THE US GEOLOGICAL SURVEY HAS DOWNGRADED THE INITIAL QUAKE AND UPGRADED THE SECOND.

 

 

LAKE PILLSBURY, Calif. – An updated report from the US Geological Survey showed that two earthquakes measuring more than 4.0 in magnitude each occurred just a minute apart Tuesday evening.

A 4.3-magnitude quake occurred at 8:49 p.m. Tuesday, with an epicenter located six miles north of Lake Pillsbury at a depth of 9.4 miles, as Lake County News has reported.

It had been immediately preceded during a six-minute period by three smaller quakes, ranging between 1.6 and 2.9 in magnitude, all located on the same epicenter but at slightly shallower depths.

The US Geological Survey records initially showed several smaller quakes before and after the 4.3 quake.

However, on Wednesday reports were updated to show that a 4.2-magnitude quake occurred at 8:50 p.m., also six miles north of Lake Pillsbury but at a depth of 7 miles.

No shake reports were sent to the US Geological Survey on either of the large quakes, although Lake County News received reports Tuesday evening from county residents who reported feeling a quake.

Since the two larger quakes occurred, US Geological Survey sensors recorded seven other earthquakes in the Lake Pillsbury area from late Tuesday through early Thursday morning, measuring between 1.5 and 2.7 in magnitude.

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