A 3.9 magnitude earthquake struck south of the Bay Area, California, on Oct. 5.
The U.S. Geological Survey (USGS) said the quake struck 3 miles deep and about 2 miles southwest of Tres Pinos, California, at around 6 a.m. local time.
A number of people on the USGS website said they felt the tremor.
“Just experienced my first real earthquake while living here in California... feeling like I need my grandma and a spoonful of sugar,” wrote one person.
“Holy crap big earthquake just hit in California,” added another person.
“You know ur in California when ur waken up by an earthquake #goodmorning,” added another.
It’s not clear if there were any reports of injuries or damage.
Indonesia Earthquake Update
More than 1,550 people have been killed in the earthquake and tsunami (seen at the top of this article) on Sulawesi, Indonesia, last week, according to ABC. A 7.5 magnitude earthquake struck on Sept. 28.On Oct. 3, a volcano erupted on the same island.
“It could be that this earthquake triggered the eruption, but we have seen an increase in volcanic activity since July and this began surging on Monday. Yet we can’t say there a direct link, as the mountain is quite far away,” Kasbani, who is the head of Indonesia’s Volcanology and Geology Disaster Mitigation Agency, said on local television, according to The Associated Press.
Nazli Ismail, a geophysicist at the University of Syiah Kuala in Banda Aceh on Sumatra island, said there is no evidence the two events are linked. “People talk about the butterfly effect. The concept is that when a butterfly flaps its wings, it can cause a catastrophe,” he said. “So it is possible for the earthquake to trigger the volcano eruption, but it’s not conclusive. This needs to be further investigated.”
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