1989 Loma Prieta earthquake

E1415

The 1989 Loma Prieta earthquake was a powerful magnitude 6.9 quake in Northern California that caused widespread damage in the San Francisco Bay Area, including freeway collapses and the disruption of the World Series.

Aliases (5)
  • Loma Prieta earthquake ×3
  • Cypress Street Viaduct collapse ×1
  • Earthquake Series ×1
  • Loma Prieta earthquake collapse of Cypress Freeway ×1
  • World Series earthquake ×1

Statements (50)
Predicate Object
instanceOf earthquake
natural disaster
affectedArea Monterey Bay region
Oakland, California
San Francisco Bay Area
San Francisco, California
Santa Cruz County, California
aftershocks numerous aftershocks over subsequent weeks
alsoKnownAs Loma Prieta earthquake
World Series earthquake
associatedWith 1989 World Series
buildingCodeImpact led to revisions of California seismic building codes
casualtiesFatalities 63
casualtiesInjured over 3700
country United States
date 1989-10-17
depth about 19 km
economicLoss over 6 billion US dollars
effectOnWorldSeries suspension of the 1989 World Series for 10 days
epicenterNear Loma Prieta Peak
epicenterRange Santa Cruz Mountains
fault San Andreas Fault
historicalSignificance one of the most significant California earthquakes since the 1906 San Francisco earthquake
localTimeZone Pacific Daylight Time
locatedIn Northern California
magnitudeMoment 6.9
magnitudeMw 6.9
maximumMercalliIntensity IX (Violent)
mediaCoverage extensive live television coverage due to World Series broadcast
notableInfrastructureFailure Cypress Street Viaduct collapse
San Francisco–Oakland Bay Bridge upper deck collapse
collapse of sections of the Nimitz Freeway (Interstate 880)
damage to San Francisco Marina District
occurredDuring Game 3 of the 1989 World Series
partOf seismic activity of the San Andreas Fault system
primaryCauseOfDamage ground shaking
landslides
liquefaction
region California
timeLocal 1989-10-17T17:04:15-07:00
timeUTC 1989-10-18T00:04:15Z
transportationImpact long-term closure and redesign of the Cypress structure
temporary closure of the San Francisco–Oakland Bay Bridge
triggeredEvent fires in San Francisco Marina District
freeway collapses in Oakland
landslides in Santa Cruz Mountains
typeOfFaulting oblique-slip
worldSeriesTeams Oakland Athletics
San Francisco Giants
year 1989

Referenced by (16)
Subject (surface form when different) Predicate
Bay Bridge
West Oakland ("Loma Prieta earthquake collapse of Cypress Freeway")
affectedBy
1989 Loma Prieta earthquake ("Loma Prieta earthquake")
1989 Loma Prieta earthquake ("World Series earthquake")
alsoKnownAs
Santa Cruz Mountains
earthquakeEvent
San Francisco
historicEvent
1989 World Series ("Loma Prieta earthquake")
interruptionCause
1989 World Series ("Earthquake Series")
nickname
1989 Loma Prieta earthquake ("Cypress Street Viaduct collapse")
notableInfrastructureFailure
Game 3 of the 1989 World Series ("Loma Prieta earthquake")
postponementCause
Marina District
rebuiltAfter
San Francisco–Oakland Bay Bridge
retrofitAfter
Ferry Building
sustainedDamageIn
Transbay Tube
wasClosedAfterEvent
Marina District
wasHeavilyDamagedIn
Santa Cruz County, California
wasHeavilyImpactedBy

Please wait…