Greetings tooters!
this account is for Dr. Jason "Jay" R. Patton (aka EarthJay) and I march for science. #hashtag #Introduction #MastodonIntroduction
His main education/outreach effort is voluntarily writing up #EarthquakeReport posts on earthjay.com. These are for #earthquake and #tsunami events of interest, sorted in different ways; sorted by year here: https://earthjay.com/?page_id=3220
they are an engineering geologist (PG license 9758) who serves the public while at the California Geological Survey, Seismic Hazards and Tsunami programs. https://www.conservation.ca.gov/cgs/
he has been studying the tectonics of the Cascadia subduction zone (a convergent plate boundary fault system) for over 25 years (MS thesis at cal poly humboldt, dept geology). he is an adjunct professor at this dept. https://geology.humboldt.edu/
they studied marine sedimentary records (submarine landslide deposits called turbidites) of earthquakes offshore of Sumatra/Cascadia for my marine geology & geophysics PhD at oregon state university. https://ceoas.oregonstate.edu/
capital letters are over rated but chocolate and oxford commas are not.
#EarthquakeReport for $OTD in 1964 M9.2 #Earthquake in #Alaska
2nd largest eq recorded on modern instruments
generated coseismic (during the earthquake) vertical land motion
triggered a transpacific #Tsunami
read more https://earthjay.com/?p=3833
#EarthquakeReport for M6.4 #Earthquake near #Vanuatu #Fiji
Strike-slip (right-lateral?) related to transform fault (?) along the Central Spreading Ridge in North Fiji Basin
Read 2017 report for tectonic background https://earthjay.com/?p=4761
https://earthquake.usgs.gov/earthquakes/eventpage/us7000m86i/executive
#EarthquakeReport for #OTD in 2019 M 5.0 #Earthquake in #Alaska
normal (extensional) oblique (strike-slip) earthquake mechanism
interesting location with historical analogue (1958 M 7.1)
learn more: https://earthjay.com/?p=8403
#EarthquakeReport for M 6.9 #Gempa #Earthquake in #PapuaNewGuinea
oblique-normal (extensional and strike-slip)
strong shaking
chances for landslides and liquefaction
report with interpretive posters: https://earthjay.com/?p=11869
#EarthquakeReport for M 6.9 #Earthquake #Gempa in #PapuaNewGuinea
https://earthquake.usgs.gov/earthquakes/eventpage/us6000mksx/executive
oblique normal (strike-slip with component of extension) near (though shallower) the location of M 7.0 on 2 April 2023
interpretive poster
2023 report here: https://earthjay.com/?p=10964
#EarthquakeReport for M 6.9 #Earthquake #Gempa in #PapuaNewGuinea
https://earthquake.usgs.gov/earthquakes/eventpage/us6000mksx/executive
high intensity
@USGS_Quakes model suggests high chance for liquefaction
learn about liquefaction and read 2023 report here: https://earthjay.com/?p=10964
#EarthquakeReport for M 6.9 #Earthquake #Gempa in #PapuaNewGuinea
https://earthquake.usgs.gov/earthquakes/eventpage/us6000mksx/executive
oblique normal (strike-slip with component of extension) near (though shallower) the location of M 7.0 on 2 April 2023
read 2023 report here: https://earthjay.com/?p=10964
Friends of the Pleistocene: 2024 Pacific Northwest Cell
Ice and Fire: The Glacier and Eruptive History of the Oregon Cascades
Dylan Rood, Anders Carlson, Hal Wershow, Javaria Aziz, Doug Clark, Daniele Mckay provide some basic trip details:
#EarthquakeReport for #OTD in 2020 M 5.7 #Earthquake in #Utah
felt widely
normal (extensional) mechanism
associated with the Wasatch fault
@USGS_Quakes model suggests chance for liquefaction
learn more: https://earthjay.com/?p=9401
#EarthquakeReport for #OTD in 2023 M 7.0 #Earthquake along the #Kermadec trench
outer rise normal (extensional) earthquake (not on subduction zone megathrust fault)
generated tsunami
learn more: https://earthjay.com/?p=10902
#EarthquakeReport for #OTD in 2011 M 9.1 #Earthquake offshore of #Japan
megathrust subduction zone earthquake
generated transpacific #Tsunami
triggered landslides & induced liquefaction
strong shaking felt widely
learn interactively here: https://earthjay.com/?p=9773
#EarthquakeReport from #Earthjay
listen to @humboldtcalpoly & @redwoodstweets presidents #TalkHumboldt interview me about #Earthquakes and #Tsunami along the north coast of #California #HumboldtCounty
https://www.khsu.org/show/talk-humboldt/2024-03-07/talk-humboldt-geologist-jay-patton
#EarthquakeReport for #OTD in 2017 M 6.3 #Earthquake in #NewBritain #PapuaNewGuinea
reverse/thrust (compressional) earthquake mechanism
possibly (?) on megathrust subduction zone fault
learn more: https://earthjay.com/?p=5142
#EarthquakeReport for #OTD in 2021 M7.3/7.4/8.1 #Earthquake along Kermadec trench
each earthquake generated #Tsunami as evidenced by tide gage data
learn more https://earthjay.com/?p=9955
#EarthquakeReport for M6.7 #Earthquake offshore of #Macquarie
Possibly right-lateral strike-slip mechanism (?)
Analogy earthquake in 1987
Learn more from 2016 report:
https://earthjay.com/?p=3736
https://earthquake.usgs.gov/earthquakes/eventpage/pt24063000/executive
Red circle = epicenter
#EarthquakeReport #TsunamiReport for #OTD in 2010 M 8.8 #Sismo #Terremoto #Earthquake offshore of #Chile
megathrust subduction zone earthquake
generated trans-Pacific #Tsunami
@USGS_Quakes models show chance for landslides/liquefaction
learn more https://earthjay.com/?p=5111
#EarthquakeReport for #OTD in 2018 M 7.5 #Earthquake in #PapuaNewGuinea
reverse (compressional) earthquake mechanism
associated (?) with Papuan Fold and Thrust Belt (PFTB)
learn more
https://earthjay.com/?p=7157
update
https://earthjay.com/?p=7193
#EarthquakeReport for #OTD in 2022 M 6.1 #Gempa #Earthquake in #Sumatra #Indonesia
right-lateral strike-slip earthquake
associated w/Sumatra fault
high intensity shaking felt widely
@USGS_Quakes models show probable landslide/liquefaction
learn more:
https://earthjay.com/?p=10146
#EarthquakeReport for #OTD in 2018 M 7.2 #Sismo #Terremoto #Earthquake en #Mexico
generated strong ground shaking and lots of damage
learn more:
https://earthjay.com/?p=7119
#EarthquakeReport for #OTD in 2021 M 7.7 #Earthquake offshore of the #LoyaltyIslands
thrust (compressional) earthquake mechanism
possibly on megathrust subduction zone fault
generated small #Tsunami
See poster here:
https://earthjay.com/?p=9988
lover of mud, sand, gravel, chocolate and Earthquake Reports at https://earthjay.com