A tsunami advisory was issued for parts of the Alaskan coastline Monday afternoon after a 7.5 magnitude earthquake struck the region.
Centered about 60 miles off the sparsely populated Aleutian Peninsula of Alaska, the quake struck just after lunchtime on Monday.
While there were no immediate reports of damage, a tsunami warning that was in place for much of the peninsula was downgraded to an advisory later in the day. The National Tsunami Warning Center lifted a tsunami advisory Monday evening.
A tsunami advisory is issued when a tsunami with the potential to generate strong currents or waves dangerous to those in or very near the water is imminent, expected, or occurring.
The earthquake follows a 7.8 quake that struck the same region in July. That quake remains the strongest recorded globally so far this year.
According the USGS, earthquakes of this magnitude are uncommon, occurring just a few times per year on average.