NAPA, Calif. — A significant aftershock from last weekend’s magnitude-6.0 earthquake rattled Northern California’s wine country Sunday, the latest of more than 70 aftershocks recorded during the past week.
The US Geological Survey said the magnitude-3.2 tremor struck 5 miles south of the city of Napa just before 2 a.m.
Thomas Brocher, director of the US Geological Survey’s Earthquake Science Center, said it was not the strongest aftershock to occur in the region since the main quake on Aug. 24. A magnitude-3.9 aftershock centered 8 miles south of Napa hit early Tuesday morning.
No additional damage or injuries have been reported.
Insured losses from the main earthquake are expected to top $1 billion.
At least 120 of the valley’s 500 vineyards, wineries, and production facilities have reported some quake damage to their wine or structures. The quake destroyed tens of thousands of wine bottles and barrels.
In Alaska on Saturday night, the state Earthquake Information Center said a magnitude-5.1 earthquake hit 43 miles northwest of Fairbanks.
The center said no reports of damage have been received about the earthquake, which hit at 7:06 p.m. and had a depth of 10 miles.
It was widely felt in the Fairbanks and North Pole, Alaska, areas and as far as Healy and Manley Hot Springs. Residents said they felt shaking for about 10 seconds.
On Aug. 13, an earthquake with a magnitude of 4.4 struck the state’s Cook Inlet region. That quake, was centered about 200 miles southwest of Anchorage at a depth of about 82 miles.