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I'm Carl Azuz
welcome to CNN 10. It's the first friday
awesomein march and we are spending part of it
in the land of fire and ice
the european nation of iceland is called
that because it's home to both volcanoes
and glaciers
and meteorologists say there are signs
that a volcanic eruption is brewing
southwestern iceland has seen 17 000
earthquakes over the past
week according to the icelandic
meteorological office
sound like a lot it is a lot one
resident told cnn that it's very unusual
to feel the earth shake
24 hours a day for a whole week the
largest of these tremors had a magnitude
of 5.6
that's considered a moderate quake
depending on how deep it is
there have been some small cracks in the
roads and rock falls where the ground is
steeperbut aside from that not a lot of damage
has been reported
the tremors seem to calm down from
wednesday to thursday
but a government official doesn't think
the seismic activity is over
and while scientists don't know exactly
what's caused this swarm of quakes
a university of iceland volcanology
professor thinks they might be because
there's been a quote
intrusion of magma into the earth's
crust in southwest iceland
this is where several volcanoes are
located and it's especially concerning
because
two-thirds of the country's population
lives in the southwestern part of the
island
university computer models predict that
if there's an eruption
the resulting lava flows probably won't
impact any nearby towns or the region's
international airport but again that's
only based on models
all this has triggered a range of
reactions from people there from
anxiety to excitement and cameras have
been put on standby to live stream an
eruptionshould one take place
number one an earthquake occurs when two
blocks of the earth slip past each other
now for most of the time those blocks
are together with
friction but they are building up energy
because they are moving in different
directions
when one block decides to slip all of
the sudden that energy is released by
seismic waves
kind of like ripples on a pond creating
the earthquake
number two an earthquake can occur very
near the surface of the earth
those earthquakes are typically very
destructive or
as deep as 400 miles down into the crust
now where the shaking actually happens
that's called the hypocenter but
directly above it on the surface
that's called the epicenter number three
the power of an earthquake is called
magnitude now the intensity of the
shaking can vary
depending on the geography the
topography or even the depth of the
quake
now the usgs says there are 500 000
detectable quakes every year 100 000
can be felt and 100 will create damage
number four earthquakes themselves
actually don't kill that many people
it's the natural and man-made structures
that fall to the ground
during the shaking that injure
number five the majority of all
earthquakes and volcanoes happen
along plate boundaries the largest is
the pacific plate and its series of
boundariesall along the pacific ocean known as the
ring of fire
oh oh god it just blew up it just blew
up
it just blew up
what
three two one
ignition abort
let's prepare for second thirty-five
ten-second trivia what historic figure
proposed in alternative english alphabet
in 1779
johannes gutenberg benjamin franklin
maria montessori
and sullivan
this was ben franklin's idea and while
it didn't take off another one he had
about time changes
did so why don't we change the clocks
aheadone hour in the spring and back one hour
in the fallwell it's actually to reduce the
electricity consumption by extending the
daylight hours
in the u.s we change our clocks at 2 a.m
on the second sunday in march
that begins daylight saving time that's
when we spring ahead
on the first sunday in november we
change our clocks at 2 a.m again that's
actually
just going back to standard time believe
it or not this started with an
idea from benjamin franklin
franklin did write an essay suggesting
that people could use
less candles if they got up early and
made better use of daylight
in 1918 the standard time act
established time zones and daylight
saving time
but not all states participate to this
day most of arizona and all of hawaii
did not change their clocks over 70
countries across
the world observe daylight saving time
with notable exceptions of
china in japan in 2007 we actually
changed the date of when we set our
clocks back an hour to
the first week in november this helped
protect trick-or-treaters by giving them
an
extra hour of daylight one of the other
lines of thinking
was that we would have a better voter
turnout on election years
experts say each time you change your
clocks it's always a good idea to change
those batteries in your spoke detector
and always look forward to fall when you
get that extra hour of sleep
unless as you just heard you live in
arizona hawaii or possibly
georgia the state senate there just
passed a bill that would end
its observance of time changes now it's
up to georgia's house of representatives
and its governor to decide if
and when georgia will do this those who
want to end the time changes say they're
bad for our health
that they disrupt our sleep cycles and
cause a number of other health problems
those who want to keep the time changes
support the later daylight hours in the
summer
and say that falling back in autumn
keeps the time of sunrise closer to the
time when people wake up
a couple other states have grappled with
proposals concerning seasonal time
changes
but even among those who want to
eliminate them there's still a debate
over when to do it
does their state stay on standard time
year-round or does it opt for daylight
saving time year-round
that's what georgia's government is
trying to determine right now
and as far as the future of all of this
goes well only time will tell
while we're on the subject of time if
you want to have a lot of it
doctors say staying active is key it
improves your balance and brain health
it helps ward off diseases
a crossing guard in south carolina has
found a way to follow this advice
and keep working well into her 90s
in the middle i let them out
and i stopped this trap and i stopped
this
and let the school trap it out simple
at the young age of 94 just six years
short of a century
you said everybody listens to you they
listen nobody pushing you over because
you're 94.
no mrs stella williams starts and
ends every day right here in the center
lane of the 28 bypass
just outside of west side high school
it's good i enjoy doing it
at the reins of controlling the people
at the wheel this all started as a
temporary gig
my son-in-law he was a policeman there
and he needed somebody and he asked me
if i'd help him a few days
that few days was 25 years ago she's
been stopped signing hand
since oh yeah oh yeah so i don't let
nobody stay too long so i try to keep it
going
no signs of slowing down easy stop the
carstell the children to come up and no
signs of aging yeah people can't say
and the people she's not planning on
leaving that center lane
anytime soon maybe i'll give it another
year so
just treat everybody right that's my
motto
will she ever stop and go do something
else why cross that bridge
she's keeping things in motion minding
her bustness helping people cross while
never being cross
all in all she's doing a guard job one
step at a time of helping people from
all walks of life stay off the street
I'm Carl Azuz and fridays are austin
they are at austin high school it's
located in the town of austin indiana
thank you for subscribing and commenting
on our youtube channel
we hope everyone watching has a great
weekend ahead from all of us here at cnn