Massive 4.3 Magnitude Earthquake Rocks Los Angeles Reaching Depth of 9 Miles Below Ground

by Matthew Memrick
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An extensive 4.3. magnitude earthquake shook things up in Los Angeles on Friday, and scientists track it to nine miles below the earth.

Most residents likely went back to their weekends with no significant injuries or reported damage. Typically, the City of Angels is hit by five quakes a year. They usually measure between 3.0 and 4.0 on the Richter scale.

According to The Daily Mail, the quake was the second to hit the area in five days. On Monday, a 3.6-magnitude earthquake hit nearby Thousand Oaks.

For perspective, the 1989 Bay Area earthquake was a 6.9-magnitude one. According to Britannia, that quake caused 63 deaths, 3.800 injuries, and an estimated $6 billion in property damage.  

Friday’s Earthquake

Residents felt the tremors close to 8 p.m. on Friday, and reports said the source came from Carson. U.S. Geological Survey website reports pinpointed the original quake point about 21 miles southeast of downtown Los Angeles. The USGS also said the depth of the quake was nine miles deep. 

In a Q&A, the government agency said outward damage to a city does not usually occur until the earthquake magnitude reaches somewhere above 4 or 5 on the scale. It may take weeks to determine where and what damage happened.

Many said they felt a jolt lasting a moment to 10 seconds spread across the Los Angeles area. People in the suburbs of Santa Monica, Torrance, and Beverly Hills also experienced the quake.

Reports of a Carson oil refinery fire were a false alarm. City officials said the fire was a controlled flaring incident.

Emergency Officials Went Into Action

However, L.A. Fire Department officials went into emergency mode.

Vehicles and helicopters began a patrol of 470 square miles, but department officials did not notice anything out of the ordinary.

Seismologists like Lucy Jones felt the quake did not seem to be extraordinary and that it had been a while since the area felt one of that magnitude. Jones also told viewers that many over a large area would feel it over a larger size because of its depth.

Others Shook 

Some, however, felt differently.

“I literally heard it coming. The house was rumbling for a good 10 seconds,” a KTLA Facebook poster said. Another social media comment said the quake was “way bigger than (4.3).”

Don’t be too alarmed, even though preparation plans would be good to go over now and then.

The Big One, or massive earthquake, always seems to come up over these small quakes. That quake happens every 45 to 260 years, according to LAist reported. The last one occurred 161 years ago.

A 2016 CNET report said the San Andreas faultline could rupture once and create an 8.3-magnitude quake. But the website felt comfortable saying that researchers said it would be extremely rare. Think once every 2,500 years. 

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