Moderate tremor near Saratoga Springs marks second significant seismic event in two weeks
Utah County residents felt the ground shift beneath them Thursday afternoon when a 3.5 magnitude earthquake struck near several communities, renewing conversations about seismic preparedness in a region that has experienced increased geological activity in recent weeks.
The United States Geological Survey reported the tremor at approximately 12:53 p.m., with its epicenter located near Saratoga Springs, Lehi and Camp Williams. Seismologists measured the quake’s depth at 7.7 kilometers below the surface, placing it in the shallow-to-moderate range that typically produces noticeable shaking across populated areas.
Recent Seismic Activity Raises Questions
Thursday’s earthquake arrives just 14 days after a more powerful 4.7 magnitude tremor struck near the Utah-Wyoming border on Jan. 22. That earlier quake, which occurred shortly before 8 a.m., sent vibrations through communities across northern Utah, catching many residents during their morning routines.
The proximity of these two events—both in timing and location—has prompted residents to question whether the region is entering a period of heightened seismic activity. While geological experts continue analyzing the data, the pattern underscores Utah’s position along the Wasatch Fault, one of the most active seismic zones in the western United States.
Understanding Utah Earthquakes
Seismic activity in Utah County is not unprecedented, but the frequency and intensity of recent tremors have captured public attention. The Wasatch Front, home to approximately 80 percent of Utah’s population, sits atop a fault system capable of producing significant ground-shaking events.
The USGS classifies seismic strength through magnitude measurements, which represent the size of the geological event itself. Unlike intensity, which varies based on location and local conditions, magnitude provides a single, consistent measurement for each tremor.
The magnitude scale operates on a logarithmic system, where each whole number increase represents a tenfold rise in amplitude. According to USGS standards, a moderate event registers at 5.3, while a strong one measures 6.3. Thursday’s 3.5 magnitude tremor falls into the minor-to-light category, typically felt by people but rarely causing significant damage.
Utah Earthquake Safety Protocol
Geological officials emphasize that the period immediately following an earthquake requires careful attention to safety protocols. The shaking that residents experience during the initial tremor represents only the beginning of potential seismic activity.
Aftershocks—smaller earthquakes that follow the main event—can occur minutes, hours, or even days later. Residents should remain prepared to “drop, cover and hold on” if they feel subsequent tremors, regardless of how much time has passed since the original earthquake.
Structural integrity concerns warrant serious attention following any seismic event. Buildings that appear intact from the outside may have sustained internal damage during the shaking. Residents should avoid entering any structures showing visible damage until professional inspections confirm their safety.
Personal safety checks should include both self-assessment and attention to others nearby. Injuries sustained during earthquakes may not be immediately apparent, particularly in the confusion that follows unexpected shaking.
Staying Connected and Prepared
Information access becomes crucial during seismic events, as official reports help residents understand the scope of the earthquake and any ongoing risks. Monitoring reliable news sources provides updates on aftershock possibilities, damage assessments and safety recommendations from emergency management officials.
Utah’s commitment to earthquake preparedness extends beyond reactive measures. The Great Utah ShakeOut, scheduled for April 16, will bring together residents across the state for coordinated earthquake drills. Participants at workplaces, homes and schools will practice the protective measures that could prove lifesaving during a major seismic event.
The statewide drill offers an opportunity for Utah residents to familiarize themselves with earthquake safety procedures in a controlled environment. Registration remains open for individuals and organizations interested in participating in this comprehensive preparedness initiative.
Thursday’s tremor serves as a tangible reminder that Utah County sits in an active seismic zone where earthquakes remain an ever-present possibility. While the 3.5 magnitude event caused no reported damage, it reinforces the importance of preparedness in communities along the Wasatch Front.
As seismologists continue monitoring the region’s geological activity, residents can take proactive steps to ensure their readiness for future earthquakes—whether they arrive as minor tremors or more significant events that test the community’s resilience and preparation.
Source: ABC4 Utah
