March 19, 2020 update. Like all of you, the Alaska Earthquake Center has quickly reconfigured to adhere to public health guidelines while trying to maintain business and operational continuity.
We are getting questions about current earthquake activity in the western Aleutians—and with good reason. There are actually two different sequences of earthquakes unfolding right now in the Andreanof and Rat Islands.
Seismicity in Alaska had another stand-out year in 2019. With a total of 50,289 reported earthquakes, 2019 finished as a runner up to the record-breaking 2018 (figure 1). The earthquake depths ranged between 0 and 165 miles (265 km).