Volcano Watch: Using earthquakes to look under the hood at Pahala

  • USGS graphic Map comparing two months of earthquake activity in the region deep beneath Pahala from (a) March 1, 2014, to May 1, 2014, and (b) March 1, 2022, to May 1, 2022. Earthquake locations are marked by circles that are colored by depth; blue circles indicate earthquakes that occurred 20–40 km (12–25 miles) below sea level.

Deep beneath Pahala, a town located in the southern part of the Island of Hawaii, is currently the most seismically active region of the Hawaiian Islands. Frequent, deep earthquakes (greater than 20 km or 12 miles below sea level) are felt regularly by local residents, and, occasionally, people across the entire island.