Today in Earthquake History

Today's Earthquake Fact:
The term seismic seiche was first coined by Anders Kvale in 1955, to describe oscillation of lake levels in Norway and England caused by the Assam earthquake of August, 1950.

Year at a Glance

September

Note: All earthquake dates are UTC, not local time.

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Year	Location	Magnitude	Comment

1907	Norwich, England	1907	Sir Edward Bullard born.

1985	Near Coast of Guerrero, Mexico	7.6	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.

1993	Oregon	6.0	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.

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