1978 Santa Barbara earthquake

Earthquake in California, United States 1978 Santa Barbara (Goleta) earthquake USA California 1978-08-13 22:54:52 August 13, 1978 15:54:52 PDT 5.1 L yes 5.6 w yesHough S.E. Martin S.S. 2018 A proposed rupture scenario for the 1925 MW 6.5 Santa Barbara, California, earthquake Tectonophysics 747–748 211–224 10.1016/j.tecto.2018.09.012 2018Tectp.747..211H 134802727 8.8 km 7 65 injuries 0.23−0.94 g1978 Santa Barbara Earthquake: In Brief https://projects.eri.ucsb.edu/sb_eqs/1978/1978.html 2021-10-27 projects.eri.ucsb.eduThe Santa Barbara earthquake of 13 august, 1978 1979 https://onlinelibrary.wiley.com/doi/abs/10.1002/eqe.4290070508 2021-10-28 Wiley Online Library 10.1002/eqe.4290070508 Miller Richard K. Earthquake Engineering & Structural Dynamics 7 5 491–506 1979EESD....7..491M subscription Thrust unknown ci10012262 $15 million (1978 rate) in damages 34.18 -118.25 region:US_type:event inline,title Santabarbara1978.jpg The derailment of a freight train, caused by the earthquake 677997 The 1978 Santa Barbara earthquake (also known as the Goleta earthquake), occurred on August 13, 1978, 3:54 p.m. (PDT) with its epicenter beneath the Santa Barbara Channel.Modugno Tom 2014-10-19 Goleta Earthquake 1978 https://goletahistory.com/earthquake-1978/ 2021-10-28 Goleta HistoryM 5.1 – 12 km S of Santa Barbara, CA https://earthquake.usgs.gov/earthquakes/eventpage/ci10012262/executive live 2021-10-28 United States Geological Survey https://web.archive.org/web/20210624200332/https://earthquake.usgs.gov/earthquakes/eventpage/ci10012262/executive 2021-06-24 The magnitude of the earthquake was estimated at l yes 5.1 according to the Southern California Seismic Network; however, it may have been as high as 5.6 w yes. There were no deaths from the event; however, 65 people sustained mild to moderate injuries.Southern California Earthquake Data Center at Caltech https://scedc.caltech.edu/earthquake/santabarbara1978.html 2021-11-13 Southern California Earthquake Data Center Tectonic setting Santa Barbara is part of California, which is known for its very high level of seismic activity, the second highest in all of the United States only behind Alaska. The Santa Barbara area is affected by numerous faults, inland within the mountainous ridges on the Santa Ynez Range down to the coastal plains and beneath the Santa Barbara Channel.Liddicoat J. C. 1990-09-01 Tectonic rotation of the Santa Ynez Range, California, recorded in the Sespe Formation Geophysical Journal International 102 3 739–745 10.1111/j.1365-246X.1990.tb04592.x 1990GeoJI.102..739L 0956-540X free The Santa Barbara Channel lies within the Transverse Ranges block where the transform boundary between the North American and Pacific plates takes on a transpressional character associated with the "Big Bend" in the San Andreas Fault. The faults beneath the channel trend mainly west–east and are mainly thrusts with associated folding.Chapter 2: Tectonic History of the Transverse Ranges: Rotation and Deformation on the Plate Boundary Education at the Center for Watershed Sciences https://watershed.ucdavis.edu/education/classes/eastern-santa-cruz-island/pages/chapter-2-tectonic-history-transverse-ranges-rotation-and 2021-11-13 watershed.ucdavis.edu 2021-11-13 https://web.archive.org/web/20211113015905/https://watershed.ucdavis.edu/education/classes/eastern-santa-cruz-island/pages/chapter-2-tectonic-history-transverse-ranges-rotation-and dead Santa Barbara was previously hit by a much larger earthquake in 1925, with estimated magnitude between 6.5 and 6.8 w, causing $8 million (1925 rate) in damage and killing 13 people.Scott Harrison 2019-06-28 From the Archives: The 1925 Santa Barbara earthquake https://www.latimes.com/visuals/photography/la-me-fw-archives-the-1925-santa-barbara-earthquake-20190626-htmlstory.html live 2021-10-28 Los Angeles Times https://web.archive.org/web/20190628233721/https://www.latimes.com/visuals/photography/la-me-fw-archives-the-1925-santa-barbara-earthquake-20190626-htmlstory.html 2019-06-28 Earthquake According to initial records it measured 5.1–5.7 L and is still being debated today. The fault that caused the tremor has still been unidentified however surface ruptures were found facing Northwestward around the epicenter focused beneath the Santa Barbara Channel. Seismograph monitors in the campus of the University of California, Santa Barbara (UCSB) measured 0.45 g, another monitor at the top of the North hall on the other hand recorded accelerations as high as 0.94 g.1978 Santa Barbara Earthquake: In Brief https://projects.eri.ucsb.edu/sb_eqs/1978/1978.html 2021-10-28 projects.eri.ucsb.edu Other local seismographs claim that 0.40 g was recorded in Goleta and only 0.23 g was recorded in Santa Barbara.Miller Richard K. 1979 The Santa Barbara earthquake of 13 august, 1978 https://onlinelibrary.wiley.com/doi/abs/10.1002/eqe.4290070508 Earthquake Engineering & Structural Dynamics 7 5 491–506 10.1002/eqe.4290070508 1979EESD....7..491M 1096-9845 subscription Coincidentally, just a day before the earthquake struck, four seismographs were installed near the most affected areas. The newly installed instruments helped determine the focal mechanism; thrust faulting with a small component of left-lateral strike-slip.M 5.1 – 12 km S of Santa Barbara, CA: Focal Mechanism https://earthquake.usgs.gov/earthquakes/eventpage/ci10012262/focal-mechanism live 2021-10-28 United States Geological Survey https://web.archive.org/web/20211113015836/https://earthquake.usgs.gov/earthquakes/eventpage/ci10012262/focal-mechanism 2021-11-13 Damage Despite having a relatively moderate magnitude, it generated unusually strong ground movements.Untitled – Desastres (CIDBIMENA) http://cidbimena.desastres.hn/pdf/eng/doc4044/doc4044-a.pdf Cidbimena.desastres.hn The city of Goleta suffered the greatest damage due to its location nearest to the epicenter. Items were thrown out off shelves at shops, glass windows on buildings shattered, walls cracked and one roof reportedly collapsed. Rockslides were triggered, one of them blocking California State Route 154, 5 km southeast of the San Marcos Pass, forcing a closure for 30 hours. Other landslides occurred nearby the San Marcos Pass, and along south of U.S. Highway 101.Artificial And Natural Slope Failures, The Santa Barbara Earthquake Of August 13, 1978 http://www.johnmartin.com/earthquakes/eqpapers/00000045.htm 2021-11-13 johnmartin.com 2021-11-13 https://web.archive.org/web/20211113015838/http://www.johnmartin.com/earthquakes/eqpapers/00000045.htm dead The airport terminal at the Santa Barbara Municipal Airport leaned, and a nearby freight train from Goleta derailed. At the library of the UCSB, some 400,000 volumes or about one third of all books were thrown out of shelves. The total damage was at $15 million, in the UCSB it was at $5.5 million alone. See also List of earthquakes in 1978 List of earthquakes in the United States List of earthquakes in California References Category:Earthquakes in California Category:1978 earthquakes Category:1978 in California