Earthquakes

Earthquake San Francisco- 1906 On the morning 12 past
5:00 San Francisco suffered a major earthquake that killed
3000 people, the earthquake lasted for about 40 seconds
and was recorded at 8.3 on the Richter Scale. People ran
from there houses and some stayed inside the buildings and
were crushed. The people who ran in the streets were killed
by toppled buildings falling from above. There fire
department was efficient but the water pipes that go down
the San Andreas Fault were severed. The fire could not be
stopped because there were now water until the next couple
of days. Gas mains blew and caused massive fires all around
the city. The city was in the middle of a great economic
boom and almost all was lost on that day. The old buildings
were never made to withstand earthquakes and easily
crumbled and fell crushed people. Some sailers on the coast
tried to leave but the waves flew the boats around like toys.
The buildings were made out of unreined forced brick or
wood which couldn\'t withstand a earthquake of that
magnitude. After the earthquake, they noticed that the San
Andreas Fault shifted a 250-mile long section witch tore
roads and fences. Rivers, roads and power lines were
severed and not aligned with its surroundings. A road across
the fault ended up 21 feet north of the road to the east same
with the rivers and creeks. The earthquake\'s most damage
were in Los Bonas 30km east of the fault yet there was little
damage along towns to the east side of San Francisco Bay
such as Berkely, 25km east of the fault. And the capital of
California Sacramento that was 120km east of the rupture
showed no damage. Scientists found out that the earthquake
originated north of Oregon and south to Los Angeles a total
of 1170 Km. Knowing now that buildings could not
withstand a earthquake with unreiforced brick, the new San
Francisco would have buildings that can handle major
earthquakes by constructing them so that they sway back
and fourth rather than just simply crumbling to the ground
killing people. The San Andreas fault is formed by the
Pacific plate sliding north and the North American plate
running South. The two slide together caused the
earthquake. The most recent earthquake in that area today,
was in 1990 in San Francisco which measured around 8.3
on the richter scale but it wasn\'t a bad as the one in 1906.

Category: History