Seismicity of the United States, 1568-1989 (revised)

100 KILOMETERS aftershocks aftershocks occurred Alaska Aleutian Islands America Bulletin Andreanof Islands brick BRK Felt buildings Calif California City cracks formed damage occurred Date Yr Mo definitions of magnitude Depth Ref USGS dishes earthquake earthquake caused east epicenter fault foreshock Hawaii houses Humboldt County hypocenter and intensity indicates information intensity references Island July Kern County km² knocked Lake land area landslides Longitude Depth Ref Magnitude Other Intensity magnitude source codes main shock Mendocino County Mfa BAR minor damage Monterey County Nevada northeast northwest Origin time UTC plaster cracked plaster fell property damage quake Ref Felt area references and table reported San Benito County San Bernardino County Seismological Society Sept Slight damage Society of America Sonoma County southeast southern southwest towns U.S. Geological Survey Utah Valley walls were cracked windows were broken