The magnitude-6.0 temblor that shook the Hawaiian islands Friday night caused power outages, major damage to homes and rockslides that temporarily blocked roadways in South Kona, where its epicenter was located.

Read more Wembanyama, Spurs rout Thunder in Game 4 to even series

No injuries were reported but Hawaii County officials received reports Saturday from the Civil Defense Agency that at least 28 houses were damaged, including a post-and-pier home in South Kona that collapsed and is considered unlivable due to extensive damage to its foundation, said Tom Callis, spokesman for the Mayor’s Office.

The American Red Cross is assisting the renters who lived there.

A number of Hawaii Island residents reported seeing their homes sway during what has been dubbed the Honaunau- Napoopoo earthquake, with cabinet doors being thrown open and vases, knickknacks, picture frames and other items crashing to the ground.

Big Isle resident Randy Morris said his daughter’s post-and-pier-type home in Kaohe, South Kona, also fell off its foundation when the earthquake hit at 9:46 p.m. He said a house next door shifted 3 feet.

The home of Morris’ daughter was built by family members and was finished just three months ago. Asia Morris-Silsey, her husband, Cody, and their two young children, Jahnoa, 6, and Jahviah, 4, are staying with Morris for now, and the family has set up a GoFundMe page to help them rebuild.

Morris, a retired police officer and owner of Randy’s Huli Chicken and Ribs in Hilo, was inside his warehouse when the shaking started, causing a few bottles to fall to the floor and “a mess to clean up.”

“It felt like a bomb went off,” he said.

County officials urged residents and business owners across the island to report any damage in order to potentially secure federal funding for assistance. Residents also are being advised to contact their insurance provider and document any damage.

Hawaiian Electric said about 1,000 customers lost power during the earthquake, which also triggered rockslides along Highway 11, Napoopoo Road and Milolii Road that forced temporary road closures. County crews cleared the debris, rocks and boulders — some as large as 5 feet in diameter — and reopened all the roadways by 6 a.m. Saturday.

According to the U.S. Geological Survey’s Hawaiian Volcano Observatory, Friday’s temblor was centered 7 miles south of Honaunau and Napoopoo at a depth of 14 miles below sea level. It had no apparent impact on either Mauna Loa or Kilauea volcanoes, and no tsunami was generated.

Aftershocks could continue for days and even weeks, but will likely diminish, HVO said. There were 21 aftershocks of magnitude 1.5 or larger as of noon Saturday and five that were magnitude 2.5 to 4.0.

Read more County to use eminent domain to widen Puna road

More than 2,600 people from as far away as Kauai and Oahu went to the USGS’s “Did you feel it?” online survey that collects information from those who felt an earthquake and creates maps that show what people experienced and the extent of damage.

Geologist and HVO spokesperson Katie Mullikin said Friday’s event was not related to the thousands of volcanic earthquakes that occur in Hawaii and are directly related to the magma moving within Hawaii island’s volcanoes or erupting at the summits or rift zones.

Rather, she said, it was related to the tectonic faults in the Earth’s crust and upper mantle and, specifically, the weight of the Hawaiian islands on the tectonic plate it sits on.

Such earthquakes, which occur “deep beneath the islands, are the ones that are widely felt across the Hawaiian island chain,” Mullikin explained. “Because it occurs in the Pacific Plate, it transfers more effectively than an earthquake on Kilauea happening on the edifice of the volcano, which is why those earthquakes aren’t more widely felt.”

The last earthquake involving the same kind of mechanism was the magnitude-6.7 earthquake in 2006 in Kiholo Bay in North Kona, which was widely felt along the island chain and damaged structures on Hawaii island and Maui.

Mullikin said there is no way to predict such earthquakes.

Volcanic-related earthquakes, such as the powerful magnitude-6.9 temblor on the south flank of Kilauea in 2018, involve movement of magma or eruptions.

“Volcanoes often give us signs that they’re going to erupt, but earthquakes can happen at any time,” she said.

Find links to file residential or commercial damage reports from Friday’s 6.0-magnitude Honaunau-Napoopoo earthquake on the Hawaii County Civil Defense Agency website or call 808-935-0031.

Read more Shai Gilgeous-Alexander, Nikola Jokic top All-NBA first-team picks