Southern California rattled by swarm of dozens of small earthquakes in a day's span

02:25

Why earthquakes are felt differently in the US

While you may think quakes are a western US problem, some of the largest temblors in US history have happened in the East.

THE TAKEAWAY

• A swarm of small earthquakes rattled parts of Southern California from Friday night into Saturday.
• Earthquake magnitudes ranged from 1.0 to 2.7.
• Reports indicate that residents in several South Los Angeles communities reported feeling light shaking.

LENNOX, Calif.- A swarm of small earthquakes rattled parts of Southern California from Friday night into Saturday, with activity concentrated around Lennox and Westmont.

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The U.S. Geological Survey (USGS) defines an earthquake swarm as a series of earthquakes that occur in a relatively small area over a period of time. Unlike a typical earthquake sequence, a swarm does not have a defined mainshock followed by aftershocks.

The graphic shows the overall total number of earthquakes from Friday at 8 p.m. to Saturday at 8 p.m. across much of Southern California, including the swarm.

(FOX Weather)

According to the USGS, dozens of earthquakes occurred over a span of just over 18 hours between 8 p.m. Friday and 2:30 p.m. Saturday local time, with magnitudes ranging from 1.0 to 2.7.

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Local reports indicate that residents in several South Los Angeles communities reported feeling light shaking.

Houses in a Residential District in the Inglewood area of Los Angeles, California, USA as seen from above.

(benedek / Getty Images / Getty Images)

Earthquake swarms can occur along faults and may continue for varying lengths of time, according to the USGS.

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Data shows this particular swarm occurred near the Newport-Ingleowood Fault Zone, which runs through part of Southern California.