- is warned tremors are caused by huge chamber of unstable magma underground A small town in Hawaii that experiences an astonishing 600 earthquakes a week is being rocked by a concentrated pool of magma directly beneath it, a study has found.
The number of earthquakes recorded in Pahala, a town in the south of the Big Island of Hawaii, has increased 70-fold since 2015, and seismologists have used modern imaging techniques to attribute the sharp rise to a web of magma connected to a nearby volcano.
Pahala is a small town that had a population of around 1,500 at the time of the 2020 census and was once a home to a sugar plantation. According to the United States Geological Survey it is the 'most seismically active area' in Hawaii.