The Battalion. (College Station, Tex.) 1893-current, May 02, 2003, Image 17

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    SPORTS
HE BATTALION
fields
r, didn’t come cm
ker returned from a
ated the bruise will
ice swelling and has
nd Epsom salts. Pan
v the bruise to help
loot' to absorb more
off, only walkin'
son of 1990 Derby
he track Thursday,
'er been a great jog-
>se long legs and he
like pistons. He’s a
next, followed bya
ip to the 6:04 p.m.
better indicationo(
track.
s that are gone in a
at take a month"
/laker faces a tough
first Derby victory,
race in the last 23
ds out long shots
ic in his quest fora
‘can’t be a positive
from the Derby as
eceding race. After
II a horse,
om the No. 12 post
aboard, nobody-
a if the bruise will
edict they’re going
said. “But it’s not
he proves he’s a
ic of those, you're
>erby favorite since
ic before finishing
wins in the Florida
was already being
in part because of
me connections,
ed what separates
ear-olds,
rainer said. “lean
e been disappoint-
eders’ Cup races
BC Sprint. And
. but has three sec-
rby and Belmont
e 2002 Belmont.
Rules
0
Derby hands ever.
NATION
FHE BATTALION
5B
Friday, May 2, 2003
dentists propose new
earthquake alert system
By Andrew Bridges
THE ASSOCIATED PRESS
LOS ANGELES — Scientists working in
Southern California have proposed a way of inter
preting feeble tremors that herald a large earth
quake, a step that could help in providing advance
wanting.
The system theoretically could give anywhere
m seconds to tens of seconds of advance notice
-enough time to send school children diving
below their desks or to cut the flow of gas through
pipelines vulnerable to rupture, scientists said.
Details appear Friday in the journal Science.
Similar systems already are used in California
i Japan on a smaller scale. The latest system
mid not predict or forecast earthquakes, but
rather interpret the staggered way in which a
quake’s energy travels to the surface.
The first indication at the surface that a large
earthquake has occurred is typically the jolt
caused by the arrival of a fast-moving but low-
energy wave called the primary or P wave.
is followed by the more energetic but slower-
moving S or shear wave that causes far more vio
lent shaking.
Richard Allen of the University of Wisconsin-
Madison and Hiroo Kanamori of the California
Institute of Technology developed a way to deter
mine the location, origin, time and — most impor-
y —magnitude of an earthquake from as lit
tle as four seconds of measurements of the P
wave. The system would rely on seismic instru
ments already deployed across the greater Los
Angeles region.
Tapping into
an earthquake’s
advance notice
Scientists are developing an
early warning system that could
provide as much as 40 seconds
of notice before an earthquake
strikes The system detects a
quake's primary, or P waves,
which precede the more
destructive shear, or S waves.
Seconds of warning time
at various distances from J
30
the epicenter
Ventura-*
Los Angeles
20
T
Anaheim
compression wavesVeach
P waves: Low energy
compression wa-
the surface first
» S waves: Destructive,"
oscillating waves travel at
half the speed of P waves
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SOURCES: ESRI; University of Wisconsin-Madison; Science AP
“If we can detect this P wave and use the infor
mation contained in it to estimate the hazard asso
ciated with an earthquake, then there is the poten
tial to issue a warning before any significant
ground motion reaches the surface,” Allen said.
The amount of forewarning would depend on
the distance of the sensors from an earthquake’s
epicenter.
If directly above the epicenter, there would be
no time for a warning, since the S wave would
arrive almost immediately after the P wave. At 37
miles from the epicenter, the system could give a
magnitude estimate 16 seconds before the arrival
of the S wave and the strong ground motion that
accompanies it, Allen said.
RADIOHEAD
HAIL TO THE THIEF
THE NEW ALBUM
6 • io • o3
Alleged hero arrested,
among arson suspects
ABILENE, Texas (AP) - Arson
as the cause of an apartment
lire in which a man was hailed as
a hero for rescuing some occu
pants, then was arrested on a
probation violation after he
appeared on TV. Kris Leija has
now been named as a suspect in
the arson, investigators said.
Abilene Assistant Fire Marshal
Randy Doan said a small amount
NEWS IN BRIEF
of hydrocarbon accelerant was
found in a trailer where the
apartment fire appeared to have
started.
The identity of the hydrocarbon
will be determined by analysis in
the state fire marshal's lab.
Common hydrocarbons are gaso
line, natural gas and a variety of
oils, the Abilene Reporter-News
reported.
After Leija's bond hearing
Wednesday, his attorney, Sam
Moore, said no one - including
his client - had been ruled out as
a possible suspect.
Leija, 22, said he was passing
the apartment complex on his
bicycle early Sunday when he
noticed the blaze. He braved the
flames three times, rescuing four
children, including one in a baby
seat, and ignored paramedics
who warned him of danger.
Video footage showed Leija
collapsing on his hands and
knees from apparent exhaustion
aften/vard.
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