Jason R. Patton @earthjay@qoto.org

#EarthquakeReport for #OTD in 2016 M 4.1 #Earthquake in northern #California

right-lateral strike-slip mechanism
between #SanAndreas and #Maacama faults
near Branscomb mud volcanoes west of Laytonville

learn more here:
https://earthjay.com/?p=4469

#EarthquakeReport for #OTD in 2022 M 6.0 #Earthquake in the northeast Pacific Ocean

rare intraplate event with few analogies

view high resolution poster: https://earthjay.com/?p=10667

#EarthquakeReport for #OTD in 2020 M 7.0 #Earthquake

offshore of #Greece generated #Tsunami

read report https://earthjay.com/?p=9644

#EarthquakeReport for #OTD in 2016 M6.6 #Earthquake #Terremoto in #Italy

widely felt
spurred many tectonic studies

read reports:
https://earthjay.com/?p=4416
update: https://earthjay.com/?p=4427

#EarthquakeReport for #OTD in 2017 M 6.7 #Earthquake offshore of #LoyaltyIslands

compressional earthquake related to the southern New Hebrides subduction zone

read reports
https://earthjay.com/?p=5918
https://earthjay.com/?p=5956

Fantastic kickoff meeting with the foremost experts in Cascadia tectonics and related science

Great breakout sessions today!

Learn more about working groups, special interest groups, equity and inclusion, and partnerships here:
https://cascadiaquakes.org/

https://qoto.org/@earthjay/111265140165220801

#EarthquakeReport for M5.9 #Lindol #Earthquake in #Mindanao #Philippines

shallow crustal
strike-slip
probably left-lateral along the Philippines fault system

https://earthquake.usgs.gov/earthquakes/eventpage/us6000lgpg/executive

tectonic background & historical analogues
https://earthjay.com/?p=5255

#EarthquakeReport for M5.9 #Lindol #Earthquake in #Mindanao #Philippines

intensity report MMI5
crustal strike-slip
probably along Philippine fault system http://dx.doi.org/10.5772/56593

https://earthquake.usgs.gov/earthquakes/eventpage/us6000lgpg/executive

tectonic background & historical analogues
https://earthjay.com/?p=5255

#EarthquakeReport for #OTD in 1989 M6.9 #Earthquake in central #California

#LomaPrieta #WorldSeries temblor occurred along the #SanAndreas fault system
landslides & liquefaction
strong & widely felt ground shaking
many casualties :-(

extensive report:
https://earthjay.com/?p=8992

#EarthquakeReport for M4.8 #Earthquake near #Petrolia #california

left-lateral strike-slip (?) earthquake within the Gorda plate

https://earthquake.usgs.gov/earthquakes/eventpage/nc73947830/executive

read about regional tectonics here: https://earthjay.com/?p=10604

#EarthquakeReport for #OTD in 2016 M6.4 #Earthquake offshore of #NewBritain #PapuaNewGunea

intermediate depth normal (extensional) earthquake within (intraslab) the Solomon Sea plate

read more:
https://earthjay.com/?p=4346

Eclipse in Manila

In Memoriam: James Frazier “Jim” Davis (1931–2023)

California Geological Survey, California State Geologist, 1978–2003

https://www.conservation.ca.gov/cgs/pages/tributes/jim_davis.aspx

#EarthquakeReport for #OTD in 2018 M7.0 #Earthquake in #NewBritain #PapuaNewGuinea

reverse (compressional) earthquake mechanism

learn more here:
https://earthjay.com/?p=7839

#EarthquakeReport for M 4.5 #Earthquake beneath #Washington

Shaking intensity up to MMI 5
Compressional earthquake mechanism suggests the event may be in North America plate

Learn more about the Cascadia subduction zone here: earthjay.com/?p=3640

#EarthquakeReport for M 4.5 #Earthquake beneath #Washington

Depth suggests may be intraplate earthquake, within subducted Juan de Fuca plate (?)

Learn more about the Cascadia subduction zone here: https://earthjay.com/?p=3640

https://earthquake.usgs.gov/earthquakes/eventpage/uw61965081/executive

#EarthquakeReport for M 6.7 & M 6.9 #Earthquake sequence in and offshore of #PapuaNewGuinea

two reverse (compressional) intraplate (?) earthquakes
earthquakes appear to reveal geometry of subducted slab (?)
low intensity ground shaking

read report here https://earthjay.com/?p=11470

Office Assistant got some exercise today...