Dr. Lucy Jones

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Thank you @DrLucyJones for highlighting the @CAGeoSurvey’s Seismic Hazard Zone Maps in this week’s podcast about liquefaction. The maps can be found online here: maps.conservation.ca.gov/cgs/EQZApp/app/ twitter.com/dljcss/status/…
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In this week’s episode of the #GettingThroughIt podcast, @DrLucyJones explains what liquefaction is, when it occurs, and how to know if you are at risk. Listen now: bit.ly/GettingThrough…
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Recent probably induced quakes in central US: 2020-03-26 M5.0, 41 km W of Mentone TX 2016-11-07 M5.0, 3 km W of Cushing OK 2016-09-03 M5.8, 14 km NW of Pawnee OK 2016-02-13 M5.1 18 km SE of Waynoka OK 2011-11-06 M5.7 8 km NW of Prague OK 2011-08-23 M5.3, 6 km S of Valdez CO
This area of western Texas was historically very quiet, but has had 375 M≥3 quakes beginning in 2019. This is the type of pattern that suggests the quakes are induced by pumping fluids into the ground. This is not too big to be induced twitter.com/USGS_Quakes/st…
Going on @AirTalk KPCC at 9:20am PST with @DrLucyJones to talk about the @CaltechSeismo Centennial. Tune in if you want hear more about earthquake science in California
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This Sat., Nov. 12 @CaltechSeismo will celebrate its centennial, marking an unparalleled century at the forefront of #earthquake #science and #geophysics. Read about the milestone and join us for the public events! caltech.edu/about/news/cal… #CaltechSeismo100
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Únete a la premiere del documental #ForgetMeNot, la historia de una conexión inesperada a través del océano. 🗓️Martes 15 de noviembre 9 am (Panamá) ¡Inscríbete al evento organizado junto a@UNDRR_Americass! �undrr.org/event/undrr-ro…cj#DíaDeTsunamim#TsunamiDayaqy
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🎙️ ON AIR: Ask a Seismologist:@DrLucyJoness joins to take YOUR#earthquakee questions. ❓ What are your questions about the science of earthquakes… and how to stay safe during one? 📻 Listenbit.ly/3fGmB5vx7
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#OTD in 2002 a M7.9 earthquake, one of the largest ever recorded on U.S. soil occurred on the Denali-Totschunda fault system, one of the longest strike-slip fault systems in the world and rivals in length California’s famed San Andreas system. ow.ly/aqgt50Ltjen #TBT #DYK
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The Dialogue’s theme is 𝗜𝗺𝗽𝗿𝗼𝘃𝗶𝘀𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴: 𝘄𝗵𝗮𝘁 𝗮𝗿𝗲 𝘁𝗵𝗲 𝗽𝗮𝗿𝗮𝗹𝗹𝗲𝗹𝘀 𝗯𝗲𝘁𝘄𝗲𝗲𝗻 𝗺𝘂𝘀𝗶𝗰𝗮𝗹 𝗶𝗺𝗽𝗿𝗼𝘃𝗶𝘀𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗰𝗹𝗶𝗺𝗮𝘁𝗲 𝗺𝗼𝗱𝗲𝗹𝗶𝗻𝗴? ⁣
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Earthquakes sometimes happen in unexpected places! There was recently a M6 earthquake in the North Pacific Ocean west of San Diego.
