Historic Earthquakes

Holualoa, Hawaii
1929 October 06 07:51 UTC
Magnitude 6.5

Walls fell and houses were displaced on their foundations at Holualoa. Road fills were cracked and embankments overthrown at the road spurs in North Kona; telephone poles were tipped over throughout North Kona. Water tanks in Kealakekua were burst or thrown off their foundations, and some weak structures collapsed. At Puuwaawaa Ranch, unbraced foundation posts fell over, masonry in the main house basement was partly thrown down, new "avalanches" fell in the gulches of Puuwaawaa hill, boulder fences were generally collapsed, and a chimney stump was broken for the second time. Also felt on Lanai, Maui, and Oahu.

Abridged from Seismicity of the United States, 1568-1989 (Revised), by Carl W. Stover and Jerry L. Coffman, U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, Washington: 1993.