Magnitude 4.4 - OFFSHORE NORTHERN CALIFORNIA

This webpage has been replaced by a new version and will be phased out in the future. Please use our new Real-time Earthquake Map to access the latest earthquake information and event details. The links to the World, US, and CA/NV maps that were in the navigation on the left side of the page have been replaced by the links at the top of the new Map. The Real-time Earthquake Map User Guide describes how to use the map and all its features.

2012 July 08 12:05:48 UTC

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude4.4
Date-Time
Location39.480°N, 123.804°W
Depth8.1 km (5.0 miles)
RegionOFFSHORE NORTHERN CALIFORNIA
Distances
  • 4 km (3 miles) N (358°) from Fort Bragg, CA
  • 19 km (12 miles) N (358°) from Mendocino, CA
  • 28 km (17 miles) S (175°) from Cape Vizcaino, CA
  • 63 km (39 miles) NW (306°) from Ukiah, CA
  • 225 km (140 miles) NNW (328°) from San Francisco City Hall, CA
Location Uncertaintyhorizontal +/- 0.5 km (0.3 miles); depth +/- 0.8 km (0.5 miles)
ParametersNph= 45, Dmin=23 km, Rmss=0.26 sec, Gp=173°,
M-type=regional moment magnitude (Mw), Version=C
Source
Event IDnc71812891
  • Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.