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Register now for a special #CaltechSeismo100 event on EQ hits (& misses) in classic disaster films! @DrLucyJones and a panel of experts will share what happens during and after EQ and if the movies get it right. Reserve your free tickets for Nov 12 here: scienceexchange.caltech.edu/connect/shakin…
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If someone puts out a prediction of a 98% chance of a M7 many times and none of those quakes have happened, you have to realize that their model isn't very good. You can always look at their Tweet history to see their success rate
We cannot predict earthquakes, but we can predict the predictions. After every quake big enough to interest the wider public, there will be a prediction that an even bigger quake is coming somewhere soon. Social media means those rumors spread faster with even less justification
And if you are wondering, this is how those probabilities are calculated. podbean.com/ew/pb-b2n42-fb… twitter.com/DrLucyJones/st…
The Bay Area earthquake was on the Calaveras fault. The largest quake in the Bay Area since the 2014 Napa quake M6.0 earthquake.usgs.gov/earthquakes/ev…
What are the parallels between musical improvisation and #climate modeling? Join @TempoAction Dialogue with @DrLucyJones, composer @KikukoMaruo & @Caltech climate scientist #TapioSchneider 🔗bit.ly/3s5JoKP4 🗓️11/9 4pm PT, 11/10 8am JT, with simultaneous interpretationhK
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The @CaltechSeismo has been studying SoCal's earthquakes for 100 years and Hollywood has been making movies about it for almost as long. Come hear what we think about what Hollywood says about us. scienceexchange.caltech.edu/connect/shakin…
We partnered with @USGS and @CaltechSeismo Lab to install more than 50 seismic sensors at our substations and facilities. These sensors contribute to early warning efforts and real-time data to help speed up #earthquake recovery. #safety energized.edison.com/stories/sce-pl…
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Over the lifetime of these buildings, this $1 Billion investment, will save 1500 lives and $41B in averted losses. 32:1 is a damn good cost benefit ratio. Thank you, ⁦@MayorOfLA⁩ for bringing this to Los Angeles latimes.com/california/sto…
Tomorrow is #ShakeOut Day. For 14 years, we have used this day to remember that a big earthquake will happen on some random day in our future. After the drill, use the day to do one more thing for earthquake safety. podbean.com/ew/pb-br9eh-ee…
At this event, @DrLucyJones and a panel of experts will share the good, the bad, and the truly ridiculous from #earthquake disaster flicks. Join us for the fun, and learn a thing or two, as well! Learn more and reserve your (free) tickets: scienceexchange.caltech.edu/connect/shakin…
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This will be followed with discussion exploring the similarities and differences between scientific modeling and musical improvisation. Click to register: bit.ly/3s5JoKP #musicforclimateaction @DrLucyJones @DLJCSS
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Thank you, Mike! In a sweet coincidence, I received the GSA @geosociety public service award today and will receive the AGI award tomorrow. I'm glad our professional societies are recognizing the importance of bringing science to society twitter.com/mdettinger/sta…
This week in #EarthquakeHistory: 35 years ago the Whittier Narrows M5.9 EQ occurred. The most severe damage was in Whittier's Uptown district, Alhambra's old downtown, and Pasadena's Old Town section due to high amounts of unreinforced masonry buildings. scedc.caltech.edu/earthquake/whi…
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Another way that the Seismo Lab and @NASAJPL are linked is that JPL supports the #SCSN and @USGS_ShakeAlert mission! They host one of our many seismic stations at their Goldstone Deep Space Communications complex near Barstow. jpl.nasa.gov/missions/dsn
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We know music can move people in so many ways, but what it's the next step if we want to form a #climatechange fighter community?⁣ ⁣ Listen to Allison Girvan's statement⁣ 👇N
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Songs are a great factor that contributes to community enforcement.⁣ ⁣Listen to #TempoTeam member, Shawn Kirchner, talking about the Berenice Johnson Reagan case.⁣ ⁣ You can watch the full discussion in Dialogue 3 (link in bio)⁣ ⁣ #musicforclimateaction @DLJCSS @DrLucyJones
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@DrLucyJones wonder if you would be able to cite some type of possible timeframe regarding the new info from Harvard about the PV fault. Like “studies show within 25 years” or something. I understand you can’t put a real time in it, but generalized idea?
