THE MAGNITUDE 6.0 NAPA , CA
EARTHQUAKE
3:20 AM, AUGUST 24, 2014
The M6.0 Napa earthquake was
the strongest in the San
Francisco Bay area since the
M6.9 1989 Loma Prieta quake,
BUT it onl...
• The Bay Area is prone to large
earthquakes because it straddles the
boundary between two major
tectonic plates — the Nor...
EARTHQUAKE SCENARIOS
A DISASTER RISK REDUCTION
TECHNIQUE FOR USE IN ANY
EARTHQUAKE-PRONE AREA
NORTHERN CALIFORNIA
SCENARIO
(developed in 2008)
BASED ON INTEGRATED KNOWLEDGE
FROM MONITORING, RESEACH, AND
POSTEARTHQUAK...
• Much of the stress release happens
on the San Andreas fault, but some of
it is relieved by the Hayward fault and
other s...
• Because of its location in the densely
populated Bay area of 7 million
people, a Hayward fault quake is likely
to cause ...
DAMAGE
PHYSICAL EFFECTS CAUSE SOCIETAL
IMPACTS AND RISK
COLLAPSE
LOSS OF
FUNCTION
ECONOMIC
LOSS
RISK
• Damage will be extensive to
buildings and infrastructure.
•The region's transportation
infrastructure and water delivery...
• A M7.0 earthquake on the Hayward
fault, WHICH HAS NOT YET
HAPPENED, will cause an estimated
$210 billion dollars in dama...
BAD NEWS FOR CALIFORNIANS:
The Napa quake occurred on a a
relatively unknown and
unmonitored small fault segment,
(of whic...
LOCATION: AUGUST 24 NAPA
VALLEY EARTHQUAKE
LOCATION: AUGUST 24 NAPA
VALLEY EARTHQUAKE
USGS’ SHAKE MAP: AUGUST 24
NAPA VALLEY EARTHQUAKE
AUGUST 24: EARLY REPORTS OF
SOCIOECONOMIC IMPACTS
• Local damage to buildings and
houses, and infrastructure
• Injuries, b...
DAMAGE: AUGUST 24 NAPA
VALLEY EARTHQUAKE
DAMAGED BUILDING WERE
CORDONED OFF
DAMAGE: NAPA COUNTY SIPREME
COURT BUILDING
RUBBLE FROM THE COUNTY
COURT HOUSE
DAMAGE: CORNER OF AN UPPER
FLOOR OF A BUILDING
INJURIES: PEOPLE HURT IN THE DARK:
ESPECIALLY FROM CUTS FROM GLASS
DAMAGE TO INTERIOR CONTENTS:
AUGUST 24 NAPA VALLEY EARTHQUAKE
DAMAGE TO INTERIOR CONTENTS:
AUGUST 24 NAPA VALLEY EARTHQUAKE
AUGUST 24: EARLY REPORTS OF
SOCIOECONOMIC IMPACTS
• Damage to Highway 12
• fires, especially in mobile homes
• Damage to w...
DAMAGE TO HIGHWAY 12: AUGUST
24 NAPA VALLEY EARTHQUAKE
DAMAGE TO HIGHWAY 12: AUGUST
24 NAPA VALLEY EARTHQUAKE
BURNED OUT MOBILE HOME: AUGUST
24 NAPA VALLEY EARTHQUAKE
The quake's timing was also bad
for Napa Valley's famed
vineyards, where winemakers
are about one month away from
harvesti...
DAMAGE TO WINE BARRELS: AUGUST
24 NAPA VALLEY EARTHQUAKE
Thousands of bottles of wine
were broken and hundreds of
barrels of wine in storage were
toppled.
AFTERSHOCKS:
Buildings that were damaged or
overstressed by the M6.0 quake
may be more susceptible to
collapse from its af...
EVERY TIME AN EARTHQUAKE DISASTER OCCURS,
WE HAVE NEW KNOWLEDGE TO ADD TO OUR
“BOOKS OF KNOWLEDGE”
THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.
THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.
THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.
THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.
THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.
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THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.

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THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014. Bad news for Californians: The Napa quake occurred on a a relatively unknown and unmonitored small fault segment, (of which there are hundreds) not the well known and much longer San Andreas and Hayward fault zones. The quake's timing was also bad for Napa Valley's famed vineyards, where winemakers are about one month away from harvesting the 2014 crop. Buildings that were damaged or overstressed by the M6.0 quake may be more susceptible to collapse from its aftershocks. Presentation courtesy of Dr. Walter Hays, Global Alliance for Disaster Reduction

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THE MAGNITUDE 6.0 NAPA CALIFORNIA EARTHQUAKE STRUCK AT 3:20 AM 24 AUGUST 2014.

