Weather Data Source: South Carolina Weather

Low-Magnitude Earthquake Rattles Summerville, SC

A view of Summerville SC with tremor effects indicating an earthquake.

Summerville, SC, August 28, 2025

News Summary

A minor earthquake measuring between 2.2 and 2.4 on the Richter scale shook Summerville, South Carolina, just before 10 a.m. on July 16. The quake’s epicenter was located less than a mile northeast of downtown Summerville. Residents reported feeling weak tremors, with reports extending to distant states like Connecticut and Pennsylvania. This incident emphasizes the importance of earthquake preparedness, as officials reminded residents to take protective measures during seismic activities.

Summerville, SC

A low-magnitude earthquake measuring between 2.2 and 2.4 on the Richter scale rattled Summerville, South Carolina, just before 10 a.m. on July 16. The quake’s epicenter was situated less than a mile northeast of downtown Summerville in Dorchester County, with a depth recorded at approximately 3 to 5 miles. Efforts are currently ongoing to refine this measurement using an array of seismic data.

Residents across a wide geographical area reported feeling tremors, with the sensation extending as far as Connecticut and Pennsylvania. However, most local feedback described the shaking as relatively weak. This was the second earthquake recorded in South Carolina for the month of July 2025, preceding a 2.7 magnitude quake that occurred in Edgefield County on July 5. To date, the state has experienced at least 10 earthquakes so far this year.

Safety Reminders Issued

In light of the earthquake, Dorchester County officials promptly distributed safety reminders to the community. Residents were advised to take immediate protective actions such as dropping to the ground and covering themselves to mitigate risks from falling objects. They were also encouraged to remain indoors during the shaking and to avoid windows and heavy furniture, which could potentially pose hazards.

Understanding South Carolina’s Seismic Activity

South Carolina is recognized for its significant seismic activity, with approximately 70% of its earthquakes occurring in the Coastal Plain region. This geological area is often clustered around three primary zones near Charleston, with particular emphasis on the Middleborough Place-Summerville region. Experts pointed out that the state has a historical precedent for powerful earthquakes, including a notable one in 1886 that had an estimated magnitude of 7.3 and resulted in around $6 million in damages at the time (roughly $170 million in today’s dollars).

The 1886 earthquake, classified as an intraplate earthquake, had a profound impact, affecting regions far beyond its epicenter and extending across much of the eastern United States. In response to this historical context, building codes in the area have evolved significantly to enhance construction resilience against seismic events. Modern designs focus on allowing structures to bend without breaking, aiming to increase safety during potential earthquakes.

Conclusion

While the recent earthquake in Summerville was of low magnitude and mostly felt as weak shaking, it has served as a vital reminder for residents to remain prepared. With the state’s history of seismic activity, local officials continue to emphasize the importance of safety protocols during such natural events.

FAQ

What magnitude was the earthquake in Summerville, SC?

The earthquake in Summerville was measured between 2.2 and 2.4 on the Richter scale.

When did the earthquake occur?

The earthquake occurred just before 10 a.m. on July 16, 2025.

What safety measures should residents take during an earthquake?

Residents should drop and take cover, stay indoors during shaking, and avoid windows and heavy furniture.

Chart of Key Features

Feature Details
Magnitude 2.2 – 2.4
Epicenter Location Less than 1 mile northeast of downtown Summerville
Depth 3 to 5 miles
Recent Earthquakes At least 10 in 2025
Safety Measures Drop, cover, stay indoors, avoid windows

Deeper Dive: News & Info About This Topic

HERE Resources

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Additional Resources

Low-Magnitude Earthquake Rattles Summerville, SC

STAFF HERE CHARLESTON
Author: STAFF HERE CHARLESTON

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