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Earthquake Experts Talk Tsunamis

It's National Tsunami Preparedness Week. Do you know what to do?

USGS image illustrates maximum current speeds in knots for the Ports of Los Angeles and Long Beach generated during a tsunami scenario.
USGS image illustrates maximum current speeds in knots for the Ports of Los Angeles and Long Beach generated during a tsunami scenario.

Earthquake experts today cautioned that while rare, a large tsunami could have a significant impact on Southern California's coastal areas and urged residents to prepare for such an event as part of National Tsunami Preparedness Week.

"Knowing what to do when you hear that warning is essential to anyone that ever visits the beach," Lucy Jones, who studies earthquakes and tsunamis for the United States Geological Survey, said at a special event at the Aquarium of the Pacific in Long Beach tonight.

"If you are at the beach and you feel strong earthquake shaking, leave the beach. The downside is you miss a day at the beach, the upside is your life."

Jones, who recently headed a federally-funded study that modeled a potential tsunami's impact on California, said that unlike earthquakes, officials can usually give plenty of advanced warning of an approaching tsunami. Jones based her models off a massive magnitude 9.2 Alaskan earthquake that struck 50 years ago and caused California's largest-recorded tsunami event.

Jones estimated that around 90,000 people could live in a tsunami's inundation zone if the wave were to strike California during the day. To that end, cities across California on Thursday will host "tsunami walks" to teach the public that simply walking to higher ground will save lives.

"If you are more than five feet above sea level, you are safe," Jones said. "If they just all walk out of the zone, we won't have any casualties."

Models created by Jones and her team estimate that a tsunami could trigger a sudden 5-10 foot increase in sea level that would put low-lying areas such as Venice Beach and Huntington Beach most at risk. In addition, ports and harbors would fall victim to extremely strong and damaging currents, according to USC Tsunami Center's Patrick Lynett.

"The ports and harbors really have to design for earthquake hazards, but they also have to understand their tsunami hazards so that if they can withstand a large earthquake, they also need to withstand the 50-year tsunami event that also comes in and generates strong currents," Lynett said.

"I think for most people, tsunamis are a second thought, but for people who live next to the coast, they can't be a second thought."

Jeff Reeb, the director of the Los Angeles County Office of Emergency Management, also emphasized the importance of tsunami preparedness, but said the public shouldn't live in fear of one.

"A large tsunami is a very rare event but we also see that even though rare, the risk it poses in the way it damages property and life is high," Reeb said.

"We want people to remain calm and realize that it is not something that is going to happen frequently, but if it does happen, heed the warnings and alerts and act appropriately."

Today's tsunami presentation will be available for the public to view online on the Aquarium of the Pacific's website. Tsunami Walks will take place across California on Thursday, including a planned walk at 9 a.m. in Huntington Beach, officials said.

