Saturday, July 21, 2012

5.1, 5.2 Earthquakes hit Off Shore in Northern California

Location in the state of California
Location in the state of California (Photo credit: Wikipedia)
 Two earthquakes over 5.0 have hit off shore in Northern California during the past 24 hours.  One registered 5.1 and the other was 5.2.  Be careful.  Be prepared.


Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude5.1
Date-Time
Location40.382°N, 125.559°W
Depth10 km (6.2 miles) (poorly constrained)
RegionOFFSHORE NORTHERN CALIFORNIA
Distances
  • 108 km (67 miles) W (274°) from Petrolia, CA
  • 112 km (70 miles) W (259°) from Ferndale, CA
  • 121 km (75 miles) WSW (252°) from Humboldt Hill, CA
  • 126 km (78 miles) WSW (249°) from Eureka, CA
  • 397 km (247 miles) NW (318°) from San Francisco City Hall, CA
Location Uncertaintyhorizontal +/- 2.7 km (1.7 miles); depth +/- 31.6 km (19.6 miles)
ParametersNph= 37, Dmin=104 km, Rmss=0.22 sec, Gp=256°,
M-type=regional moment magnitude (Mw), Version=A
Source
Event IDnc71819391

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude5.2
Date-Time
Location40.430°N, 125.234°W
Depth0.6 km (~0.4 mile) (poorly constrained)
RegionOFFSHORE NORTHERN CALIFORNIA
Distances
  • 81 km (50 miles) W (279°) from Petrolia, CA
  • 84 km (52 miles) W (259°) from Ferndale, CA
  • 93 km (58 miles) WSW (249°) from Humboldt Hill, CA
  • 99 km (62 miles) WSW (246°) from Eureka, CA
  • 382 km (238 miles) NW (321°) from San Francisco City Hall, CA
Location Uncertaintyhorizontal +/- 1.8 km (1.1 miles); depth +/- 13.6 km (8.5 miles)
ParametersNph=151, Dmin=76 km, Rmss=0.57 sec, Gp=230°,
M-type=regional moment magnitude (Mw), Version=6
Source
Event IDnc71819471
Enhanced by Zemanta

No comments: