HILO, Hawaii — A magnitude 5.2 earthquake struck off the coast of Hawaii's Big Island Monday evening beneath an undersea volcano, part of unrest that began this past Sunday, according to the USGS. There are no reports of damage on the Big Island, although shaking was felt in Hilo. The earthquake was centered beneath the Kamaʻehuakanaloa undersea volcano, formerly known as the Lo'ihi Seamount, and was associated with volcanic unrest rather than tectonic activity, the USGS said. HAWAII'S UNDERWATER VOLCANO ROCKED BY DOZENS OF EARTHQUAKESKama‘ehuakanaloa is about 19 miles off the Big Island and its peak is about 0.6 miles below sea level. This magnitude 5.2 quake is not expected to impact the Kilauea or Mauna Loa volcanoes on the Big Island, although the USGS warned that aftershocks are possible in the coming days.