World Spectator: San Francisco Bay Area In Earthquakes Shake Day Earthquake Readiness

San Francisco Bay Area In Earthquakes Shake Day Earthquake Readiness:A pair of 20 Oct earthquake in San Francisco Bay area is that area of the country a few trembling, though less because of their size, which was "relatively" small, but more because of their proximinity---not in place, but in terms of dates.

New "San Francisco earthquake", which they have already been named despite the fact that they were centered in the Eastern Bay of the San Francisco Bay Area, were small. The first earthquake hit at 2: 41 PM near Berkeley. Geological Survey (USGS) service of the United States said that the magnitude of 4.0-quake. There were reports of shaking, but there were no reports of damage.

Later in the evening, the United States Geological Survey initially reported that the magnitude 4.2 quake had hit near Berkeley at about 8: 3:0 pm, but it was quickly downgraded to 3.9. Both are earthquakes occurred on the Hayward fault, which runs through the East Bay, and which many experts believe will be a place for the next big earthquake in San Francisco.

Ironically, two San Francisco earthquake "occurred on the day that millions of people participated in the California earthquakes G6 readiness exercises.

In the Bay Area was a few days earlier, remembered the anniversary of the Loma Prieta earthquake of 22. This earthquake was really close to the Centre of Santa Cruz than San Francisco.

Loma Prieta earthquake occurred October 17, 1989, 6.9 magnitude rocking the San Francisco Bay area, killing 63 people, injured more than 3.757 and leaving thousands homeless.

Comparisons between the sets of earthquakes magnitude scale is now being used by the time and the Richter scale, an increase of one step on the base-10 logarithmic scale corresponds to 10 ** ≈ 1.5 32 times more energy and an increase of two step corresponds to 10 ** 3 = 1000 times increase in energy.

Part of Interstate 8800 collapsed (structure of Cypress, shown above), and section Bridge Bay upper deck collapsed on the lower deck. Marina saw the fires and earthquakes was broadcast live on national television, as she interrupted preparations for game three of world series between San Francisco and Oakland as well