--City News Service


EDWARD SIEGEL March 29, 2014 at 09:32 PM
SEISMOLOGY D I D N O T BECAUSE IT C A N N O T "PREDICT" THIS, NOR ANY OTHER EARTHQUAKE(EQ) BECAUSE IT, OVER-ENCUMBERED WITH "SPECIFICITY-OF-'COMPLEXITY' " (SoC)-TACTICS, IT CAN AT BEST ONLY APPLY LOCALLY IF AT ALL!!! DESPITE: KELIS-BORAK(RIP!!!; UCLA)) AND THOMAS JORDAN'S (MIT/USC) AND LEON KNOPOFF'S (UCLA)AND RUNDLE WITH DONALD TURCOTTE(CORNELL/UC-DAVIS) SHOW-BIZ P.R. MEDIA-HYPE SPIN-DOCTORING ENTERTAINING("FULL OF 'FURY'; SIGNIFYING ABSOLUTELY NOTHING!!!") B.S.(!!!) [GOOGLE "EDWARD SIEGEL NPR TURCOTTE"] CLAIMS TO THE CONTRARY, WITH ACQUIESICING (!!!) ONLY ROMAN GABRIELOV(PURDUE) AND EMIL OKAL(NORTHWESTERN) AND VLADIMIR KASSABOKOV AND HIROO KANAMORI (CALTECH; KYOTO-PRIZE-WINNER) AND STEVEN DAY(SDSU) AND MARY LOU WITH MARK ZOBACK(STANFORD) AND BAXTER ARMSTRONG(IBM) ONCE WITH CLEMENT TATRO(RIP!!!; MSU/LLNL) HAS/HAD ANY IDEA OF G E N E R I C THINKING!!! THE USGS, (MARCIA!!!) McNUTTS ALL, SIMPLY HAS NOT ANY CLUE IN ANY WAY WHATSOEVER!!!
EDWARD SIEGEL March 29, 2014 at 09:32 PM
AS A, IF NOT T H E ONLY, F A T H E R[1968{WITH JULIAN FREDERICK(UNIVERSITY OF MIHIGAN[UM]) WITH CHARLES VEST: UM; MIT PRESIDENT-EMERITUS!!!; NATIONAL ACADEMY OF ENGINEERING-CHAIRMAN-EMERITUS!!!}; 1971[{WITH CLEMENT TATRO(RIP!!!; MSU/LLNL), T H E T R U E F A T H E R OF ACOUSTIC-EMISSION!!!(AFTER KAISER!!!)}; PHYSICA STATUS SOLIDI = FIRST ACOUSTIC-EMISSION MEASUREMENT OF CREEP-PLASTICITY/PLASTIC-FLOW=2-PAPERS!!!; [ EXAMPLE: GOOGLE: SIEGEL AND GREGSON JR., MATERIALS SCIENCE AND ENGINEERING 1971”]; 1974[SCRIPTA METALLURGICA]; 1975; 1976[3RD WORLD CONFERENCE ON ACOUSTIC-EMISSION, TOKYO]; 1977[ACTA METALLURGICA]; 1980[ARISTOTLE BIRTHDAY SYMPOSIUM ON PHYSICS AND MECHANICS, THESSOLONIKI]; 1992[MATERIALS RESEARCH SOCIETY FALL MEETING, BOSTON]];…] OF (SO M I S - CALLED) “BAK”/”BNL”/”DOE” S T O L E N (MUCH OVER-HYPED) ‘SANDPILE-AVALANCHES’ (“GAMES PEOPLE PLAY WITH THEMSELVES AND FOIST ON OTHERS!!!; THOSE WHO CAN, DO; THOSE WHO CANNOT, MODEL!!!”) “SELF-ORGANIZED-CRITICALITY” (SOC), MERELY “A TAD LATE” RE-DISCOVERY OF ISAAC NEWTON’S THIRD-LAW OF MOTION F = ma BUT IN THE (r.t) INVERSE/DUAL/TRANSFORM-SPACE (k[=1/r],w[=1/t]) [GOOGLE: “EDWARD SIEGEL ACOUSTIC-EMISSION”; “EDWARD SIEGEL PLASTIC-FLOW”; “EDWARD SIEGEL PLASTICITY”; “EDWARD SIEGEL JAMMING”; “EDWARD SIEGEL FRACTURE”; “EDWARD SIEGEL NOISE”; “EDWARD SIEGEL 1-OVER-f NOISE”; “EDWARD SIEGEL POWER-SPECTRUM”; “EDWARD SIEGEL POWER-SPECTRA”; “EDWARD SIEGEL SELF-ORGANIZED-CRITICALITY”; “EDWARD SIEGEL SOC”; …] WHILE IN SEATTLE(2010-2013) I REPEATEDLY WARNED STATE OF WASHINGTON OFFICIALS (WASHINGTON STATE DEPARTMENT OF ECOLOGY!!!; GOVERNOR’S-OFFICE!!! ENUMEATED, DENUMERATED, NAMED IN DETAIL BELOW!!!) TO IGNORE THE UNIVERSITY OF WASHINGTON AKA wIsh-ington IT COULD/WOULD BE HONEST!!!, “WOULD-BE “SCIENCES” BUT SADLY ALAS MERE S E A N C E S(!!!)”(UW.EDU) / NATIONAL SCIENCE FOUNDATION (NSF.GOV) SEISMOLOGY SHEER-NONSENSE(!!!) AS MEDIA-HYPE P.R. SPIN-DOCTORED “SHOW-BIZ” “BUSH-WAAAH-…-AAH” B.S. MARKETED/ PROMULGATED/TRUMPETED BY MOST ESPECIALLY EVER-DYSFUNCTIONAL EARTH-SCIENCES DEPARTMENT EVER-DYSFUNCTIONAL SEISMOLOGY-LABORATORY (AKA LaVatory!!!)’s JOHN VIDALE AND HEIDI HOUSTON’S AND ALLISON DUVALL’S HOCUS-POCUS(!!!) “SLOW-QUAKES”(=(MERELY)= F = ma ! ! !) AND “GEO-MORPHOLOGY” SHEER-NONSENSE(!!!), AND/WITH EVER-DYSFUNCTIONAL UNIVERSITY OF WASHINGTON(AKA wIshing(IT WERE HONEST!!!)ton) APPLIED-PHYSICS LABORATORY(AKA LaVatory!!!)’s EVER-DYSFUNCTIONAL SEISMOLOGY-LABORATORY(AKA LaVatory!!!)’s ROBERT ODOM (AKA ODOR!!!) HOCUS-POCUS SHEER-NON SENSE(!!!).(FREQUENCY UNITS IN HERTZ, V E R S U S N O T ANYMORE CYCLES-PER-SECOND, AND N E V E R A G A I N IN PERIOD[UNLESS IT IS MOTHER-EART H'S FEMALE "TIME-OF-THE-MONTH/DECADE/CENTURY/MILLENIUM!!!???) USGS??? SAME OLD SAME OLD SAME OLD!! THEY'RE ALL (MARCIA) McNUTTS!!! THEY CAN ONLY ANNOUNCE THAT AN EQRTHQUAKE H A S JUST OCCURRED WHEN THE BEST TRANSDUCERS, ASNIMALS BARE TOOTSIES, AND EVERY BUG AND EARTHWORM KNOWS THAT(AND EVEN SOME RARELY-SOBER FOLKS TOO!!!). HOW ABOUT,INSTEAD OF THE USUAL P O S T(!!!)-DICTION, SOME P R E (! ! !)- D I C T I O N ALREADY USGS??? WE DON'T WANT TO CRY OVER SPILLED MILK BUT TO PREVENT OUR MILK FROM SPILLING!!! LEARN THAT NEWTON'S THIRD-LAW OF MOTION F + m a HAS A UNIVERSAL INVERSSE/DUAL-TRANSFORM FROM BY-ROTE USGS/AGU-LAND'S POSITION(r) AND TIME(t) TO ITS INVERSE/DUAL-SPACE (k=1/r; w = 1/t) CALLED A POWER-SPECTRUM (EITHER (PEJORATIVE) "NOISE" ~ GENERALIZED-SUSCEPTIBILITY [= 1/m = a/F = EGFECT/CAUSE = OUTPUT/INPUT = X(w) WITH AN INTER-INVERSE-VARIABLES-RELATING DISPERSION-RELATION w(k)!!! THIS IS SOLID-STATE/CONDENSED-MATTER PHYSICS – LAND, AND CIRCA ~1922 LEON BRILLOUIN(RIP!!!) [“WAVE-PROPAGATION IN PERIODIC-STRUCTURES”, DOVER] IT BECAME GOSPEL TO ANYONE AND EVERYONE EXCEPT: BIOLOGISTS, SOME CHEMISTS, AND LAST-BUT-NOT LEAST SEISMOLOGISTS!!!
Penny Arévalo March 29, 2014 at 10:23 PM
Anyway to repost without the all caps? It's really hard to read. Thanks.

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