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Spoke to Jack this morning and will try to clarify his forecast for the S.F. Bay Area.
In his 4/6/10 forecast, he says:
“Jack is continuing to receive many large Initial Signals for the West Coast of North America, specifically California.
There is a large buildup of Initial Signals which are possibly leading to a 6 magnitude earthquake - however, because of the many signals coming in from around the World, Jack cannot issue his 90 window at this time.”
Ron’s post may have been a bit premature. If Jack does not receive cluster large Main Signals before the 21st of April, 2010, then on the 22nd, he will open a general forecast 90 day window, waiting for the Main Signals.
It has happened in the past with small Main Signals that smaller (4mag – 5mag) cluster of quakes may occur. If a Main Signal is received, the magnitude may be 1mag larger. At this time, no quake larger than a 6 is indicated.
As mentioned in earlier forecasts, the primary area is on the Hayward and the Calaveras faults, in the East Bay Area (across the bay from San Francisco). Jack did not give an indication of how far south this forecast covers. (i.e. San Jose)
In his 4/6/10 forecast, he says:
“Jack is continuing to receive many large Initial Signals for the West Coast of North America, specifically California.
There is a large buildup of Initial Signals which are possibly leading to a 6 magnitude earthquake - however, because of the many signals coming in from around the World, Jack cannot issue his 90 window at this time.”
Ron’s post may have been a bit premature. If Jack does not receive cluster large Main Signals before the 21st of April, 2010, then on the 22nd, he will open a general forecast 90 day window, waiting for the Main Signals.
It has happened in the past with small Main Signals that smaller (4mag – 5mag) cluster of quakes may occur. If a Main Signal is received, the magnitude may be 1mag larger. At this time, no quake larger than a 6 is indicated.
As mentioned in earlier forecasts, the primary area is on the Hayward and the Calaveras faults, in the East Bay Area (across the bay from San Francisco). Jack did not give an indication of how far south this forecast covers. (i.e. San Jose)