through the USGS “Did You Feel It?” system to help scientists better map and understand local seismic activity.

Local reaction and preparedness

On social media, some Tri-State residents reported feeling the quake as a brief jolt or vibration, while others said they were asleep and did not notice it. Experiences varied widely even within communities near the epicenter. 

Emergency management officials say minor quakes rarely pose threats, but they remind residents of general preparedness tips. These include securing heavy furniture, knowing safe spots in homes during shaking, and having an updated emergency plan. 

This Highland County earthquake highlights that even regions with low seismic risk can experience earth tremors. While unlikely to cause damage, being aware of seismic activity supports community safety. It also improves understanding of natural hazards.

Seismic risk in the Cincinnati region

• Low to moderate earthquake risk: Cincinnati and much of Ohio are not in a high-risk seismic zone like California or the Pacific Northwest, but earthquakes do occur in the eastern and central U.S. because seismic waves travel efficiently through older, cooler crust. Small quakes have been recorded in Ohio and nearby states, and major historical events (like the New Madrid seismic zone quakes of 1811–1812) were felt across the eastern states.  
• Cincinnati is relatively distant from major fault lines, and experts generally describe the probability of a significantquake directly beneath the city as low compared with active plate boundary regions.  

Official preparedness and planning

• City emergency planning includes earthquake scenarios. The Cincinnati Health Department’s Emergency Preparedness Division lists earthquakes among the natural disasters the city prepares for, alongside weather, floods, and other emergencies. This division works with local, state, and federal partners to coordinate plans, drills, and mitigation strategies.  
• Participation in regional drills: Ohio participates in the Great Central U.S. ShakeOut, an annual earthquake preparedness drill that encourages individuals and organizations to practice “Drop, Cover, and Hold On,” review emergency plans, and update supplies. This helps both residents and responders stay ready, even in lower-risk states.  

Building and infrastructure readiness

• Building codes reflect seismic risk: Unlike in high-risk states (e.g., California), Ohio’s building codes are not designed for frequent, large earthquakes — because major quakes are rare. However, where Ohio’s seismic design categories require it, engineers assess risk during construction or renovation.
• Older structures may not be retrofitted: Many buildings in Cincinnati were built before modern seismic considerations, meaning they might not perform as well in a larger quake. This is typical for regions with low seismic expectations, but it’s an area where preparedness (e.g., securing heavy furniture, retrofitting masonry) can improve safety.

Public awareness and individual preparedness

• Public information exists, but awareness varies: Ohio EMA and national agencies like FEMA offer guidance on earthquake preparedness. Common recommendations include:

• Develop a family emergency plan
• Build a disaster supply kit
• Learn shelter-in-place and safety procedures like “Drop, Cover, and Hold On”  

• Earthquake insurance is optional: Standard homeowners insurance typically doesn’t cover earthquake damage, so homeowners in Cincinnati can choose additional earthquake coverage if they want that financial protection.