Mag 5.6 earthquake hits Northern California, which according to a Wikipedia item, ranks close to the force recorded in California once on average every 20 to 30 years:

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Earthquake Details


  • This event has been reviewed by a seismologist.


Location41.153°N, 123.817°W
Depth32.9 km (20.4 miles)
  • 10 km (6 miles) WSW (247°) from Weitchpec, CA
  • 28 km (17 miles) ENE (63°) from Westhaven-Moonstone, CA
  • 29 km (18 miles) ENE (70°) from Trinidad, CA
  • 50 km (31 miles) NE (36°) from Eureka, CA
  • 352 km (218 miles) NW (326°) from Sacramento, CA
Location Uncertaintyhorizontal +/- 0.3 km (0.2 miles); depth +/- 0.8 km (0.5 miles)
ParametersNph= 62, Dmin=17 km, Rmss=0.17 sec, Gp= 72°,
M-type=regional moment magnitude (Mw), Version=6
Event IDnc71734741


The US Geological Survey reports that a magnitude-5.5 quake struck at 1.07pm local time, about 30km east of Trinidad in a rural area of Humboldt County.

A dispatcher at the sheriff’s department says the quake was widely felt and the shaking lasted 30 to 45 seconds.

The department says there are no immediate reports of injury or damage, but deputies are going out to check.