  1. 1. THE MAGNITUDE 6.0 NAPA , CA EARTHQUAKE 3:20 AM, AUGUST 24, 2014
  2. 2. The M6.0 Napa earthquake was the strongest in the San Francisco Bay area since the M6.9 1989 Loma Prieta quake, BUT it only had about 1/30th of Loma Prieta’s energy release
  3. 3. • The Bay Area is prone to large earthquakes because it straddles the boundary between two major tectonic plates — the North American and Pacific plates.
  4. 4. EARTHQUAKE SCENARIOS A DISASTER RISK REDUCTION TECHNIQUE FOR USE IN ANY EARTHQUAKE-PRONE AREA
  5. 5. NORTHERN CALIFORNIA SCENARIO (developed in 2008) BASED ON INTEGRATED KNOWLEDGE FROM MONITORING, RESEACH, AND POSTEARTHQUAKE STUDIES SINCE APRIL 1906
  6. 6. • Much of the stress release happens on the San Andreas fault, but some of it is relieved by the Hayward fault and other smaller parallel faults.
  7. 7. • Because of its location in the densely populated Bay area of 7 million people, a Hayward fault quake is likely to cause worse societal impacts than a San Andreas quake and be one of the nation's largest natural disasters.
  8. 8. DAMAGE PHYSICAL EFFECTS CAUSE SOCIETAL IMPACTS AND RISK COLLAPSE LOSS OF FUNCTION ECONOMIC LOSS RISK
  9. 9. • Damage will be extensive to buildings and infrastructure. •The region's transportation infrastructure and water delivery systems are expected to take a major hit in a M7.0 or greater earthquake.
  10. 10. • A M7.0 earthquake on the Hayward fault, WHICH HAS NOT YET HAPPENED, will cause an estimated $210 billion dollars in damage.
  11. 11. BAD NEWS FOR CALIFORNIANS: The Napa quake occurred on a a relatively unknown and unmonitored small fault segment, (of which there are hundreds) not the well known and much longer San Andreas and Hayward fault zones
  12. 12. LOCATION: AUGUST 24 NAPA VALLEY EARTHQUAKE
  13. 13. LOCATION: AUGUST 24 NAPA VALLEY EARTHQUAKE
  14. 14. USGS’ SHAKE MAP: AUGUST 24 NAPA VALLEY EARTHQUAKE
  15. 15. AUGUST 24: EARLY REPORTS OF SOCIOECONOMIC IMPACTS • Local damage to buildings and houses, and infrastructure • Injuries, but no deaths (yet) • Damage to interior contents of homes and stores • Loss of power, gas, and water for 70,000
  16. 16. DAMAGE: AUGUST 24 NAPA VALLEY EARTHQUAKE
  17. 17. DAMAGED BUILDING WERE CORDONED OFF
  18. 18. DAMAGE: NAPA COUNTY SIPREME COURT BUILDING
  19. 19. RUBBLE FROM THE COUNTY COURT HOUSE
  20. 20. DAMAGE: CORNER OF AN UPPER FLOOR OF A BUILDING
  21. 21. INJURIES: PEOPLE HURT IN THE DARK: ESPECIALLY FROM CUTS FROM GLASS
  22. 22. DAMAGE TO INTERIOR CONTENTS: AUGUST 24 NAPA VALLEY EARTHQUAKE
  23. 23. DAMAGE TO INTERIOR CONTENTS: AUGUST 24 NAPA VALLEY EARTHQUAKE
  24. 24. AUGUST 24: EARLY REPORTS OF SOCIOECONOMIC IMPACTS • Damage to Highway 12 • fires, especially in mobile homes • Damage to wine barrels • Damage to vineyards, which were scheduled for harvest the next day • Aftershocks
  25. 25. DAMAGE TO HIGHWAY 12: AUGUST 24 NAPA VALLEY EARTHQUAKE
  26. 26. DAMAGE TO HIGHWAY 12: AUGUST 24 NAPA VALLEY EARTHQUAKE
  27. 27. BURNED OUT MOBILE HOME: AUGUST 24 NAPA VALLEY EARTHQUAKE
  28. 28. The quake's timing was also bad for Napa Valley's famed vineyards, where winemakers are about one month away from harvesting the 2014 crop.
  29. 29. DAMAGE TO WINE BARRELS: AUGUST 24 NAPA VALLEY EARTHQUAKE
  30. 30. Thousands of bottles of wine were broken and hundreds of barrels of wine in storage were toppled.
  31. 31. AFTERSHOCKS: Buildings that were damaged or overstressed by the M6.0 quake may be more susceptible to collapse from its aftershocks.
  32. 32. EVERY TIME AN EARTHQUAKE DISASTER OCCURS, WE HAVE NEW KNOWLEDGE TO ADD TO OUR “BOOKS OF KNOWLEDGE”

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