co46

35.7249 deg N

120.2818 deg W

The creepmeter crosses the San Andreas fault roughly 1 km south of Hwy46. Following the Parkfeld earthquake it recorded 15 mm of afterslip. Thereafter a rate of 3.1 mm/year is observed consisting of 1-2 mm amplitude creep-events interupted by small left lateral events of similar amplitude.

The creep-meter was operated briefly in the 1990's and was reactivated after the 2004 Parkfield earthquake. It operated without telemetry to Dec 2010.

In Dec 2010 it was reinstalled using steel anchors and Sutron telemetry. On 26 Dec the 1 inch range transducer was replaced with a 2 inch range transducer J2794.

Click here for a text file of 2004-2011 data.

Two columns CSV dat suitable for excel. Column 1 date format MM/DD/YY space HH:MM:SS Column 2 c461 calibrated dextral slip,

Click here for a text file of Jan 2011 data onward.

Five columns CSV data. Column 1 date format MM/DD/YY space HH:MM:SS Column 2 c461 calibrated dextral slip,column 3 V462 Rupture slip in mm Couln 3 C46t temperature count column 5c46v battery voltage mV