Jason R. Patton @earthjay@qoto.org

#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:

http://www.fop.cascadiageo.org/field-trips/pacific-northwest-cell-field-trips/2024-pnw-oregon-cascades/

#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

#EarthquakeReport for #OTD in 1971 M 6.7 #Earthquake in #Sylmar #California

UPDATED POSTER TODAY

many casualties :-(
led to many improvements :-)
the Alquist Priolo Act
@USGS_Quakes models suggested chance for landslides and liquefaction

learn more here
https://earthjay.com/?p=7092

#EarthquakeReport for #OTD in 1971 M 6.7 #Earthquake in #Sylmar #California

many casualties :-(
led to many improvements :-)
e.g., the Alquist Priolo Act
@USGS_Quakes models suggested high chance for landslides and liquefaction

learn more here:
https://earthjay.com/?p=7092

#EarthquakeReport for #OTD in 2017 M 6.3 #Earthquake in #Pakistan

associated with the Makran convergent (moving together) plate margin
caused extensive damage
caused a mud volcano offshore

learn more here:
https://earthjay.com/?p=5063

#EarthquakeReport for #OTD in 2023 M 7.8 & 7.5 #Deprem #Earthquake in #Turkiye #Turkey

Kahramanmaras earthquake sequence involved multiple faults
killed >50,000 :-(
triggered tsunami
landslides and liquefaction

read report:
https://earthjay.com/?p=10772