The 1906 Earthquake and Fire Destroy San Francisco

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• Disaster09/21/2026@ScienceDesk

  The Great Lisbon Earthquake Destroys Lisbon

  Lisbon, Portugal

  

  Starts 11/01/1755CONFIRMED90% CONFIDENCE270.9 years agoThe source^[1] dates it firmly — the earthquake "hit the Iberian Peninsula and Northwest Africa on the morning of Saturday, 1 November, Feast of All Saints, at around 09:40 local time". The day is certain; the hour is only "around", so the pin is all-day rather than timed.

  A magnitude 7.7-or-greater earthquake struck off Cape St. Vincent on the morning of All Saints' Day, and fires and a tsunami finished what the shaking began. Between 30,000 and 40,000 died in Lisbon alone.

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• Disaster09/21/2026@ScienceDesk

  The Haiti Earthquake Wrecks Port-au-Prince

  Leogane, Ouest, Haiti

  

  Starts 01/12/2010 9:53PMCONFIRMED93% CONFIDENCE16.7 years agoThe source^[1] states the quake "struck Haiti at 16:53 local time on Tuesday, 12 January 2010", which is 21:53 UTC; the USGS^[2] catalogue records 21:53:10Z for event usp000h60h.

  A magnitude 7.0 earthquake struck near Leogane, 25 km west of Port-au-Prince, at 16:53 local time. Haiti's capital, its National Palace and much of its public administration were destroyed.

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• Transport09/11/2026@ThePinGang

  Francis Scott Key Bridge Rebuilt

  Baltimore, Maryland

  

  Starts 10/01/2028ESTIMATED53% CONFIDENCEin 2.0 yearsGiven as a target, not a fixed date, per the pin description: "…i lost power and struck a support pier. Estimated date.…"

  Replacement for the Baltimore bridge destroyed in March 2024 when the container ship Dali lost power and struck a support pier. Estimated date.

  $4.8B

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• Disaster09/21/2026@ScienceDesk

  The Kahramanmaras Earthquakes Devastate Turkey and Syria

  Pazarcik, Kahramanmaras Province, Turkey

  Starts 02/06/2023 1:17AMCONFIRMED92% CONFIDENCE3.6 years agoThe source^[1] times the first shock exactly: "The first earthquake occurred at 04:17:35 TRT (01:17:35 UTC), measuring moment magnitude (Mw) of 7.8." The USGS^[2][3] catalogue records 01:17:34Z for event us6000jllz.

  A magnitude 7.8 strike-slip earthquake hit southern Turkey at 04:17 local time and reached Mercalli intensity XII around the epicentre and in Antakya. A magnitude 7.5 shock followed nine hours later.

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• Disaster09/21/2026@ScienceDesk

  The Ancash Earthquake Buries Yungay Under Huascaran

  Offshore Chimbote, Ancash, Peru

  

  Starts 05/31/1970 8:23PMCONFIRMED93% CONFIDENCE56.3 years agoThe source^[1] gives "31 May off the coast of Peru in the Pacific Ocean at 15:23:29 local time", which is 20:23:29 UTC; the USGS^[2] catalogue records 20:23:30 UTC for event iscgem796163.

  A magnitude 7.9 earthquake off the Peruvian coast shook loose part of Mount Huascaran, and the debris avalanche buried the town of Yungay. An estimated 66,794 to 70,000 people died, the world's deadliest avalanche.

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• Transport09/14/2026@BuildDesk

  Francis Scott Key Bridge Collapses in Baltimore

  Francis Scott Key Bridge, Baltimore, Maryland, USA

  

  Starts 03/26/2024CONFIRMED89% CONFIDENCE2.5 years agoHappened as dated, per the source^[1]: "In March 2024 a bridge... The Francis Scott Key Bridge in the US city of Baltimore had collapsed into the Patapsco River after being struck by a cargo ship."

  The Francis Scott Key Bridge, a 2.6km truss bridge carrying I-695 over Baltimore's Patapsco River since 1977, collapsed after being struck by a container ship, killing several construction workers.

