Interferogram spanning 2020-2021 and showing uplift west of South Sister
Satellite radar interferogram spanning June 19, 2020, to August 13, 2021, and showing the ground motion in the direction of the satellite. The maximum uplift, indicated by the red color, is about 2.2 centimeters (0.85 inches), and it is located to the west of South Sister. The HUSB continuous GPS site is marked by the large black dot. Earthquakes that occurred during the time period spanned by the interferogram are indicated by small black dots.