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Today in Earthquake History

Today in Earthquake History

Today's Earthquake Fact:
A seiche (pronounced SAYSH) is "an internal wave oscillating in a body of water" or, in other words, it is the sloshing of the water in any body of water, caused by the ground shaking in an earthquake. It may continue for a few moments or hours, long after the generating force is gone. A seiche can also be caused by wind or tides.

April   25

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


Year Location Magnitude Comment
1957 Near the south coast of Turkey

Epicenter
7.1 Fifteen killed at Fethiye. Many injured and extensive property damage throughout southeastern Turkey and the Island of Rhodes. Also felt on Cyprus, Dodecanese Islands, and in Egypt, Israel, and Lebenon.
From United States Earthquakes.
1966 Tashkent, Uzbekistan

Epicenter
5.0 Local time: April 26.
At Tashkent, 10 were killed, 1,000 were injured, and about 100,000 were left homeless. 28,000 buildings were destroyed, including 200 hospitals and clinics, and 180 schools, in the Old Quarter of Tashkent, the principal damage area. Thousands of the ancient, one-story adobe dwellings were flattened. Additional damage was sustained from the hundreds of aftershocks which followed.
Abridged from United States Earthquakes, 1966.
1989 Near Coast of Guerrero, Mexico

Epicenter
7.1 20th Anniversary

Three people killed, a few injured and some damage at Mexico City. Minor damage reported in the Acapulco area. Felt strongly in much of southern Mexico and as far away as Guadalajara.
From Significant Earthquakes of the World, 1989.

1992 Cape Mendocino, California

Epicenter
7.2 Ninety-eight people injured and considerable damage in southwestern Humboldt County. Preliminary estimate of damage in this area from the series of earthquakes is 66 million U.S. dollars. Maximum intensities (VIII) at Ferndale, Honeydew, Petrolia, Rio Dell and Scotia; (VII) at Fortuna and Loleta; (VI) at Eureka. Landslides and rockfalls occurred in the Honeydew-Petrolia area. Liquefaction was noted in areas of the Eel and Mattole River Valleys. Felt throughout much of northern California as far south as San Francisco and southeast to Carson City and Reno, Nevada. Also felt in many areas of southern Oregon. Strong-motion records indicate peak horizontal accelerations of 1.3g at Cape Mendocino and 0.69g at Petrolia. A tsunami was generated with maximum wave heights (peak-to-trough) of 1.1 m. at Crescent City, 0.2 m. at Arena Cove and 0.17 m. at Pt. Reyes, California; 0.2 m. at Port Orford, Oregon; 0.15 m. at Kahului and 0.1 m. at Hilo, Hawaii.
One of the Largest Earthquakes in the United States.

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