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• Architecture09/15/2026@BuildDesk

  San Francisco's Millennium Tower Fix Declared a Success

  301 Mission Street, San Francisco, California, USA

  

  Starts 06/21/2023CONFIRMED89% CONFIDENCE3.3 years agoHappened as dated, per the source^[1]: the pile-driving and load-shifting project "was finished earlier this month," in an article published June 21, 2023.

  Engineers completed a $100M underpinning project meant to arrest the sinking and tilt of San Francisco's Millennium Tower.

  $100M

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• Disaster09/21/2026@ScienceDesk

  The Tangshan Earthquake Levels a City of a Million

  Tangshan, Hebei, China

  

  Starts 07/27/1976 7:42PMCONFIRMED93% CONFIDENCE50.2 years agoThe source^[1] is explicit about both clocks: the quake hit "at 03:42:55 on 28 July (19:42:55, 27 July UTC) 1976". The pin is stored in UTC, so it falls on 27 July even though the earthquake is known by its local date of 28 July.

  A magnitude 7.5 earthquake struck directly beneath Tangshan at 3:42 a.m. local time, and within minutes 85% of the city's buildings were down. The official toll was 242,469 dead; historians accept at least 300,000.

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• Transport09/15/2026@BuildDesk

  LA's New Sixth Street Viaduct Opens as the 'Ribbon of Light'

  6th Street Viaduct, Santa Ana Freeway, Boyle Heights, Los Angeles, Los Angeles County, California, 90021, United States

  

  Starts 07/09/2022CONFIRMED85% CONFIDENCE4.2 years agoHappened as dated, per the source^[1]: "Dramatic new 6th Street Bridge opens, delivering a 'love letter' to Los Angeles," reported the day of the public opening.

  Los Angeles opened its replacement Sixth Street Viaduct, nicknamed the 'Ribbon of Light,' on 9 July 2022, six years after demolishing the earthquake-vulnerable 1932 original.

  $588M

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• Transport09/15/2026@BuildDesk

  Golden Gate Bridge District Approves Final $1BN Seismic Retrofit Phase

  Golden Gate Bridge, San Francisco, CA, USAGolden Gate Bridge, Highway and Transportation District

  

  Starts 10/24/2025CONFIRMED84% CONFIDENCE334 days agoHappened as dated, per the source^[1]: "voted Friday to authorize about $1.01 billion in allocations toward the project."

  The district that runs the Golden Gate Bridge signed off on roughly $1 billion in funding for the final stage of a decades-long project to keep the span standing through a major earthquake.

  $1B

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• Disaster09/21/2026@ScienceDesk

  Vesuvius Buries Pompeii and Herculaneum

  Mount Vesuvius, Campania, Italy

  

  Starts 08/24/79ESTIMATED70% CONFIDENCE1947.1 years agoThe day is genuinely disputed: "The large majority of extant medieval manuscript copies ... indicate a date corresponding to August 24" and a 2022 analysis "claims that no other date than August 24 is supported by evidence from Pliny", while a separate 2022 collaborative study "has determined a date of between October 24th and November 1st". The traditional 24 August is taken here and flagged estimated.^[1]

  Mount Vesuvius threw a column of superheated ash and gas 33 km into the sky, then collapsed it into pyroclastic surges that buried Pompeii and Herculaneum. The remains of more than 1,500 people have been recovered from the two towns.

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• Disaster09/21/2026@ScienceDesk

  The Strongest Earthquake Ever Recorded Hits Valdivia

  Offshore Valdivia, Los Rios, Chile

  

  Starts 05/22/1960 7:11PMCONFIRMED93% CONFIDENCE66.3 years agoThe USGS^[2][3] catalogue gives 1960-05-22T19:11:20Z as the origin time of event official19600522191120_30; the source^[1] states "19:11:14 UTC, 15:11:14 local time", six seconds earlier, and the catalogue value is used here.

  A magnitude 9.5 megathrust rupture off southern Chile shook for ten minutes — the strongest earthquake ever instrumentally recorded. Its tsunami crossed the Pacific and struck Hilo, Hawaii, with waves 10.7 m high.

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