 Ramba uchiverenga ndima iyi - Musi waOctober 17, 1989, kudengenyeka kwenyika kwakakura 6.9 kwakaitika muBay Areana 5:04 masikati Kuputsika kwacho kwaiva nechokuita neSan Andreas fault system uye kwakakanganisa nzvimbo dzose dzeBay Area dzine simba guru reMercalli reIX Violent. Zvivako zvakawanda muOakland zvakaparadzwa zvikuru kusanganisira chivako chine nhurikidzwa mbiri chinonzi Cypress Street Viaduct muWest Oakland chakakoromoka. Chikamu chokumabvazuva cheSan Francisco-Oakland Bay Bridge chakakuvadzwawo uye chakavharirwa motokari kwemwedzi mumwe; zambuko rakavhurwazve musi waNovember 18. Oakland yakava musha wesangano risingabatsiri rokugadzirira rakanga richangotanga pashure pokudengenyeka kwenyika apo masangano omunharaunda akaumba CARD Collaborating Agencies Responding to Disasters kuti agadzirise zvinodikanwa zvisingagadziriswi zvokugadzirira kwenjodzi zvemasangano asingabatsiri uye ezvitendero. 