New Jersey's 2.7 Earthquake Near Me Sparks Seismic Risk Awareness in Tri-State Area

A 2.7-magnitude earthquake hit Hillsdale in northern New Jersey on Tuesday at 12:11 p.m. ET, as confirmed by the US Geological Survey (USGS). The seismic event, considered relatively weak, was felt by residents across Staten Island and southwest Connecticut, with many reporting light or weak shaking sensations to the USGS. The earthquake occurred at a depth of approximately eight miles below the Earth's surface, which contributed to the widespread sensation despite its low intensity.

The geological characteristics of the eastern U.S., specifically the older, denser, and harder rocks compressed by time, influence the travel of seismic energy. These geological conditions make the region more susceptible to transmitting seismic energy effectively over long distances compared to regions with younger geological formations. Hillsdale is located around 25 miles northwest of Manhattan, adding to the possible dissemination path of the seismic waves.

This latest occurrence follows another seismic activity in Bergen County, marking the second in a short span. The tremor is likely linked as an aftershock to the 3.0 magnitude earthquake near Hasbrouck Heights that occurred just days prior. The region has also experienced various tremors throughout the year, with the USGS recording a total of 24 earthquakes in New Jersey in 2025 alone, occurring in clusters around Bergen County, Randolph, and Tewksbury. Particularly in Randolph, six earthquakes were reported in a 24-hour period in July. This heightened activity aligns with previous years when larger quakes, such as a magnitude 4.8 in April 2024 centered in Tewksbury, were recorded, resulting in significant regional impacts.

The propensity for seismic activity in New Jersey is often associated with its well-known Ramapo Fault line, running northeast-southwest in North Jersey. Although the Ramapo Fault does not break the Earth's surface, it affects seismic events in the region. Seismologists emphasize the geological differences between the East and West Coasts, with eastern rocks being particularly efficient at transmitting energy, leading to a more widespread sensation from earthquakes of the same magnitude compared to the west.

The recent tremor on Tuesday, though minor, prompted NYC Emergency Management to monitor potential impacts and collaborate with agency partners for response coordination. The USGS maintains that earthquakes below a magnitude of 3.0 are generally not dangerous or damaging. Indeed, officials reiterated the expectation for aftershocks in the coming weeks due to ongoing seismic activities. Historically, the northeast United States experiences such earthquakes infrequently, with significant impacts observed only occasionally. Geological records indicate that New York City has historically been damaged by notable earthquakes such as those in 1737 and 1884.

As the region grapples with these seismic activities, experts continue to assess the geological factors and preparations needed for potential future events. They highlight the necessity for communities in areas like New Jersey and the Tri-State metro area to be aware of seismic risks and prepared to respond accordingly. The ongoing evaluations aim to enhance public awareness and readiness in a region where the geological conditions render seismic events more perceptible and impactful compared to other parts of the country.