Earthquakes Continue in California: What Should Residents Prepare For? - ForumDaily
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Earthquakes continue in California: what should residents prepare for

An 4,3 magnitude earthquake occurred in eastern San Francisco's Bay Area July 16 in 13: 11.

Фото: Depositphotos

Four minutes after him near Ridzhkrest, where at the beginning of this month were already recorded for a powerful earthquake, an earthquake of 4,5 points occurred, writes USA Today.

And then, in 13: 24, another push was recorded in the Bay Area, this time with a magnitude 3,2 centered near Black Hawk.

This series of earthquakes at intervals of a few minutes scared the locals, causing fears that it would be followed by a large destructive earthquake. However, seismologists advise not to panic.

“This particular sequence of earthquakes does not indicate that a large earthquake is coming,” said Rafael Abreu, a geophysicist at the USGS National Earthquake Information Center in Colorado.

On the subject: 10 strongest earthquake in California history

There were no reports of property damage or injuries after any of the earthquakes that occurred on Tuesday.

However, experts say that the tremors near Blackhawk on July 16 were not aftershocks of the strong earthquake on July 5 that occurred near Ridgecrest. They occurred near various fault lines. Between their centers there are about 270 miles (435 km).

According to the US Geological Survey (USGS) maps, the Ridgecrest earthquake occurred in the Little Lake fault zone. And the earthquakes near Blackhawk belong to the Greenville Fault Zone. Both of them have sliding speeds from 1 to 5 mm per year.

For comparison, the San Andreas Fracture, which serves as the tectonic boundary between the North American and Pacific plates, moves more than 5 mm per year. The average time between major earthquakes along San Andreas has already passed, so some experts believe that California residents should expect a major earthquake.

On the subject: What happens if strong earthquakes hit Los Angeles and San Francisco

According to the USGS, such seismic activity in the region is normal.

“We have earthquakes occurring exactly where, from a geographic perspective, we would expect those earthquakes to occur,” Abreu said. “And the number of earthquakes is consistent with what we expect to see.”

In terms of strength and number of earthquakes, Abreu said that the series of shocks in Ridgecrest had actually stopped faster than expected, but this is also not unusual from a geological point of view.

On Tuesday, four other earthquakes of 3,5 magnitude also occurred in the Ridzhkrest region: one early in the morning, one during the day and two at night.

According to the USGS, over the next week in Northern California, the probability of one or more earthquakes with a magnitude greater than 4,3 is 4%. Small earthquakes are also possible near Blackhawk.

For Ridgecrest, the US Geological Survey last updated its data on Monday. Since July 5, geophysicists have recorded 524 earthquakes of magnitude 3 points or above and 5 shocks of magnitudes 5 points or above.

As ForumDaily wrote earlier:

  • Fourth of July in Southern California were recorded bumps magnitude 6,6. The epicenter was located in 18 kilometers northeast of the city of Ridzhkrest, the center was located at a depth of 8,7 kilometers.
  • On July 5, hundreds of weaker aftershocks were observed in Southern California - aftershock. The power of most aftershocks ranged from 2 to 3 points, some from 3 to 4 points.
  • It turned out that the early warning system, launched at the beginning of this year as part of a pilot program, didn't warn Los Angeles residents about the strong earthquake.
  • July 5 evening in southern California 7,1 magnitude earthquake hit, the most powerful of the last 20 years. The aftershocks were recorded at 20: 19 local time. The epicenter of the earthquake was located in 193 kilometers north of Los Angeles, its center was located at a depth of ten kilometers.
  • Fire, destruction, injury - such were the effects of the second per day powerful earthquake in california.

Read also on ForumDaily:

Southern California residents warned of earthquake fraud

To 30 Thousands of aftershocks: aftershocks after earthquakes in California will last for several months

Miscellanea In the U.S. California earthquake
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