, 
COMPARISON WITH OTHER SEVERE EARTHQUAKES IN SAME REGION. 451 
affected; some ceased to run, and others had an increased supply of water. Near San 
Fernando a large stream of water was found running from the mountains, where there had 
been none before. In San Diego and at San Fernando several houses were thrown down, and 
at San Buenaventura the roof of the Mission Church fell in. Several new springs were 
formed near Santa Barbara. In the San Gabriel Valley the earth opened in a gap several 
miles long, and in one place the river deserted its ancient bed and followed this new opening. 
In the valley of the Santa Clara River there were large cracks in the earth. A large fissure 
was made in the western part of the town of San Bernardino. At Fort Tejon the shock 
threw down nearly all buildings, snapt off large trees close to the ground, and overthrew 
others, tearing them up by the roots. It also tore the earth apart in a fissure 20 feet wide 
and 40 miles long, the sides of’which vent then came together with so much violence that 
the earth was forced up in a ridge 10 feet wide and several feet high. At Reed’s ranch, not 
far from Fort Tejon, a house was thrown down and a woman in it was killed. 
The most interesting fact connected with the earthquake of 1857 is that it was due to 
an earth movement on the same diastrophic line as that on -which faulting occurred 
on April 18, 1906. ‘The movement in 1857 was, practically speaking, along the southern 
half of the known extent of the San Andreas Rift, while that of 1906 was along the 
northern half. 
