Kiersten Faulkner, the foundation's executive director, called the sightings "unverified field reports," but some come from National Park Service staff, members of the state Historic Preservation Division, as well as residents from Waimea to Kailua-Kona.

"It's extremely sad," Faulkner said. "The first reaction is gratitude that there was no loss of life. But the next thing is to look at what this has done to our communities and the damage to structures that have been there for decades and hundreds of years. Many, many times these structures can be saved and put back into useful life, often less than the cost to demolish or replace them."

Hulihe'e Palace, a state and national historic landmark in Kailua-Kona, had damage to each of its six rooms, said palace administrator Fanny AuHoy.

"We didn't fare too well," AuHoy said.

Large cracks appeared after Sunday's earthquakes and huge chunks of plaster and molding came loose, AuHoy said.

Falling plaster damaged artifacts such as Queen's Kapiolani's writing desk, AuHoy said.

Princess Ruth's portable writing desk also fell and broke; a koa calabash bowl fell and chipped, AuHoy said.

Two of the six rooms sustained minor damage but four suffered "extensive damage," AuHoy said.

The palace normally welcomes 300 to 500 visitors per day but is closed today and tomorrow until a structural engineer can make an assessment, AuHoy said.

The Historic Hawaii Foundation can provide building owners with resources to assess damage and make cost estimates to repair them, Faulkner said.

In addition to Hulihe'e Palace, the reports include:

i Great Wall of Kuakini Wall in Kailua (heavily damaged and near collapse).

i Sugar Mill Stack in Kohala (collapsed).

i Pu'ukohala Heiau National Historic Park in Kawaihae (damage to the heiau walls and the terraces on all sides).

i John Young Homestead (lost east wall and the entry).

i Mailekini Heiau (lost walls on the north, east and center).

i Older churches in Kohala and Waimea show cracks in walls and ceilings.

i Greenwell Store (minor damage).

To report damage to historic structures, email preservation@historichawaii.org.