Jason R. Patton @earthjay@qoto.org

#EarthquakeReport for #OTD in 2017 M 6.5 #Earthquake in #PapuaNewGuinea

intermediate depth compressional (reverse or thrust) earthquake in a complicated area of different subducted slabs (plates)

read report https://earthjay.com/?p=5941

#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

#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

#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

#EarthquakeReport #TsunamiReport for #OTD M 7.5 #Gempa #Earthquake in #Dongalla #Palu #Sulawesi #Indonesia

left-lateral strike-slip earthquake
kilometer scale ground failures
large tsunami runups

reports:
https://earthjay.com/?p=7793
https://earthjay.com/?p=7866

#EarthquakeReport for M5.4 #Gempa #Earthquake offshore of #Sumatra #Indonesia

Possibly aftershock from 2012 Wharton Basin M8.6 earthquake sequence

Read about 2012 earthquakes earthjay.com/?p=294

https://earthquake.usgs.gov/earthquakes/eventpage/us6000lb60/executive

#EarthquakeReport for #OTD in 2016 M 4.9 #Earthquake offshore of #Oregon #California

classic left-lateral strike-slip earthquake along reactivated faults within the Gorda plate

read more: https://earthjay.com/?p=4320

#EartthquakeReport #EarthquakeToot #TsunamiReport for M7.2 #Earthquake & #Tsunami offshore of #Alaska

megathrust interface eq in area of low slip '20 M 7.8
tsunami at Sand Point

read more about '20 (in green) '21 (blue) sequences in '21 report https://earthjay.com/?p=9849

https://earthquake.usgs.gov/earthquakes/eventpage/us7000kg30/executive

#EarthquakeReport #EarthquakeToot for #OTD in 2019 M7.2 #Gempa #Earthquake in #Halmahera #Indonesia

onshore crustal strike-slip fault earthquake yet generated a modest #Tsunami
felt widely
potential for triggered landslides and induced liquefaction

read report here
https://earthjay.com/?p=8781