Another aftershock hits U.S.-Mexico border area

08:37, April 23, 2010      

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A moderate aftershock from the magnitude 7.2 Mexican earthquake occurred at 7:22 a.m. (0222 GMT) Thursday near the border town of Seeley in Imperial County, California, the Los Angeles Times reported.

The 4.2 magnitude temblor was felt in the area, according to the U.S. Geological Survey. There were no reports of damage or injuries, the Times reported.

Thousands of aftershocks from the April 4 strong quake, which was the largest in the Baja California-Southern California region in more than a decade, have taken place so far. More than a dozen of them were greater than magnitude 5.0.

The tremor has caused at least 91 million U.S. dollars in damage on the California side of the border, according to Governor Arnold Schwarzenegger.

According to a letter the state sent to the federal government seeking aid, the quake damage in Imperial County includes structural damage to numerous buildings including homes, schools and a hospital; major cracks to the All-American Canal, which provides water for local agriculture, and damage to wastewater and water storage tanks, the newspaper said.

The number of earthquakes greater than magnitude 4.0 in Southern California and Baja California has increased significantly in 2010. There have been 70 such quakes that have been tallied so far this year, the most of any year in the last decade.



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