[Sca-cooks] OT:Earthquakes, was Weather in Oertha

[RON CARNEGIE]

    I used to volunteer at Fort Tejon, and the comments regarding estimates 
are quite correct.  It is not known which quake the Fort Tejon or the San 
Francisco was stronger, let alone the New Madrid.  All the estimates of the 
magnitude of the Fort Tejon quake are simply, that estimates. Of course loss 
of live and property was much less as there was very little out there at the 
time.    I think the San Francisco quake is actually recorded though.

    I do not miss Earthquakes, having lived through three strong ones, and 
having suffered damage from them, but then every place has its natural 
disasters.

Ranald de Balinhard


>> > The next largest was the Fort Tejon Quake, on the San Andreas
>> > Fault, on Jan. 9, 1857, with a magnitude of 7.92.  Then comes
>> > the 4th New Madric Quake on Feb. 7, 1812, with a magnitude of
>> > 7.88.  The Great Quake of San Francisco, on April 18, 1906 was
>> > a magnitude of 7.80.
>> >
>>
>> As I recall all of these magnitudes are estimates based on recorded
>> occurences during the earthquakes.  I don't recall whether or not the San
>> Francisco Earthquake was recorded, but it is possible as John Milne 
>> invented
>> the modern seismograph in 1880.  Magnitudes tend to be more questionable 
>> the
>> further back you go.
>>
sca-cooks