Two earthquakes shook northern California early today, but local officials said there were no immediate reports of injuries or damages.
A magnitude 5.1 quake occurred about 19 miles (30 km) west of Petrolia, California, according to the US Geological Survey. The town is about 265 miles (426 km) north of San Francisco. The quake hit at 2:26 PST (9:26 a.m. British time) and was 11 miles (17 km) deep, according to the USGS National Earthquake Centre.
The second quake, a 4.1 magnitude, struck about a minute later, 11 miles (17 km) west southwest of Fort Ross, California, which is about 90 miles (144 km) from San Francisco, California. It was 3.1 miles (5 km) deep, the centre said.
Magnitude 5 quakes are considered moderate and capable of causing considerable damage, while magnitude 4 quakes are considered light and capable of moderate damage.
Reuters