Today in Earthquake History

Earthquake History for September 21st

  •  M6.0 - Oregon, 1993

    One of the largest historical earthquakes in Oregon.
    The Klamath Falls earthquakes caused two deaths and approximately 7.5 million U.S. dollars in damage. One person was killed when the car he was driving was crushed by a boulder in an earthquake-induced rockfall and another person died of a heart attack. More than 1,000 homes and commercial buildings were damaged. Maximum intensity VII in downtown Klamath Falls and at the Oregon Institute of Technology about three kilometers north of downtown. Three highways leading to Klamath Falls were temporarily closed because of rockfalls or concern about possible damage to bridges. Rockfalls and rockslides occurred in roadcuts and on steep slopes throughout the epicentral region. Ground cracks in fill material were observed at several locations in the area. Felt in southern Oregon as far north as Eugene and in northern California as far south as Redding.
  •  M7.6 - Guerrero, 1985

    Additional casualties and damage (VI) in the Mexico City area. (Main shock on September 19, 1985.) Felt in many parts of central Mexico. Local tsunami recorded at Acapulco with maximum amplitude (peak-to-trough) of 1.4 meters. Water well fluctuations recorded at Santa Fe, New Mexico.
    From Significant Earthquakes of the World, 1985.
  • M - United Kingdom, 1907

    Sir Edward Bullard born.

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