"Alaskan and Colorado Earthquakes Highlight Regional Seismic Activity in the US"

In the past week, earthquake activity in the United States has drawn attention, particularly in Alaska and Colorado. According to Fox Weather, on Friday, June 13, a magnitude 4.2 earthquake struck southern Alaska near the remote community of Port Alsworth. The United States Geological Survey reported that the quake occurred at 11:17 a.m. local time, with the epicenter located approximately 31 miles east of Port Alsworth and nearly 100 miles underground. Shaking was reported throughout the Cook Inlet region and felt as far away as Anchorage, which is about 165 miles from the epicenter. Port Alsworth is known for being isolated, lacking road connections and standard amenities. No major damage or injuries have been reported, but the event is a reminder of Alaska’s frequent seismic activity, as it sits along the geologically active Pacific Ring of Fire.

Further south, Colorado experienced a smaller but notable earthquake. The Coloradoan detailed that on June 13, a magnitude 2.9 quake struck near the town of Dacono, with tremors felt as far as the Denver area. While Colorado does not frequently experience strong earthquakes, this event prompted discussion about regional seismic risk. Experts have noted that quakes in Colorado are typically minor and not unexpected, often related to natural tectonic movement or, occasionally, human activity such as mining or fluid injection.

Beyond the United States, moderate seismic activity has continued worldwide. According to Volcano Discovery’s earthquake report for June 14, a magnitude 4.7 earthquake was recorded 34 miles northwest of Central, Alaska, indicating ongoing activity in the region. Globally, the United States Geological Survey’s list of significant events highlighted several moderate earthquakes, but no large-scale, high-casualty events have occurred in the past week. The pattern of seismicity so far in 2025 shows fewer high-magnitude earthquakes compared to previous years, with only five events of magnitude 7.0 or higher reported worldwide, as tracked by Wikipedia’s list of 2025 earthquakes.

While seismic experts caution that earthquake clusters can sometimes foreshadow larger events, the current data from both the USGS and recent news reports suggest that the United States is experiencing typical seismic patterns for this time of year. The continuous monitoring and research by agencies such as the USGS help increase preparedness and public awareness, particularly in high-risk areas such as California and Alaska, where tectonic boundaries are most active.