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@ortegarobe My paper in 1985 showed 6% of Calif quakes were followed by a larger quake within 5 days. Others have found similar results. Reasenberg and Jones (1989) analyzed aftershocks from Omori and b-values & showed extrapolating to foreshocks gave the same rate. science.org/doi/10.1126/sc…
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▶️ Yesterday on Tempo Dialogue 4 we talked about solutions for climate change. Stay tuned because we'll be sharing some great material that came out of this discussion with experts.⁣ @DrLucyJones @DLJCSS
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This is an aftershock. Like all quakes, aftershocks follow a magnitude distribution with bigger aftershocks less likely. The chance that the largest will be within 1.2 units of mainshock is 50%, within 0.5 units is 25%. That it will be >mainshock is 5%. Then we change the names twitter.com/DrWendyRocks/s…
The #EarthquakeFellows presented their final projects this weekend! Over the course of the program, they built their own @raspishake seismometers, conducted research, collected & analyzed the data, and communicated the results. Congratulations fellows on completing the program!
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You can always see if an event is real by going to earthquake.usgs.gov/earthquakes/ma… Most seismometers in the US are run by or shared with @USGS and they have 24/7 staff to confirm the locations. Yes, this is a real quake. twitter.com/ooscsouthoc/st…
Will the Taiwan and Mexico earthquakes trigger something in California? No. Why not? Listen here: podbean.com/ew/pb-wjpeh-12…
I'm cautiously optimistic the tsunami will stay small. The Manzanillo tide gauge is down and that's the only place where maybe there was a slightly larger wave but with most of the sites showing first arrivals it looks like it'll stay a very modest event twitter.com/geosmx/status/…
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With the M7.6 that occurred in Mexico today it seems apropos to bring up the “Birthday Paradox” (it’s more common than you’d think for 2 people to share a birthday). Especially in a high seismicity area, it can even apply to EQs! Mexico has had 3 M7+ EQs on Sept 19 since 1985. twitter.com/USGS_Quakes/st…
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Southern California has one day with several quakes, June 28: 1966 Parkfield M6.0 1991 Sierra Madre M5.8 1992 Landers M7.3 Doesn't mean anything - just interesting coincidence.
There is a 50% probability that among 23 people, 2 will share a birthday. When you have many earthquakes, some will be on the same day. With many places in the world with bad quakes, you expect one of the places to have several big quakes on one day. Random statistics are cool.
𝗬𝗼𝘂 𝗮𝗿𝗲 𝗶𝗻𝘃𝗶𝘁𝗲𝗱 𝘁𝗼 𝘁𝗵𝗲 𝗧𝗲𝗺𝗽𝗼 𝗗𝗶𝗮𝗹𝗼𝗴𝘂𝗲 #𝟰!⁣ ⁣ ⁣The Dialogue's theme is 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, centered on what actions we can take to m#musicforclimateaction c@DLJCSScteaction⁣ @DLJCSS t.co/138FB5YPTX
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Foreshocks are just mainshocks that happen to have a really big aftershock: This is our null hypothesis that has yet to be disproved. Hear more at: podbean.com/ew/pb-x2gef-10…
This is a common pattern for foreshocks. The M6.4 has aftershocks that start to die off, then a spurt of quakes leading up to the mainshock. But it could have just been a spurt of aftershocks. You don't know it is a foreshock until the mainshock occurs.
Taiwan is a complex corner where 3 tectonic plates converge & averages ~10x as many quakes as California. Huadong Valley, sometimes called Longitudinal Valley is a straight line along the east coast of Taiwan, formed by a strike-slip fault, probably the source for today's quake
Non-structural elements are JUST as important as how the building is built. This appears to a failure of the lighting & drop-ceiling at a Taiwan gym from the M6.9 quake. These can still *seriously* injure someone. #taiwan #earthquake twitter.com/rusi_bb/status…
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I'm quoting work by Charles Scawthorn. Scawthorn, C., Eidinger, J. M., and Schiff, A. J. (2005). "Fire Following Earthquake." Technical Council on Lifeline Earthquake Engineering Monograph No. 26, American Society of Civil Engineers, Reston, 345pp. twitter.com/JackieEco/stat…
Studies of fire following earthquakes in California found that 60% of the fires had electrical sources while 25% were caused by gas leaks twitter.com/JackieEco/stat…
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