Scientists are installing multiple temporary seismic monitoring stations to get a better understanding of the sharp increase in earthquakes recorded at Mount Adams.

The quakes are unusual for the volcano, where only one earthquake is typically recorded every two to three years.

Six low-intensity earthquakes rumbled beneath Mount Adams during September, according to the U.S. Geological Survey Cascades Volcano Observatory. That’s an unusual amount of seismic activity at the 12,

Washington’s Mount Adams has seen some pretty unusual activity as of late, the US Geological Survey (USGS) has announced. Rather than the usual one earthquake every two to three years, six occurred in the area in September alone.