3.6 quake rattles ocean floor; 4.0 Easter quake aftershock hits East County

A pair of earthquakes shook either end of San Diego County on Thursday morning.

First, a magnitude-3.6 earthquake struck the ocean floor southwest of the spot where the U.S.-Mexico border runs into the Pacific Ocean, according to automated seismographs and computers operated by the U.S. Geological Survey.

The 8:11 a.m. subsea quake was centered 25 miles south-southwest of Rosarito Beach, according to the USGS data. That’s about 38 miles southwest of downtown Tijuana and about 50 miles southwest of San Diego.

At 10:07, a 4.0-magnitude temblor rattled the Imperial Valley and eastern San Diego County. It was an apparent aftershock to the magnitude-7.2 earthquake that struck April 2, killing two people in Mexicali and causing hundreds of millions dollars damage in Imperial County.

The late-morning shaker was centered six miles south-southeast of Ocotillo, on the San Diego-Imperial County line, about 100 miles east of San Diego.

Seismologists have in the past warned that earthquake data about quakes south of the border is not as reliable as U.S. quake data, because the California Integrated Seismic Network does not have equipment in Baja California.

Related posts:

  1. 4.8 quake rattles East County
  2. 3.6-magnitude quake hits off Baja coast
  3. Quake off Baja rattles some in SD
  4. Small quakes rattle area near Calexico
  5. 5.3 quake rattles region, no damage reported in San Diego

Short URL: http://www.delmartimes.net/?p=1689

Posted by on Jun 24, 2010. Filed under Archives. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

Leave a Reply



Bottom Buttons 1

Bottom Buttons 2

Bottom Buttons 3

Bottom Buttons 4

Bottom Buttons 5

Bottom Buttons 6





  • Rancho Santa Fe resident among seven new trustees joining UC San Diego Foundation Board
    Proactive stewards, higher education advocates and expert financial strategists, UC San Diego Foundation trustees play an important role in cultivating community partnerships and garnering resources to support UC San Diego research, teaching and public service initiatives. Trustees govern the Foundation, including managing net assets totaling $717 million, i […]
  • Rancho Fire District to recognize Fire Prevention Week with two events
    National Fire Prevention Week is Oct. 5-11, and the Rancho Santa Fe Fire Protection District (RSFFPD) will host two community events to recognize the annual awareness campaign. The first will be an Open House from 9 a.m. to noon on Saturday, Oct. 4 at RSF Fire Station 2, 16930 Four Gee Road in 4S Ranch. Guests will be able to tour the fire station and traini […]
  • New Rancho Santa Fe Library Branch Manager welcomes community input
    Rancho Santa Fe Library’s new Branch Manager Haley Kwon has been charmed by the village’s “sweet, down-home” character, the simple pleasure of visiting the local library and people’s enjoyment of a slower speed of time. “It’s a small town and the library is a place for people to connect,” Kwon said. “People have a different sense of time here, they come in t […]