Two Quakes Shake The Eastern Sierra

September 6, 2005

    Two earthquakes, one of them measuring 3.4 on the Richter scale, shook up the Eastern  Sierra Monday night and Tuesday morning.
    The U.S. Geological Survey described the first temblor, the 3.4, as a "minor quake." It happened at 9:53 p.m. Monday night and was centered 11 miles southwest of Toms Place, 13 miles west-northwest of Round Valley and 14 miles southeast of Mammoth. The location is just to the west of the Hilton Creek fault.
    The second temblor, a 3.2 "micro quake,"  happened at 4:35 a.m. Tuesday and was centered eight miles north-northwest of Olancha and 69 miles south-southeast of Bishop.
    Following are the  principal earthquake parameters for each quake:

Quake 1

Magnitude              : 3.39  ML (A minor quake)
Event Date & Time      : 09/05/2005   09:53:30 PM PDT
                         09/06/2005   04:53:30    UTC
Coordinates            : 37.4697 N, 118.8327 W
                       : (37 deg. 28.18 min. N, 118 deg. 49.96 min. W)
Depth                  :    2.5 miles (   4.1 km)
Location Quality       : Good

17 km ( 11 miles) SW  (233 degrees) of Toms Place, CA
22 km ( 13 miles) WNW (287 degrees) of Round Valley, CA
23 km ( 14 miles) SE  (145 degrees) of Mammoth Lakes, CA
36 km ( 22 miles) WNW (290 degrees) of West Bishop, CA
40 km ( 25 miles) WNW (287 degrees) of Bishop, CA

More Information about this event and other earthquakes is available at
here.

number of phases             : 109
rms misfit                   :   0.06 seconds
horizontal location error    :   0.2  km
vertical location error      :   1.0  km
maximum azimuthal gap        :  77    degrees
distance to nearest station  :  13.   km
event ID:   40179023

Quake 2

Magnitude              : 3.2  Ml (A micro quake)
Event Date & Time      :  9/ 6/2005   04:35:30 AM PDT
                          9/ 6/2005   11:35:30    UTC
Coordinates            : 36.3967 N, 118.0363 W
                       : (36 deg. 23.80 min. N,  118 deg.  2.18 min. W)
Depth                  :    1.4 miles (   2.2 km)
Location Quality       : Excellent
  8 mi. ( 13 km) NNW of Olancha, CA
69 mi. (112 km) SSE of Bishop , CA
36 mi. ( 58 km) NNW of COSO (quarry)

More Information about this event and other earthquakes is available at
here.

ADDITIONAL EARTHQUAKE PARAMETERS
________________________________
rms misfit                   :  0.26 seconds
horizontal location error    :   0.5 km
vertical location error      :   1.2 km
maximum azimuthal gap        :    55 degrees
distance to nearest station  :   6.0 km
event ID                     : 14182080

E-mail this page to a friend.

Enter your e-mail address and your friend's e-mail address, then click "Send Link". Your friend will receive a link to this page. Your e-mail addresses will not be saved or shared.